Canker diseases of grapevine

Size: px
Start display at page:

Download "Canker diseases of grapevine"

Transcription

1 Canker diseases of grapevine JANUARY 14, 2016 Doug Gubler, Plant Pathology

2 Grapevine canker pathogens Eutypa lata- Eutypa Dieback Botryosphaeria spp- Bot Canker Phomopsis viticola- Grapevine dead arm Phaeomoniella chlamydospora- Esca Phaeoacremonium aleohilum- Esca

3 Eutypa dieback Canker

4

5 Botryosphaeria Canker Department of Plant Pathology, UC Davis Botryosphaeria canker Bot Canker in California 1990 Botryodiplodia theobroma=botryosphaeria rhodina=lasiodiplodia theobromae. 9 other species found by 2005

6 Eutypa Disease Cycle Dead Wood/ Stroma Wind Rain Growth & Decay Pruning Wound

7 Fruiting bodies (Pycnidia) Spores (conidia) Old pruning wounds Pruned debris on the ground Late fall - winter Bot Canker Disease Cycle Yield losses / Death of the plant Blockage of vascular system

8 BOTRYOSPHAERIA PYCNIDIA FOUND IN CALIFORNIA GRAPEVINES. Pycnidia of Lasiodiplodia theobromae found in Coachella Valley grapevines.

9

10 7/9/07 12/9/07 19/9/07 25/9/07 1/10/07 8/10/07 15/10/07 23/10/07 30/10/07 7/11/07 20/11/07 27/11/07 5/12/07 13/12/07 20/12/07 28/12/07 7/1/08 14/1/08 22/1/08 29/1/08 4/2/08 11/2/08 18/2/08 25/2/08 3/3/08 11/3/08 17/3/08 Epidemiology of Botryosphaeriaceae spp. in California 24/3/08 31/3/08 7/4/08 15/4/08 21/4/08 28/4/08 5/5/08 13/5/08 20/5/08 27/5/08 2/6/08 9/6/08 16/6/08 23/6/08 30/6/08 7/7/08 15/7/08 22/7/08 29/7/08 4/8/08 11/8/08 18/8/08 26/8/08 1/9/08 9/9/08 15/9/08 23/9/08 30/9/08 7/10/08 14/10/08 21/10/08 28/10/08 3/11/07 10/11/08 17/11/08 25/11/08 1/12/08 9/12/08 16/12/08 23/12/08 30/12/08 6/1/09 13/1/09 20/1/09 27/1/09 3/2/09 10/2/09 18/2/09 24/2/09 28/2/09 4/3/09 10/3/09 17/3/09 25/3/09 1/4/09 7/4/09 15/4/09 22/4/09 1/5/09 7/5/09 15/5/09 22/5/09 Vaseline slides spore trapping results in Monterey County Bot spores Precipitation (mm) Temperature (C) Bot spores values = Total spores / 2 ml of H 2 O

11 Rainfall Sprinkler irrigation Fog

12 Esca Esca, Black Measles External symptoms Department of Plant Pathology, UC Davis

13 Disease cycle of Esca (black measles) & Young Esca (Vine Decline) Perithecia in old pruning wounds or dead wood Fall Pycnidia overwinter on 3-5 year old Pruning wounds Ascospores are discharged during rainfall Winter Ascospores and pycnidial spores infect pruning wounds Teleomorph formation Pycnidium formation Insect dispersed? Pathogen colonizes the vascular system Foliar and berry symptoms Infection of vascular system leads to toxin production and symptom expression internally and foliage symptoms under water stress Summer Decline Spring

14

15 Overwintering of Black Measles pathogen: Pm. aleophilum

16 Number of colonies Temperature Cand precipitation (mm) Spore release of Pm. viticola MADERA P.viticola Precipitation (mm) Temperature ( C) Jan. Feb. Mar. Apr. May June July Aug. Sep. Oct. Nov. Dec. 0

17

18 Overwintering of black measles pathogen: Phaeomoniella pycnidia (Rooney and Gubler, 2001).

19

20

21

22 Phompsis cane and leaf spot/dead arm Fungus survives winter as pycnidia on previously infected spurs Spores released with rainfall in the spring Infect newly emerging green tissue (basal internodal) Control Spring applications of fungicides Sovran, Captan, Sulfur (10K/ha), Mancozeb Dormant LLS

23

24

25 Severely infected canes appear bleached in winter Phomopsis Botrytis Dormant infected spur position

26 Botrytis

27 Pycnidia of Phomopsis on infected tissue, cirrhus formation

28 Phomopsis infected shoots a scabby appearance

29 Overwintering inoculum Control using dormant sprays with directed nozzles No broadcast sprays

30 % of infected wounds % of infected wounds % of infected wounds % of infected wounds November Time Course Inoculation December 100 Lasiodiplodia theobromae Neofusicoccum parvum d 24 d 36 d 48 d 60 d 72 d 84 d T1 T2 T3 T4 T5 T6 T7 T January February Lasiodiplodia theobromae Neofusicoccum parvum 12 d 24 d 36 d 48 d 60 d 72 d 84 d T1 T2 T3 T4 T5 T6 T7 T March Lasiodiplodia theobromae Neofusicoccum parvum Lasiodiplodia theobromae Neofusicoccum parvum d 24 d 36 d 48 d 60 d 72 d T1 T2 T3 T4 T5 T6 T d 12 d 24 d 36 d 0 0 T1 T2 T3 T4 T5 T1 T2 T

31 Necrosis lenght (mm) Necrosis Lenght (mm) Susceptiblity of wound age % of Recovery % of Recovery Lasiodiplodia theobromae a A b A b A Neofusicoccum parvum Oct Nov Dec Jan Feb March a Lasiodiplodia theobromae Fungal species were not re-isolated 1 inch below end of necrosis c B c B Susceptibility of wound age-cabernet Sauvignon Neofusicoccum parvum b C Oct Nov Dec Jan Feb March b d C d D Lasiodiplodia theobromae Neofusicoccum parvum Oct Nov Dec Jan Feb March A a B a B C Lasiodiplodia theobromae Neofusicoccum parvum Oct Nov Dec Jan Feb March

32 Pathogen Biology and Disease Epidemiology Disease is more severe when vines are water stressed Cane pruned vines generally have less disease Heavy disease one year will result in more disease the next year All produce fruiting bodies that overwinter on the vine or vine parts All canker pathogens release spores during rainfall Pruning wounds are the main infection ports

33 Cultural Control Cultural Retraining from cordon or trunk Late pruning Mid to late February-early March Wounds less susceptible Inoculum decreased Wound healing is faster Double pruning (Weber et al Am. J. Enol. Vitic. 58:61-66) First pruning done with tractor mounted rotary saw Second pruning done in late winter ( Feb-early March) Allows large acreage to be pruned late due to speed of second pruning Excellent efficiency & economics Should give at least 90-95% control

34 Control Double pruning or late pruning has been shown to be effective in significantly reducing infection by: Eutypa spp., Phaeo spp., and Botryosphaeriaceae spp. B-LOCK Vitiseal Spur Shield Currently Rally and Topsin M registered for tractor application Recommend Rally + Topsin in tank with non-ionic spreader i.e. Freeway/Pentra Bark Tank mix fights resistance development Application by machine is relatively fast and highly effective in control Topsin M and Rally have been shown to be a good pruning wound protectants against Botryosphaeriaceae, Eutypa lata (Diatrypaceous), Pal and Pc infection

35 Effective Products Against Canker Pathogens DMI s- some have activity against Eutypa (Rally, 2X) Benzimidazole- Excellent activity against all pathogens (Topsin M, 2X) B- excellent activity against Eutypa (B-LOCK, 1X) Vitiseal with or w/o Rally + Topsin M Paint 1X Spray (1: 9 dilution)1x Biological s- good activity if applied 2 weeks before infection (Trichoderma, Cladosporium) New product being tested

36 Vitiseal wet

37 Vitiseal dry

38

39 Fungicide Application

40

41

42

43

44 Take Home Prune late in winter Treat all pruning wounds before rain Use products shown to stop all pathogens as wound treatment Spraying results in better coverage than painting or dobbing Understand disease epidemiology Pathogens overwinter on infected grape wood Spores are released with rain, sprinkler irrigation or fog Naked fungicides last only about 2 weeks then reapply Fungicides in Vitiseal last 3 months (other paint? ) Spur Shield

45 Thank you

46 Safecoat VitiSeal Natural waterborne co-polymer emulsion with other NOP (National Organic Program) approved ingredients. It is marketed as a unique crop management tool that creates a protective resistant barrier against the typical point of entry for wood canker disease pathogens including Eutypa, Botryosphaeria and Phaeo group. VitiSeal is applied either through painting, daubing or spraying directly over pruning cuts onto vines, trunks, and tree bases. The proprietary formulation is water based, environmentally safe containing no hazardous materials or HAPs (hazardous air pollutants), has no re-entry wait restrictions after treatment, and has been proven effective through multiple years of university research center testing. California Certified Organic Farms has been approving materials request forms for VitiSeal use by organic and biodynamic growers.

47 False Phomopsis

48 False Phomopsis Cladosporium Alternaria

49 False Phomopsis

50 Control Fungicides Retraining Double Pruning Late Pruning 90-95% disease control

51 Control of canker diseases Chemistry Vitiseal Topsin M Rally Spur Shield Retraining Jim Kissler Bob Sisson Double Pruning (Late Pruning) 90-95% disease control

Managing Canker Diseases in Grapevine

Managing Canker Diseases in Grapevine Managing Canker Diseases in Grapevine Doug Gubler Jose Urbez Torres Florent Trouillas Philippe Rolshausen Akif Eskalen Suzanne Rooney-Latham Ryan Herche Department of Plant Pathology UC Davis Fruiting

More information

Sustainable Ag Expo, Monterey, CA Doug Gubler, Department of Plant Pathology, University of California, Davis

Sustainable Ag Expo, Monterey, CA Doug Gubler, Department of Plant Pathology, University of California, Davis Sustainable Ag Expo, Monterey, CA Doug Gubler, Department of Plant Pathology, University of California, Davis Modern Day Fungal Management Powdery Mildew Botrytis bunch rot Canker Diseases Pathogen Biology:

More information

Control of Dieback, Caused by Eutypa lata, in Red Currant (Ribes rubrum) and Gooseberry (Ribes uva-crispa) in the Netherlands

Control of Dieback, Caused by Eutypa lata, in Red Currant (Ribes rubrum) and Gooseberry (Ribes uva-crispa) in the Netherlands Control of Dieback, Caused by Eutypa lata, in Red Currant (Ribes rubrum) and Gooseberry (Ribes uva-crispa) in the Netherlands M. Wenneker 1, P.A.H. van der Steeg 1, P. Vink 2, I.R. van Brouwershaven 3

More information

Presentation of grapevine trunk diseases and their impact on plant physiology

Presentation of grapevine trunk diseases and their impact on plant physiology Presentation of grapevine trunk diseases and their impact on plant physiology Florence FONTAINE University of Reims Champagne-Ardenne, France Peso da Réga, Portugal November 10 th, 2015 Background & Problematic

More information

California Agriculture

California Agriculture California Agriculture Volume 62, Number 4 2008 Page 161 Botryosphaeria-related dieback and control investigated in noncoastal California grapevines Lynn Epstein Sukhwinder Kaur Jean S. VanderGheynst Copyright

More information

Evaluation of lime sulfur and sulforix for control of Exobasidium and Phomopsis diseases of blueberry and vinifera wine grapes, respectively

Evaluation of lime sulfur and sulforix for control of Exobasidium and Phomopsis diseases of blueberry and vinifera wine grapes, respectively Evaluation of lime sulfur and sulforix for control of Exobasidium and Phomopsis diseases of blueberry and vinifera wine grapes, respectively Final report; Research proposal Grant 2014-10 Principal Investigators:

More information

Pear Scab in Oregon Symptoms, disease cycle and management

Pear Scab in Oregon Symptoms, disease cycle and management Pear Scab in Oregon Symptoms, disease cycle and management R.A. Spotts and S. Castagnoli EM 9003 May 2010 Introduction Pear scab is a disease of European and Asian pear. It has been an economic problem

More information

Cytospora canker management. Dr. Ramesh Pokharel Western Colorado Research Center Colorado State University

Cytospora canker management. Dr. Ramesh Pokharel Western Colorado Research Center Colorado State University Cytospora canker management Dr. Ramesh Pokharel Western Colorado Research Center Colorado State University No chemical is registered for Cytospora Captan 50wp; 2lbs/100 gal water Rovral 50wp; 2lb/100 gal

More information

ManaGTD FA1303 Sustainable control of Grapevine Trunk Diseases

ManaGTD FA1303 Sustainable control of Grapevine Trunk Diseases ManaGTD FA1303 Sustainable control of Grapevine Trunk Diseases WG1: Pathogen characterization, detection and epidemiology WG Leader: Cecilia Rego Instituto Superior de Agronomia University of Lisbon Lisbon,

More information

North San Joaquin Valley Almond Day

North San Joaquin Valley Almond Day North San Joaquin Valley Almond Day Sponsored by UC Cooperative Extension Coffee, donuts & snacks provided by: Yosemite Farm Credit Cumulative Chilling Hours Nov. 1, 2011 - January 30, 2012 2011-12 2010-11

More information

Etiology and Management of Limb Dieback of Figs in California

Etiology and Management of Limb Dieback of Figs in California Etiology and Management of Limb Dieback of Figs in California (new project, 2005) Themis J. Michailides, D. P. Morgan, D. Felts, and H. Reyes Sharp margins of cankered areas sporulation Objectives

More information

Citrus Disease ID and Control. Ben Faber UC Cooperative Extension

Citrus Disease ID and Control. Ben Faber UC Cooperative Extension Citrus Disease ID and Control Ben Faber UC Cooperative Extension bafaber@ucanr.edu Disease Biotic (Abiotic) ENVIRONMENT Predisposing TIME HOST Susceptible PATHOGEN Virulence ABIOTIC environmental factors

More information

Tree and Shrub Disease

Tree and Shrub Disease n t h r a A n t h r a c n o s e A number of different trees are affected by anthracnose disease. This fungal disease can cause severe leaf blighting and deformation, but in many cases the damage to the

More information

SMALL FRUIT DISEASES (Commercial)

SMALL FRUIT DISEASES (Commercial) SMALL FRUIT DISEASES (Commercial) Sherrie Smith and Jackie Lee GRAPES Dormant Eutypa Phomopsis Nu-Cop 50 DF Liquid lime-sulfur (hard to find) cupric hydroxide calcium polysulfides M1 M2 2 lb Rate depends

More information

2007 Powdery Mildew of Cantaloupe Fungicide Trial

2007 Powdery Mildew of Cantaloupe Fungicide Trial 2007 Powdery Mildew of Cantaloupe Fungicide Trial Michael Matheron and Martin Porchas, University of Arizona, Yuma Agricultural Center, Yuma, AZ 85364 This study was conducted at The University of Arizona,

More information

Trichoderma atroviride SC1 can prevent infections of Phaeoacremonium and Phaeomoniella in nurseries

Trichoderma atroviride SC1 can prevent infections of Phaeoacremonium and Phaeomoniella in nurseries Trichoderma atroviride SC1 can prevent infections of Phaeoacremonium and Phaeomoniella in nurseries Ilaria Pertot 1, Luca Pasini 1, Daniele Prodorutti 1, Andrea Nesler 1,2 Fondazione Edmund Mach 1, BiPA

More information

Fungicide control of Apple Scab 2014 field trial

Fungicide control of Apple Scab 2014 field trial Fungicide control of Apple Scab 2014 field trial W. Douglas Gubler and Trang T. Nguyen, Nicholas S. Morris and Lynn R. Wunderlich Department of Plant Pathology, University of California, Davis, CA 95616

More information

Conidia dispersal of Diplodia species in a French vineyard

Conidia dispersal of Diplodia species in a French vineyard Phytopathol. Mediterr. (29) 48, 4 Conidia dispersal of Diplodia species in a French vineyard PHILIPPE KUNTZMANN 1, STÉPHANIE VILLAUME 2 and CHRISTOPHE BERTSCH 3 1 Institut Français de la Vigne et du Vin

More information

Update on Black Leg Disease of Canola John Damicone, Extension Plant Pathologist

Update on Black Leg Disease of Canola John Damicone, Extension Plant Pathologist Entomology and Plant Pathology, Oklahoma State University 127 Noble Research Center, Stillwater, OK74078 405.744.5527 Vol. 10, No. 3 http://entoplp.okstate.edu/pddl/ Mar 3, 2011 Update on Black Leg Disease

More information

Investigation into the etiology of decline of Raywood ash in Northern California

Investigation into the etiology of decline of Raywood ash in Northern California Investigation into the etiology of decline of Raywood ash in Northern California Principal Investigator: Thomas R. Gordon Department of Plant Pathology, UC Davis, One Shields Ave., Davis, CA 95616 Report

More information

Final Report: Fungicide control of Powdery mildew of Cucurbit: 2015 field trial

Final Report: Fungicide control of Powdery mildew of Cucurbit: 2015 field trial Final Report: Fungicide control of Powdery mildew of Cucurbit: 2015 field trial W. Douglas Gubler, Trang T. Nguyen and Nicholas S. Morris Department of Plant Pathology, University of California, Davis,

More information

Nutrient Management in Subtropical Tree Crops. The avocado model

Nutrient Management in Subtropical Tree Crops. The avocado model Nutrient Management in Subtropical Tree Crops The avocado model Avocado Fertilization Tissue %Dry Wt New shoots 36 Leaves 40 Fruit 33 Small branches 38 < 1 in Small branches 55 1-2 in Scion trunk 48 Rootstock

More information

Dissemination of Botryosphaeriaceae conidia in vineyards in the semiarid Mediterranean climate of the Valparaíso Region of Chile

Dissemination of Botryosphaeriaceae conidia in vineyards in the semiarid Mediterranean climate of the Valparaíso Region of Chile Phytopathologia Mediterranea (15) 54, 2, 394 42 DOI: 1.1461/Phytopathol_Mediterr-1655 RESEARCH PAPERS - 9TH SPECIAL ISSUE ON GRAPEVINE TRUNK DISEASES Dissemination of Botryosphaeriaceae conidia in vineyards

More information

New Tools for an Old Foe: II. Powdery Mildew Management. USDA-Agriculture Research Service Horticulture Crops Research Laboratory Corvallis, Oregon

New Tools for an Old Foe: II. Powdery Mildew Management. USDA-Agriculture Research Service Horticulture Crops Research Laboratory Corvallis, Oregon New Tools for an Old Foe: II. Powdery Mildew Management USDA-Agriculture Research Service Horticulture Crops Research Laboratory Corvallis, Oregon It is not a question of whether or not you will have it.

More information

Research Update Meeting Pathological Highlights from 2007

Research Update Meeting Pathological Highlights from 2007 University of Massachusetts Amherst ScholarWorks@UMass Amherst Cranberry Station Extension meetings Cranberry Station Outreach and Public Service Activities 2008 Research Update Meeting 2008 - Pathological

More information

Marion Murray. USHA Annual Convention 2010

Marion Murray. USHA Annual Convention 2010 Marion Murray USHA Annual Convention 2010 What are Fungi? organisms that lack chlorophyll and obtain their food by living on other living or dead organisms reproduce by spores spread by wind, rain, insects,

More information

Predicting the Unpredictable: Disease Factors in Small Grain Production. Juliet M. Marshall. Idaho Falls and Aberdeen R&E Centers

Predicting the Unpredictable: Disease Factors in Small Grain Production. Juliet M. Marshall. Idaho Falls and Aberdeen R&E Centers Predicting the Unpredictable: Disease Factors in Small Grain Production Juliet M. Marshall Idaho Falls and Aberdeen R&E Centers Fusarium Head Blight Management History Disease first described in the U.S.

More information

Fungicide control of apple scab: 2012 field trial

Fungicide control of apple scab: 2012 field trial Fungicide control of apple scab: 2012 field trial Ian S. Bay, Lynn R. Wunderlich, Thien N. Nguyen, and W. Douglas Gubler Department of Plant Pathology, University of California, Davis, CA 95616 University

More information

Necrotic Leaf Blotch A disorder of Pacific Rose. Prepared by Ross Wilson AgFirst April 2016

Necrotic Leaf Blotch A disorder of Pacific Rose. Prepared by Ross Wilson AgFirst April 2016 Necrotic Leaf Blotch A disorder of Pacific Rose Prepared by Ross Wilson AgFirst April 2016 Introduction Pacific Rose suffer Necrotic Leaf Blotch (NLB) badly. The key is to minimise NLB is to: A. Avoid

More information

Managing Apple Scab Resistance and New Fungicide Updates

Managing Apple Scab Resistance and New Fungicide Updates Managing Apple Scab Resistance and New Fungicide Updates Mohammad University of Illinois babadoos@illinois.edu Apple Scab in Illinois Apple scab is caused by the fungus Venturia inaequalis) Scab is a common

More information

Hands-on identification of vegetable diseases: Roses

Hands-on identification of vegetable diseases: Roses Hands-on identification of vegetable diseases: Roses Theme: How to diagnose a specific disease from diseases or disorders with similar symptoms. Mathews Paret, Susannah Da Silva, Binoy Babu, Fanny Iriarte,

More information

12. ZINC - The Major Minor

12. ZINC - The Major Minor 12. ZINC - The Major Minor It is the opinion of many that after nitrogen, zinc is the most limiting nutrient toward achieving maximum crop yields. More and more zinc deficiencies are being reported - many

More information

report on PLANT DISEASE FUNGAL LEAF SPOTS OF BLACK WALNUT

report on PLANT DISEASE FUNGAL LEAF SPOTS OF BLACK WALNUT report on PLANT DISEASE RPD No. 600 1987 DEPARTMENT OF CROP SCIENCES UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN FUNGAL LEAF SPOTS OF BLACK WALNUT Several important fungal leaf spot diseases of black walnut

More information

C E R T I F I C A T E O F M O L D A N A L Y S I S

C E R T I F I C A T E O F M O L D A N A L Y S I S C E R T I F I C A T E O F M O L D A N A L Y S I S PREPARED FOR: A Plus Inspections of Texas Phone Number: (713) 249-2618 Email: paul@inspec4.net Test Location: Phil Homebuyer 123 Mold City Dr Houston,

More information

AP249 Biological control of apple powdery mildew. Shane Dullahide Queensland Department of Primary Industries

AP249 Biological control of apple powdery mildew. Shane Dullahide Queensland Department of Primary Industries AP249 Biological control of apple powdery mildew Shane Dullahide Queensland Department of Primary Industries AP249 This report is published by the Horticultural Research and Development Corporation to

More information

Mycosphaerella leaf spot and other fungal diseases in organic black currant production in Norway

Mycosphaerella leaf spot and other fungal diseases in organic black currant production in Norway Mycosphaerella leaf spot and other fungal diseases in organic black currant production in Norway Black currant diseases in Norway Black currant reversion virus Anthracnose (Drepanopeziza ribis) Mycosphaerella

More information

C e r t i f i c a t e o f m o l d A n a l y s i s

C e r t i f i c a t e o f m o l d A n a l y s i s 3 3 0 1 N.W. 5 5 t h S t., F t. L a u d e r d a l e, F L 3 3 3 0 9 3301 N.W. 55th St., Ft. Lauderdale, ( 8 0 0 ) 5FL 4 433309-8 1 5 6888-854-0477 C e r t i f i c a t e o f m o l d A n a l y s i s P R E

More information

HERE ARE SOME ANSWERS TO OUR CUSTOMERS MOST OFTEN ASKED QUESTIONS ABOUT Calcium-25

HERE ARE SOME ANSWERS TO OUR CUSTOMERS MOST OFTEN ASKED QUESTIONS ABOUT Calcium-25 HERE ARE SOME ANSWERS TO OUR CUSTOMERS MOST OFTEN ASKED QUESTIONS ABOUT Calcium-25 1. What is Calcium-25? See also Table of Contents pages (2013) Calcium-25 is a unique crop yield-enhancing supplement

More information

Tailoring an IPM program for Florida Pomegranates

Tailoring an IPM program for Florida Pomegranates Tailoring an IPM program for Florida Pomegranates 5th Annual Meeting of the Florida Pomegranate Association, Balm, FL September 30, 2016 Dr. Gary Vallad University of Florida Gulf Coast Research and Education

More information

From the. The Latest News from the California Avocado Industry. CAC s 40th year Read more on page 20

From the. The Latest News from the California Avocado Industry. CAC s 40th year Read more on page 20 Gr 2018 From the vewinter The Latest News from the California Avocado Industry CAC s 40th year Read more on page 20 Severity of Fusarium Dieback Shot Hole Borers Analyzed By: Shannon C. Lynch, Department

More information

Aphid Management on Head Lettuce Using Imidacloprid and Foliar Insecticides

Aphid Management on Head Lettuce Using Imidacloprid and Foliar Insecticides Aphid Management on Head Lettuce Using Imidacloprid and Foliar Insecticides John C. Palumbo, Yuma Agricultural Center In the production of desert lettuce, growers and PCAs have a several options for aphid

More information

Pathogen Information and Management

Pathogen Information and Management Pathogen Information and Management K.A. Cochran Assistant Professor & Extension Specialist Texas A&M University AgriLife Extension Dept. Plant Pathology & Microbiology What is plant disease? A disruption

More information

Lincoln University Digital Thesis

Lincoln University Digital Thesis Lincoln University Digital Thesis Copyright Statement The digital copy of this thesis is protected by the Copyright Act 1994 (New Zealand). This thesis may be consulted by you, provided you comply with

More information

Pesticide Safety Insecticides Update 2006

Pesticide Safety Insecticides Update 2006 University of Massachusetts Amherst ScholarWorks@UMass Amherst Cranberry Station Extension meetings Cranberry Station Outreach and Public Service Activities 2006 Pesticide Safety 2006 - Insecticides Update

More information

Outbreak of European brown rot on Montmorency tart cherry

Outbreak of European brown rot on Montmorency tart cherry Outbreak of European brown rot on Montmorency tart cherry George W. Sundin, Nikki L. Rothwell, Kim E. Lesniak, Cory A. Outwater, Tyre J. Proffer Michigan State University Plant Pathology and Northwest

More information

Nutrient Uptake Trial: Determination of Nutrient Uptake in Grapevines

Nutrient Uptake Trial: Determination of Nutrient Uptake in Grapevines Nutrient Uptake Trial: Determination of Nutrient Uptake in Grapevines Compiled for Murray Valley Winegrowers Inc. June 2015. In 2014, Pam Strange from SGS Australia compiled a preliminary report into a

More information

C e r t i f i c a te o f m o ld Ana l y s i s

C e r t i f i c a te o f m o ld Ana l y s i s 3 3 0 1 N.W. 5 5 th S t., F t. Lauderdale, FL 3 3 3 0 9 ( 8 8 8 ) 8 5 4-0 4 7 7 C e r t i f i c a te o f m o ld Ana l y s i s P R E PARED F O R : TLC Home Inspections Phone Number: (512) 900-2191 Email:

More information

Commercial Crop Production Fruit and Nuts - Pears

Commercial Crop Production Fruit and Nuts - Pears Table 1. Symptoms, source of inoculum and management of diseases of pears Disease Fire Blight (Erwinia amylovora) Symptoms: Affects blossoms, leaves, twigs and young fruit. Infected blossoms wilt suddenly

More information

The role of climate and topography in the development of Dothistroma septosporum. Crystal Braun, Kathy Lewis and Alex Woods.

The role of climate and topography in the development of Dothistroma septosporum. Crystal Braun, Kathy Lewis and Alex Woods. The role of climate and topography in the development of Dothistroma septosporum. Crystal Braun, Kathy Lewis and Alex Woods February 8, 2008 Outline Introduction Study 1: Effects of Climate Study 2: Effects

More information

Septoria spot of citrus and California orange exports to South Korea

Septoria spot of citrus and California orange exports to South Korea Septoria spot of citrus and California orange exports to South Korea Brief overview of a successful fruit certification and export program J. E. Adaskaveg, Professor Department of Plant Pathology and Microbiology

More information

Forest Pathology in New Zealand No. 19 (Second Edition 2007) Poplar anthracnose. A.G. Spiers (Revised by M.A. Dick)

Forest Pathology in New Zealand No. 19 (Second Edition 2007) Poplar anthracnose. A.G. Spiers (Revised by M.A. Dick) Forest Pathology in New Zealand No. 19 (Second Edition 2007) Poplar anthracnose A.G. Spiers (Revised by M.A. Dick) Causal organisms Marssonina brunnea (Ellis & Everhart) Magnus Marssonina castagnei (Desmazières

More information

test address: P R E PAR E D F OR : CalPro Inspection Group Phone Number: (800)

test address: P R E PAR E D F OR : CalPro Inspection Group Phone Number: (800) 3 3 0 1 N.W. 5 5 th S t., F t. Lauderdale, FL 3 3 3 0 9 ( 8 8 8 ) 8 5 4-0 4 7 7 prepared for: test address: CalPro Inspection Group 1234 Any Name St. Sacrameto, Ca 95835 C e r t i f i c a t e o f m o l

More information

Figure A. Cercospora leaf spot disease cycle.

Figure A. Cercospora leaf spot disease cycle. MANAGEMENT OF CERCOSPORA LEAF SPOT Barry J. Jacobsen, Nina K. Zidack and Ben Larson, Professor and Extension Specialist, Research Assistant Professor, and Graduate Research Assistant, Department of Plant

More information

Buran COMMERCIAL SOLUTION. GUARANTEE: Garlic powder 15% REGISTRATION NUMBER PEST CONTROL PRODUCTS ACT READ THE LABEL BEFORE USING

Buran COMMERCIAL SOLUTION. GUARANTEE: Garlic powder 15% REGISTRATION NUMBER PEST CONTROL PRODUCTS ACT READ THE LABEL BEFORE USING Buran Biological Fungicide for suppression or control of powdery mildew and suppression of scab in apple, crab apple and pear trees; and suppression of powdery mildew in grapevine, squash and cucumber

More information

Auburn University Study

Auburn University Study Auburn University Study Summary Nationwide Study at 21 locations in 12 states Comparative analysis of Sapphire, Palmetto, Raleigh and Floratam (at selected sites) Preliminary Results Sapphire Rated #1

More information

Brenna Aegerter UCCE San Joaquin County

Brenna Aegerter UCCE San Joaquin County Brenna Aegerter UCCE San Joaquin County Tomato Powdery Mildew Leveillula taurica (Oidiopsis sicula) Symptoms Symptoms Yellow spots (or not) Symptoms Yellow spots (or not) Powdery white sporulation (or

More information

Plant Water Relations: Irrigation Advice Directly From the Tree. Ken Shackel, UCD Plant Sciences August 4, 2009

Plant Water Relations: Irrigation Advice Directly From the Tree. Ken Shackel, UCD Plant Sciences August 4, 2009 Plant Water Relations: Irrigation Advice Directly From the Tree Ken Shackel, UCD Plant Sciences August 4, 2009 Evapo-transpiration (ET) Salisbury & Ross, Plant Physiology (1992) (100 microns) (100 microns)

More information

Powdery mildews of stone fruit crops. Ramesh Pokharel 1 and Harold Larsen 2

Powdery mildews of stone fruit crops. Ramesh Pokharel 1 and Harold Larsen 2 Powdery mildews of stone fruit crops Ramesh Pokharel 1 and Harold Larsen 2 Colorado grown fruits, especially peaches, are known for their quality. Major factors in enabling this high fruit quality are

More information

PLUM CURCULIO: MANAGEMENT ASSUMPTIONS

PLUM CURCULIO: MANAGEMENT ASSUMPTIONS Eastern NY IPM Training Orchard Pests Review: Biology, Monitoring, Management TREE FRUIT SYSTEMS ECOLOGY Factors contributing to the complexity of host/pest interactions in tree fruit systems: Fruit trees

More information

First order auto regression and simple regression models for prediction of grape powdery mildew in Northern Karnataka, India

First order auto regression and simple regression models for prediction of grape powdery mildew in Northern Karnataka, India Internat. J. Agric. Sci. Vol. No. June, : 4 4 First order auto regression and simple regression models for prediction of grape powdery mildew in Northern Karnataka, India D.S. ASWATHA NARAYANA* AND V.

More information

Nut Crop Nutrition Understanding the Principles to Optimize the Practices.

Nut Crop Nutrition Understanding the Principles to Optimize the Practices. Nut Crop Nutrition Understanding the Principles to Optimize the Practices. Fruit Growers Lab Conference Tulare, March 16, 2010 Bob Beede, UC Farm Advisor Kings County http://cekings.ucdavis.edu/ Nutrition

More information

Joe Connell UC Farm Advisor

Joe Connell UC Farm Advisor University of California Cooperative Extension Butte County Agriculture & Natural Resources CITRUS NOTES In This Issue: September 28, 2010 Citrus Growers Educational Seminar Auburn, CA, October 29 th Mandarin

More information

Mango Dieback and Gummosis in Sindh, Pakistan Caused by Lasiodiplodia theobromae

Mango Dieback and Gummosis in Sindh, Pakistan Caused by Lasiodiplodia theobromae 2004 Plant Management Network. Accepted for publication 16 January 2004. Published 2 March 2004. Mango Dieback and Gummosis in Sindh, Pakistan Caused by Lasiodiplodia theobromae Muhammad Ali Khanzada,

More information

Botryosphaeria spp. as grapevine trunk disease pathogens

Botryosphaeria spp. as grapevine trunk disease pathogens Phytopathol. Mediterr. (2006) 45, S43 S54 Botryosphaeria spp. as grapevine trunk disease pathogens JAN M. VAN NIEKERK 1, PAUL H. FOURIE 1, FRANCOIS HALLEEN 2 and PEDRO W. CROUS 1,3 1 Department of Plant

More information

2016 Pecan Disease Management Update. Jason Brock Dr. Katherine Stevenson Dr. Tim Brenneman UGA Dept. of Plant Pathology

2016 Pecan Disease Management Update. Jason Brock Dr. Katherine Stevenson Dr. Tim Brenneman UGA Dept. of Plant Pathology 2016 Pecan Disease Management Update Jason Brock Dr. Katherine Stevenson Dr. Tim Brenneman UGA Dept. of Plant Pathology Fungicide Use Survey 2016 PECAN FUNGICIDE SURVEY COUNTY: ACRES: A) TPTH (Tin) B)

More information

Timing of Occurrence of Claviceps purpurea Ascospores in Northeast Oregon

Timing of Occurrence of Claviceps purpurea Ascospores in Northeast Oregon 2010. Plant Management Network. This article is in the public domain. Accepted for publication 2 November 2010. Published. Timing of Occurrence of Claviceps purpurea Ascospores in Northeast Oregon Stephen

More information

Management Tips for Insects in Desert Vegetables. John C. Palumbo Yuma Ag Center

Management Tips for Insects in Desert Vegetables. John C. Palumbo Yuma Ag Center Management Tips for Insects in Desert Vegetables John C. Palumbo Yuma Ag Center NOAA: Calls for La Nina ~ this winter U. S. Seasonal Outlooks (December 21 - February 211) California and the Southwest:

More information

Eleven blackberry cultivar trial and varietal specific susceptibility to certain pathogens: Report to NABG Research Foundation

Eleven blackberry cultivar trial and varietal specific susceptibility to certain pathogens: Report to NABG Research Foundation Eleven blackberry cultivar trial and varietal specific susceptibility to certain pathogens: Report to NABG Research Foundation Part 1; Blackberry cultivar performance trial David Ouellette, Brian Lawrence

More information

Final Project Report to the NYS IPM Program, Agricultural IPM

Final Project Report to the NYS IPM Program, Agricultural IPM Final Project Report to the NYS IPM Program, Agricultural IPM 2003 2004. 1. Title: Controlling Powdery Mildew of Pumpkin Using Pre-existing Fungicide Scheduling Programs 2. Project Leader(s): Tyrone W.

More information

Asian citrus psyllid (Diaphorina citri Kuwayama) and citrus greening disease: Understanding the vector-pathogen interaction for disease management

Asian citrus psyllid (Diaphorina citri Kuwayama) and citrus greening disease: Understanding the vector-pathogen interaction for disease management Asian citrus psyllid (Diaphorina citri Kuwayama) and citrus greening disease: Understanding the vector-pathogen interaction for disease management Michael E. Rogers, Timothy A. Ebert, Rosana H. Serikawa,

More information

Important Foliar & Viral Diseases in Sugarbeet

Important Foliar & Viral Diseases in Sugarbeet Important Foliar & Viral Diseases in Sugarbeet by Jessica Rupp, Ph.D., MSU Extension Plant Pathologist; and Barry Jacobsen, PhD, MSU Professor Emeritus MontGuide Sugarbeets are an important crop in Montana.

More information

Fungicide control of Pear Scab: 2014 field trial

Fungicide control of Pear Scab: 2014 field trial Fungicide control of Pear Scab: 2014 field trial W. Douglas Gubler, Trang T. Nguyen, Nicholas S. Morris and Rachel B. Elkins Department of Plant Pathology, University of California, Davis, CA 95616 University

More information

Commercial Crop Production Fruit and Nut Crops - Apple

Commercial Crop Production Fruit and Nut Crops - Apple Integrated Apple anagement any diseases commonly occur on apple, which can reduce flowering and the quality of the fruit in Louisiana. management depends largely on the care and attention that trees are

More information

Epidemiology of Gray Leaf Spot of Perennial Ryegrass Philip Harmon and Richard Latin. Objective

Epidemiology of Gray Leaf Spot of Perennial Ryegrass Philip Harmon and Richard Latin. Objective Epidemiology of Gray Leaf Spot of Perennial Ryegrass Philip Harmon and Richard Latin Objective Rationale The continuing objective of this research is to investigate the environmental factors that influence

More information

CERTIFICATE OF MOLD ANALYSIS

CERTIFICATE OF MOLD ANALYSIS CERTIFICATE OF MOLD ANALYSIS PREPARED FOR: Doc Shane Test Client Account Phone Number: (888) 854-0478 Email: docshane@inspectorlab.com Test Location: Max Headroom 1234 John Muir Street Hayward, CA 94544

More information

Plant Pathology Fact Sheet

Plant Pathology Fact Sheet Plant Pathology Fact Sheet PP-139 Cylindrocladium Black Rot (CBR) of Peanut, Soybean, and Forage Legumes in Florida Tom Kucharek, Professor and Extension Plant Pathologist, Plant Pathology Department,

More information

THE PEST NAGEME NT GUIDE

THE PEST NAGEME NT GUIDE THE PEST MANAGEMENT The Canola Pest Management GUIDE Guide Introduction Canola pest control starts here In this small but mighty guide, you ll find everything you need to correctly identify, scout and

More information

Scheduling copper applications and management of greasy spot and alternaria brown spot

Scheduling copper applications and management of greasy spot and alternaria brown spot Scheduling copper applications and management of greasy spot and alternaria brown spot M. Dewdney 1, C. Fraisse 2, T. Zortea 2, J. Yates 1 1 University of Florida, IFAS, Citrus Research and Education Center,

More information

Mobilize essential nutrients to areas of peak demand.

Mobilize essential nutrients to areas of peak demand. Mobilize essential nutrients to areas of peak demand. Utilize key nutrients at critical growth stages. Enhance plant metabolism and transport of nutrients. Increase plant cell integrity. Increase overall

More information

Coccidioidomycosis, aka Valley Fever

Coccidioidomycosis, aka Valley Fever Coccidioidomycosis, aka Valley Fever Presented to the California Partnership for the San Joaquin Valley June 15, 2018 Karen Haught, MD, MPH Public Health Officer Tulare County Public Health Coccidioidomycosis

More information

Cucurbit Downy Mildew Early Warning Scouting Program Project Report October 2007

Cucurbit Downy Mildew Early Warning Scouting Program Project Report October 2007 Cucurbit Downy Mildew Early Warning Scouting Program Project Report October 2007 Elaine Roddy, Vegetable Crops Specialist OMAFRA, Ridgetown During the summer of 2007, forty cucurbit fields across southwestern

More information

Introduction to Pecan Diseases and General Management

Introduction to Pecan Diseases and General Management Introduction to Pecan Diseases and General Management Original Presentation by Damon Smith/Jen Olson Modified and Presented by Jackie Lee Horticulture IPM Extension Specialist Little Rock, AR Contact Information

More information

Investigation into the etiology of decline of Raywood ash in Northern California

Investigation into the etiology of decline of Raywood ash in Northern California Investigation into the etiology of decline of Raywood ash in Northern California Principal Investigator: Thomas R. Gordon Department of Plant Pathology, UC Davis, One Shields Ave., Davis, CA 95616 Cooperating

More information

Commercial Crop Production Fruit and Nut Crops - Pecans

Commercial Crop Production Fruit and Nut Crops - Pecans Integrated Pecan anagement anagement of diseases and insects is essential for profitable pecan production in Louisiana. Commercial pecan producers must spray at the proper time with recommended fungicides

More information

Powdery Mildew, Scab, and Other Disease Control on Almond

Powdery Mildew, Scab, and Other Disease Control on Almond Powdery Mildew, Scab, and Other Disease Control on Almond Project No.: Project Leader: 08-PATH7-Holtz Brent A. Holtz Pomology Farm Advisor UCCE Madera County 328 S. Madera Avenue Madera, CA 93637 (559)

More information

Management of Hull Rot in Almond

Management of Hull Rot in Almond Management of Hull Rot in Almond Brent A. Holtz, Ph.D. Pomology Farm Advisor and County Director San Joaquin County UNIVERSITY OF CALIFORNIA HULL ROT MONILINIA FRUCTICOLA RHIZOPUS STOLONIFER Ten

More information

Fungicide control of apple scab: 2005 trial results

Fungicide control of apple scab: 2005 trial results Fungicide control of apple scab: 2005 trial results W. Douglas Gubler 1,3, Christopher N. Janousek 1, and Lynn Wunderlich 2 1Department of Plant Pathology, University of California, Davis, CA 95616 2 University

More information

Vegetable and Fruit Disease Update

Vegetable and Fruit Disease Update PowerPoint available at https://tiny.utk.edu/ag/vegandfruit Vegetable and Fruit Disease Update Steve Bost Extension Plant Pathologist University of Tennessee scbost@utk.edu Hot Topics from 2013 Botrytis

More information

DETECTION OF RESISTANCE IN POPULATIONS OF VENTURIA PIRINA

DETECTION OF RESISTANCE IN POPULATIONS OF VENTURIA PIRINA DETECTION OF RESISTANCE IN POPULATIONS OF VENTURIA PIRINA IN CALIFORNIA PEAR ORCHARDS AND IDENTIFICATION AND CONTROL OF PEAR CANKER DISEASES IN CALIFORNIA W. Douglas Gubler, Anna Erickson, Trang Nguyen,

More information

Powdery Mildew Curative Trial Presented by: Chris Herries,

Powdery Mildew Curative Trial Presented by: Chris Herries, Powdery Mildew Curative Trial 2014 Presented by: Chris Herries, OP s / Carbaryl (June 2013) What are growers using Cabrio + Spreadwet Lime Sulphur 1% Citrox (0.5%) Lime Sulphur 3% Citrox (1.5%) Nimbus

More information

Towards more sustainable use of pesticides on golf courses - Integrated disease management for turf

Towards more sustainable use of pesticides on golf courses - Integrated disease management for turf Towards more sustainable use of pesticides on golf courses - Integrated disease management for turf NGF Conference 23 November 2011 Simon Watson Technical Manager Turf & Landscape EAME Integrated Turf

More information

Integrated Disease Management Based on Cultivar Susceptibility

Integrated Disease Management Based on Cultivar Susceptibility Integrated Disease Management Based on Cultivar Susceptibility David S. Jones Graduate Student, University of Wisconsin - Madison Lots Of Unknowns for Cold-Climate Cultivars Cultivar BR DM PM Phom. Anthr.

More information

Annual Report Prepared for the California Pear Board

Annual Report Prepared for the California Pear Board Annual Report - 2013 Prepared for the California Pear Board Project Title: Project Leader: Cooperators: Acknowledgements: Evaluation of Postharvest Treatments for Management of Gray Mold,, and other Decays

More information

EPA Reg. No (Except California) REVISED USE DIRECTIONS FOR CREEPING BENTGRASS, PERENNIAL RYEGRASS AND BERMUDAGRASS

EPA Reg. No (Except California) REVISED USE DIRECTIONS FOR CREEPING BENTGRASS, PERENNIAL RYEGRASS AND BERMUDAGRASS Supplemental Label EPA Reg. No. 59639-136 (Except California) REVISED USE DIRECTIONS FOR CREEPING BENTGRASS, PERENNIAL RYEGRASS AND BERMUDAGRASS DIRECTIONS FOR USE It is a violation of Federal law to use

More information

Formulation Technology Dr. Murat Mertoglu Denmark, September 6, 2012

Formulation Technology Dr. Murat Mertoglu Denmark, September 6, 2012 Formulation Technology Dr. Murat Mertoglu Denmark, September 6, 2012 Outline Definition of formulation Formulation types Requirement of formulations Delivery of actives to target vs. formulation Exercise:

More information

Data Sheets on Quarantine Pests. Diaporthe vaccinii

Data Sheets on Quarantine Pests. Diaporthe vaccinii EPPO quarantine pest Prepared by CABI and EPPO for the EU under Contract 90/399003 Data Sheets on Quarantine Pests Diaporthe vaccinii IDENTITY Name: Diaporthe vaccinii Shear Anamorph: Phomopsis vaccinii

More information

Diplodia seriata, cause of black fruit rot in organically grown apples in Holland, Belgium and Northern Germany

Diplodia seriata, cause of black fruit rot in organically grown apples in Holland, Belgium and Northern Germany Diplodia seriata, cause of black fruit rot in organically grown apples in Holland, Belgium and Northern Germany Marc Trapman 1, Peter Maxin 2, Roland W. S. Weber 3,* 177 Abstract A fruit rot resembling

More information

Study of biology and epidemiology of Uncinula necator caused powdery mildew disease

Study of biology and epidemiology of Uncinula necator caused powdery mildew disease Technical Journal of Engineering and Applied Sciences Available online at www.tjeas.com 01 TJEAS Journal013/661 ISSN 01083 01 TJEAS Study of biology and epidemiology of Uncinula necator caused powdery

More information

Evaluation of DMI fungicides against species of Diplodia and Neofusicoccum associated with Botryosphaeria canker of grapevine

Evaluation of DMI fungicides against species of Diplodia and Neofusicoccum associated with Botryosphaeria canker of grapevine Cien. Inv. Agr. 40(1):131-138. 2013 www.rcia.uc.cl crop protection research paper Evaluation of DMI fungicides against species of Diplodia and Neofusicoccum associated with Botryosphaeria canker of grapevine

More information