Disease Control on a Budget
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- Joseph Washington
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2 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.
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4 # TSW hits/plot
5 Best defense against TSW Resistant Variety Strip or No-Till Delay Planting Seeding Rate Thimet 20G
6 Resistant vs Susceptible Entries
7 Late Leaf Spot TUFRunner 297 Georgia-14N Hi Input, Ck, Standard
8 Fungicide inputs and reaction of Georgia-06G to late leaf spot Unsprayed Control Standard Program High-input Program
9 Fungicide inputs and reaction of Georgia-16HO to late leaf spot Unsprayed Control Standard Program High-input Program
10 Unsprayed Control Standard Program High-input Program
11 2017 GCREC Cultivar Study Late Leaf Spot % Def Peanut Cultivar Control Standard Hi-input Florida b-e 23 k-m 27 j-n FloRun ab 40 ijk 22 j-m FloRun a-e 12 m-p 21 k-n FloRun 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 ab 38 h-k 65 efg TURRunner a 43 f-i 42 f-i AU-NPL c-f 15 l-p 23 k-o
12 2017 GCREC Peanut Cultivar Study Peanut Cultivar Control Standard Hi-Input Florida j-m 5919 a-f 5425 d-i FloRun mn 5313 e-j 5792 b-g FloRun h-m 5758 b-g 5276 e-i FloRun 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 lm 5173 f-i 5024 g-j TURRunner n 5942 a-f 5632 b-h AU-NPL c-i 6309 a-d 5677 b-h
13 2017 PBU Peanut Cultivar Study Cultivar Yield Lb/A Cultivar Yield Lb/A Florida bcd Georgia-13M 5091 bcd FloRun a-d Georgia-14N 5666 a-d FloRun a-d Georgia-16HO 6673 a FloRun ab TUFRunner a-d Georgia-06G 6180 abc TUFRunner cd Georgia-09B 5385 a-d AU-NPL a-d
14 Peanut Cultivars Disease Resistant AU NPL 17 Georgia-12Y Georgia-14N Disease Susceptible FloRun 157 TUFRunner 297 TUFRunner 511
15 DuPont Fontelis Custodia
16 a. i. pydiflumetofen Adepidyn Carboxamide chemistry Miravis Duo = adepidyn + difenconazole Active against early and late leaf spot No white mold activity
17 2017 GC Syngenta Fungicide Study Fungicide Program Timing Leaf spot White mold Yield Bravo WS 1.5 pt 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, a-d 3.1 a-d 6597 a-d 1 2.5, e 1.5 cd 7341 a
18 BRAVO SUPPLIES WILL BE SHORT
19 Stretching Chlorothalonil Supplies Tank mix chlorothalonil w 0.75 to 1.0 pt/a with fl oz 2. Domark 2.5 fl oz 3. Muscle, Orius, 7.2 fl oz 4. 4 fl oz/a 5. Topsin 10 fl oz 6. 7 to 14 fl oz 6 fl oz/a 45 DAP (21d). Proline 5.7 fl oz IF Velum Total IF 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)
20 Chlorothalonil Replacements GC 2017 Program Timing Defoliation White mold Yield Echo pt d 1.5 de 4718 bcd Elast 15 fl oz 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 cd 2.0 cde 4496 d Mancozeb 2.0 lb 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, d 1.1 de 5414 a-d CuproFix Ultra 2 lb + Topsin 10 fl oz bc 5.0 b 4557 cd CuproFix Ultra 2 lb + Topsin 10 fl oz Mancozeb 2 lb + Muscle 7.2 fl oz 1,2, bc 2.7 be 5811 a Echo pt Fontelis 1 pt 1,2,6,7 3,4,5 23 d 2.1 cde 5620 ab
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22 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
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24 Yield lb/a C BC AB A Control AgLogic 15G Velum T Velum T + Propulse
25 Disease and Nematode Damage along with Yield as impacted by Rotation and Cultivar, 2017 % Defoliation 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 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 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 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
26 Continuous 1 Year 2 Year 3 Year 4 Year Yield lb/a C B A C B A A A A A B B D C B B A
27 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.
28 COMMENTS OR QUESTIONS
29 2017 GC Syngenta Fungicide Study Fungicide Program Timing Leaf spot White mold Yield Bravo WS 1.5 pt 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
30 2017 WGREC Peanut Cultivar Study Peanut Cultivar Leaf spot % Stem rot Yield Florida cd 2.6 abc 4503 def FloRun bc 3.3 abc 4583 c-f FloRun ab 6.0 a 4068 f FloRun 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 ab 2.4 bcd 5348 ab TUFRunner ab 3.1 abc 5480 a AU-NPL e 1.5 cd 5169 abc
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32 Georgia 16HO Georgia 14N Georgia 06G Georgia 09B AU NPL 17 TUFRunner 511 Florunner 331 TUFRunner 297
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