Disease Control on a Budget Low Contract Prices. Fungicides for leaf spot and white mold account for 10 to 20% of total variable costs. Minimize disease control costs w/o jeopardizing yields.
14 2014 2015 2016 2017 12 # TSW hits/plot 10 8 6 4 2 0
Best defense against TSW Resistant Variety Strip or No-Till Delay Planting Seeding Rate Thimet 20G
Resistant vs Susceptible Entries
Late Leaf Spot TUFRunner 297 Georgia-14N Hi Input, Ck, Standard
Fungicide inputs and reaction of Georgia-06G to late leaf spot Unsprayed Control Standard Program High-input Program
Fungicide inputs and reaction of Georgia-16HO to late leaf spot Unsprayed Control Standard Program High-input Program
Unsprayed Control Standard Program High-input Program
2017 GCREC Cultivar Study Late Leaf Spot % Def Peanut Cultivar Control Standard Hi-input Florida 07 88 b-e 23 k-m 27 j-n FloRun 107 97 ab 40 ijk 22 j-m FloRun 157 89 a-e 12 m-p 21 k-n FloRun 331 95 abc 29 h-k 21 j-m Georgia-06G 88 b-e 11 nop 22 i-l Georgia-09B 62 e-h 10 op 12 m-p Georgia-13M 97 ab 69 d-g 66 efg Georgia-14N 90 a-d 10 p 12 m-p Georgia-16HO 93 ab 25 i-l 42 g-j TUFRunner 297 98 ab 38 h-k 65 efg TURRunner 511 99 a 43 f-i 42 f-i AU-NPL 17 72 c-f 15 l-p 23 k-o
2017 GCREC Peanut Cultivar Study Peanut Cultivar Control Standard Hi-Input Florida 07 4115 j-m 5919 a-f 5425 d-i FloRun 107 3670 mn 5313 e-j 5792 b-g FloRun 157 4244 h-m 5758 b-g 5276 e-i FloRun 331 4863 h-k 5772 b-g 6687 a Georgia-06G 4095 klm 6343 abc 6320 abc Georgia-09B 4691 i-l 5757 b-g 6687 a Georgia-13M 3659 mn 5793 b-g 5770 b-g Georgia-14N 4278 j-m 5712 b-h 6446 ab Georgia-16HO 4152 j-m 6114 a-e 6114 a-e TUFRunner 297 3934 lm 5173 f-i 5024 g-j TURRunner 511 2845 n 5942 a-f 5632 b-h AU-NPL 17 5540 c-i 6309 a-d 5677 b-h
2017 PBU Peanut Cultivar Study Cultivar Yield Lb/A Cultivar Yield Lb/A Florida 07 5161 bcd Georgia-13M 5091 bcd FloRun 107 5917 a-d Georgia-14N 5666 a-d FloRun 157 5460 a-d Georgia-16HO 6673 a FloRun 331 6274 ab TUFRunner 297 5375 a-d Georgia-06G 6180 abc TUFRunner 511 4807 cd Georgia-09B 5385 a-d AU-NPL 17 5660 a-d
Peanut Cultivars Disease Resistant AU NPL 17 Georgia-12Y Georgia-14N Disease Susceptible FloRun 157 TUFRunner 297 TUFRunner 511
DuPont Fontelis Custodia
a. i. pydiflumetofen Adepidyn Carboxamide chemistry Miravis Duo = adepidyn + difenconazole Active against early and late leaf spot No white mold activity
2017 GC Syngenta Fungicide Study Fungicide Program Timing Leaf spot White mold Yield Bravo WS 1.5 pt 1-7 24 cde 4.5 a 5552 e Bravo WS 1.5 pt Fontelis 1 pt Bravo WS 1.5 pt Muscle ADV 2 pt Bravo WS 1.5 pt + Elatus 7.3 oz Elatus 7.3 oz + Miravis 3.4 fl oz Bravo WS 1.5 pt Alto 5.5 fl oz + Bravo WS 1.5 pt Elatus 9.5 oz + Miravis 3.4 fl oz Bravo WS 1.5 pt Alto 5.5 fl oz + Bravo WS 1.5 pt Elatus 9.5 oz + Miravis 3.4 fl oz Bravo WS 1.5 pt Bravo WS 1.5 pt + Elatus 7.3 oz Elatus 7.3 oz + Miravis 3.4 fl oz Bravo WS 1.5 pt 1,2,6,7 3,4,5 16 cde 1.7 bcd 6484 a-d 1,2,7 3,4,5,6 42 abc 3.3 a-d 6048 de 1 2.5,4.5 6,7 3 e 1.0 d 7329 ab 1 2.5,4.5 6,7 5 e 1.7 bcd 7111 abc 1 3,5 7 39 a-d 3.1 a-d 6597 a-d 1 2.5,4.5 6.5 3 e 1.5 cd 7341 a
BRAVO SUPPLIES WILL BE SHORT
Stretching Chlorothalonil Supplies Tank mix chlorothalonil w 0.75 to 1.0 pt/a with. 1. Alto @ 5.5 fl oz 2. Domark 2.5 fl oz 3. Muscle, Orius, etc @ 7.2 fl oz 4. Quash @ 4 fl oz/a 5. Topsin M @ 10 fl oz 6. Topguard @ 7 to 14 fl oz Priaxor @ 6 fl oz/a 45 DAP (21d). Proline 5.7 fl oz IF Velum Total IF Absolute @ 3.5 fl oz/a for Spray 1 and 2 Muscle ADV 2 pt/a Elast 15 fl oz/a (+ Muscle or Custodia) Domark 5.25 to 6.9 fl oz/a for Spray 1 and 2 Mancozeb 2 lb + Topsin M 10 fl oz (+ Muscle)
Chlorothalonil Replacements GC 2017 Program Timing Defoliation White mold Yield Echo 720 1.5 pt 1-7 23 d 1.5 de 4718 bcd Elast 15 fl oz 1-7 69 b 3.7 b-e 5398 a-d Elast 15 fl oz Elast 15 fl oz + Custodia 15.5 fl oz 1,2,4,6,7 3,5 42 cd 1.0 e 5398 a-d Elast 15 fl oz Muscle ADV 1 qt 1.2.7 3-6 40 cd 2.0 cde 4496 d Mancozeb 2.0 lb 1-7 63 bc 3.8 bcd 4672 bcd Mancozeb 2.0 lb + Topsin 10 fl oz Mancozeb 2.0 lb + Muscle 7.2 fl oz 1,2,7 3-6 26 d 1.1 de 5414 a-d CuproFix Ultra 2 lb + Topsin 10 fl oz 1-7 58 bc 5.0 b 4557 cd CuproFix Ultra 2 lb + Topsin 10 fl oz Mancozeb 2 lb + Muscle 7.2 fl oz 1,2,7 3-6 59 bc 2.7 be 5811 a Echo 720 1.5 pt Fontelis 1 pt 1,2,6,7 3,4,5 23 d 2.1 cde 5620 ab
Abound 18.2 fl oz/a + Alto 5.5 fl oz/a Aris 21 to 30 fl oz/a Convoy 20 to 32 fl oz/a Custodia/ Azoxy Teb 15 fl oz/a Elatus 7.3 to 9.5 oz/a Fontelis 1 pt/a Headline SC 9 fl oz/a Muscle ADV 2 pt Muscle/Orius/ TebuStar 7.2 fl oz Priaxor 6 to 9 fl oz/a Propulse 13.7 fl oz Provost Opti 10.7 fl oz/a
Yield lb/a 4600 4400 4200 4000 3800 C BC AB A 3600 3400 Control AgLogic 15G Velum T Velum T + Propulse
Disease and Nematode Damage along with Yield as impacted by Rotation and Cultivar, 2017 % Defoliation 40 30 20 10 0 Leaf Spot Defoliation A AB ABC CDE FGH GH FGH DEF H EFG Cont. Pnut 1 Year Out 2 Year Out 3 Year Out 4 Year Out Hits/100 ft row 20 15 10 5 0 A White Mold Incidence A B BC B DE DE DE E CD Cont. Pnut 1 Year Out 2 Year Out 3 Year Out 4 Year Out GA09B GA14N GA09B GA14N Root and Pod Damage 5 4 3 2 1 0 Root-Knot Damage A A AB B B C D D CD D Cont. Pnut 1 Year Out 2 Year Out 3 Year Out 4 Year Out Yield lb/a 6000 5000 4000 3000 2000 Yield A AB C BC BC C BC D D D Cont. Pnut 1 Year Out 2 Year Out 3 Year Out 4 Year Out GA09B GA14N GA09B GA14N
Continuous 1 Year 2 Year 3 Year 4 Year Yield lb/a 6000 5500 5000 4500 4000 3500 3000 C B A C B A A A A A B B D C B B A 2500 2000 2014 2015 2016 2017
Disease Control on a Budget Rotate. Planting Date. Early Less leaf spot & more white mold and TSW. Late Less white mold and TSW & more leaf spot. Varieties Georgia-12Y and Georgia-14N in fields with high white mold risk. Georgia-16HO?, TUFRunner 297 and TUFRunner 511 have leaf spot issues. FloRun 157 and TUFRunner 511 have TSW issues. Georgia-14N for root knot fields. Twins vs Single Strip vs Conventional Till. Use Orthene or equivalent for thrips control. Generics for leaf spot and white mold control.
COMMENTS OR QUESTIONS
2017 GC Syngenta Fungicide Study Fungicide Program Timing Leaf spot White mold Yield Bravo WS 1.5 pt 1-7 24 cde 4.5 a 5552 e Bravo WS 1.5 pt Provost Opti 10.7 fl oz Bravo WS 1.5 pt Muscle ADV 2 pt Bravo WS 1.5 pt + Elatus 7.3 oz Elatus 7.3 oz + Miravis 3.4 fl oz Bravo WS 1.5 pt Alto 5.5 fl oz + Bravo WS 1.5 pt Elatus 9.5 oz + Miravis 3.4 fl oz Bravo WS 1.5 pt Alto 5.5 fl oz + Bravo WS 1.5 pt Bravo WS 1.5 pt Elatus 9.5 oz + Miravis 3.4 fl oz Alto 5.5 fl oz + Bravo WS 1.5 pt Bravo WS 1.5 pt Elatus 7.3 oz 1,2,7 3,4,5,6 53 ab 4.0 ab 6194 cde 1,2,7 3,4,5,6 42 abc 3.3 a-d 6048 de 1 2.5,4.5 6,7 3 e 1.0 d 7239 ab 1 2.5,4.5 6,7 5 e 1.7 bcd 7111 abc 1 2,7 3,5 35 a-d 1.3 cd 6217 cde 1,6 2,4,7 3,5 24 b-e 2.5 a-d 6270 cde
2017 WGREC Peanut Cultivar Study Peanut Cultivar Leaf spot % Stem rot Yield Florida 07 23 cd 2.6 abc 4503 def FloRun 107 30 bc 3.3 abc 4583 c-f FloRun 157 29 ab 6.0 a 4068 f FloRun 331 21 de 1.0 d 5372 ab Georgia-06G 20 de 3.6 ab 4977 a-d Georgia-09B 27 ab 4.9 ab 4895 ef Georgia-13M 30 ab 2.8 abc 4260 f Georgia-14N 19 de 0.8 d 4770 b-e Georgia-16HO 35 a 3.5 abc 5433 ab TUFRunner 297 34 ab 2.4 bcd 5348 ab TUFRunner 511 34 ab 3.1 abc 5480 a AU-NPL 17 15 e 1.5 cd 5169 abc
Georgia 16HO Georgia 14N Georgia 06G Georgia 09B AU NPL 17 TUFRunner 511 Florunner 331 TUFRunner 297