Potato Solutions THE FOLIAR CROP PHASE

Potato Solutions THE FOLIAR CROP PHASE

The Syngenta Potato Portfolio (Seed crops only) * * Dovetail is now revoked and may only be applied up till 31 st July 2012

Reliable Blight Control Consistent Performance Outstanding Protection of New Growth Excellent Rainfastness

REVUS Timing

(Latest currently available)

Movement as leaf expands Strong & rapid bonding to waxy layer Filters into plant tissue Spreads locally with expanding leaf tissue Revus binds with the waxy layer of the leaf and slowly filters through the leaf tissue to the underside of the leaf, and with the leaf tissue as the leaf expands

Eurofins 2009 Rapid Growth Trial % Blight infection 100 90 80 70 60 50 40 30 20 Untreated cymoxinil+propamocarb 2.0 fenamidone+propamocarb HCL 2.0 cymoxinil+mzb 2.0 fluopicolide+propamocarb HCL1.6 benthiovalicarb+mzb1.6 cyazofamid REVUS 0.6 10 0 Treatments: Shirlan fb Above x 4 fb cymoxinil+mzb x 3 fb Shirlan X2

Excellent Rainfastness % Control 15 DAT 100 80 60 40 PPO Lelystad (H. Schepers) NL 0 mm 20 mm 40 mm 80 mm Simulated rain 1 hour after application REVUS cyazofamid fluopicolide + propamocarb HCL cymoxinil + mancozeb

Tried and Trusted... ZOOSPORE ACTIVITY Rosette to Desiccation GOOD FOLIAR BLIGHT CONTROL Ideal as part of Revus programme Quality product from trusted supplier

SHIRLAN - a faithful friend cymoxanil + MZB Programme Programme Untreated

Formulation Really Matters Eurofins 2009 % Infection SHIRLAN 0.3 GENERIC FLUAZINAMS 0.4 0.4 l/ha GENERIC fluazinam = 0.3l/ha SHIRLAN Note: Syngenta have not tested all the generic products available on the market

Shirlan vs Generic formulations Eurofins 2009 0.4 GENERICS at 0.4L/ha 0.27 0.3 FULL rate GENERIC fluazinam = ⅔ rds rate SHIRLAN if: 0.4 Generic = 0.3 Shirlan (allowing for trial variability) then: Generic = [0.3Shirlan] / 0.4 and Shirlan is 25% Better value for money! Note: Syngenta have not tested all the generic products available on the market

Alternaria A growing threat

Alternaria is difficult to identify Not all lesions with concentric rings can be considered to be Alternaria Concentric rings can occur as a result of the influence of environmental conditions on cell growth, such as: Ozone damage Sunny weather and/or busy roads Exacerbated by Boron deficiency Magnesium deficiency Zinc deficiency Manganese deficiency/toxicity Alternaria can infect on the back of all or any of these plant stresses Azoxystrobin helps promote plant health and can therefore help restrict Alternaria development following these issues

Fungicidal control of early blight in Germany in 2007 & 2008 450 400 UT 350 300 chlorothalonil AUDPC Area Under Disease Progression Curve 250 200 150 100 50 0 Treatment mancozeb azoxystrobin pyraclostrobin + boscalid fenamidone Slide reproduced by kind permission of SAC 15

Crop husbandry suggestions for Alternaria management On very susceptible varieties Alternaria management is very important Plant health is vital Crop nutrition levels should be carefully planned Nitrogen Manganese Magnesium Boron Zinc Build Alternaria strategy into your fungicide programme Mancozeb Azoxystrobin+chlorothalonil (Olympus* see SOLA details below) * OLYMPUS MAY BE APPLIED TO POTATOES UNDER A SPECIFIC OFF LABEL APPROVAL SEE FULL DETAILS ON THE CRD WEB-SITE AT https://secure.pesticides.gov.uk/offlabels/search.asp

Alternaria control guidelines 1 st OLYMPUS* application at/before flowering or when 1 st lesions observed. Note - control will be reduced once symptoms seen. Precautionary application on susceptible varieties will give best results. Maintain FULL blight programme 3 x 1.0 l/ha OLYMPUS* at 14 day intervals * OLYMPUS MAY BE APPLIED TO POTATOES UNDER A SPECIFIC OFF LABEL APPROVAL SEE FULL DETAILS ON THE CRD WEB-SITE AT https://secure.pesticides.gov.uk/offlabels/search.asp

APHID CONTROL

Insecticide Positioning Potatoes are more susceptible to virus infection at early stage of growth For best results maintain timely & robust foliar insecticide programme following ACTARA In-Furrow Protection against aphids from crop emergence Follow up foliar sprays to control aphids and minimise viruses * (Seed crops only) Maximum number of applications per crop: Plenum = 3; Hallmark Zeon = 4 * Dovetail is now revoked and may only be applied up till 31 st July 2012

If you would like more information or wish to discuss any of Syngenta s products further, please contact your local Syngenta Area Manager or ring 0800 169 6058