Trials on Western Flower Thrips
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- Preston Brooks
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1 Trials on Western Flower Thrips Presented by Daniel Gilrein, Extension Entomologist Cornell Cooperative Extension of Suffolk County Long Island Horticultural Research and Extension Center Riverhead, NY
2 Thrips Injury and Tospovirus
3
4 WFT Control on Marigold with Foliar Sprays D. R. Smitley & T. W. Davis, MSU 27 Product AI Rate/1 gal NAI EC tolfenpyrad 21 oz NAI EC tolfenpyrad 14 oz BAS 35i 9.1% Fipronil 1.2 oz Tick-Ex EC M. anisopliae 29 oz Tick-Ex EC M. anisopliae 15 oz BYI SC spirotetramat 1.7 oz BYI SC spirotetramat 1.7 oz/1 pots* Mesurol 75W methiocarb.5 lb Conserve 1SC spinosad 6 oz Safari 2SG dinotefuran 8 oz DPX-E2Y % rynaxypyr/chlorantraniliprole 2 oz *drench
5 Control of WFT on Marigold Foliage D. R. Smitley and T. W. Davis, MSU 3 Tick-Ex thrips/5 lvs BAS35i Mesurol Tick-Ex 29oz TickEx 15oz Conserve 5 6/26 7/3 7/1 27: Smitley & Davis, MSU Sprays 6/27, 7/5 & 7/13/7; Tick-Ex also 7/23/7 1 reps/trt; 5 lvs/plant 7/17 7/24 7/31 8/7
6 Control of WFT on Marigold Foliage D. R. Smitley and T. W. Davis, MSU thrips/5 lvs Conserve Tolfen 21oz Tolfen 14oz Safari E2Y45 Conserve 6/26 7/3 7/1 7/17 7/24 7/31 8/7 27: Smitley & Davis, MSU Sprays 6/27 & 7/13/75; Conserve also 7/5/7 1 reps/trt; 5 lvs/plant
7 Control of WFT on Marigold Foliage thrips/5 lvs Drench BYI 833 BYI 833 drch Conserve 6/26 7/3 7/1 7/17 7/24 7/31 8/7 27: Smitley & Davis, MSU Sprays 6/27, 7/5 & 7/13/7; drench 6/27/7 1 reps/trt; 5 lvs/plant
8 Conclusions BAS 35i, tolfenpyrad both rates most effective, v. good to excellent control Mesurol still effective, Conserve somewhat BYI 833 spray perhaps some control but not much. Drench not effective at tested rate, timing Safari good to suppressive with 2 3 wk E2Y45, Tick-Ex not highly effective as tested
9 Control of WFT on Cut Gerbera with Sprays #1 % mortality c QRD4 1.3 * c QRD4.75 bc SP31 21 b SP31 32 a Conserve 6 c 27: R. Cloyd, Manhattan, KS 3-35 WFT/flower, adults:nymphs 9:1 5 reps; trt 5/12/7, eval. 5/19/7 *some marginal burn to petals
10 % mortality Control of WFT on Cut Gerbera day 6 day 9 c bc BYI833 2 with Sprays #2 c b BYI833 4 ab a b Pylon 5 Pylon 1 Conserve 6 a a a d c 27: R. Cloyd, Manhattan, KS 15-2 WFT/flower, adults:nymphs 9:1 5 reps; trt 6/5/7, eval. 6/11 and 6/14?/7
11 Control of WFT on Cut Gerbera b with Sprays #3 % mortality Safari 8 S162.6 S S Overture+Cap6 Conserve 6 Overture.6 Capsil6 MetaEC 15 MetaEC 29 H2O 27: R. Cloyd, Manhattan, KS 1-15 WFT/flower, adults:nymphs 9:1 a a a a cde cd def def 5 reps; trt 7/3/7, eval. 7/1/7 * bc * Wilting or petal tip necrosis * ef f
12 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension BYI-833 Celero 16WSG Celero 16WSG Conserve DPX-E2Y45 Flagship 25WG Flagship25WG Overture 35WP Overture 35WP Pylon 2SC Pylon 2SC S WP S WP Tolfenpyrad Tolfenpyrad TriStar + Capsil 1.7 fl oz 2 oz (Drench) 4 oz (Drench) 11 fl oz 2 fl oz 4 oz (Drench) 4 oz (Foliar) 8 oz 12 oz 5 fl oz 1 fl oz 8 oz 12 oz 14 fl oz 21 fl oz 3.4 oz + 11 fl oz
13 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension BYI833 Celero 2 D Celero 4 D Conserve 11 DPX-E2Y45 Flagship 4 D Flagship 4 F Overture 8 Overture 12 Pylon 5 Pylon 1 S S Tolfenpyrad 14 Tolfenpyrad 21
14 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension BYI833 Celero 2 D Celero 4 D Conserve 11 DPX-E2Y45 Flagship 4 D Flagship 4 F Overture 8 Overture 12 Pylon 5 Pylon 1 S S Tolfenpyrad 14 Tolfenpyrad 21
15 Control of WFT on Portulaca with Spray Treatments Scott Ludwig, TX Cooperative Extension Conserve 11 Overture 8 Overture 12 Pylon 5 Pylon 1 S S Tolfenpyrad 14 Tolfenpyrad DAT
16 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension 14 * Conserve 11 Overture 8 Overture : S. Ludwig, Overton, TX Sprays 6/11 & 6/25/7 6 plants (1 basket)/trt; 5 DAT *7 DAT: Overtures signif. dif from
17 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension 14 * Conserve 11 Pylon 5 Pylon 1 * : S. Ludwig, Overton, TX Sprays 6/11 & 6/25/7 6 plants (1 basket)/trt; 5 DAT *7 DAT: Pylons signif. dif from others 21 DAT: Pylon 5 signif. dif from Conserve &
18 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension 14 * Conserve 11 S S : S. Ludwig, Overton, TX Sprays 6/11 & 6/25/7 6 plants (1 basket)/trt; 5 DAT *7 DAT:both S1812 signif from
19 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension 14 * Conserve 11 Tolfenpyrad 14 Tolfenpyrad : S. Ludwig, Overton, TX Sprays 6/11 & 6/25/7 6 plants (1 basket)/trt; 5 DAT *7 DAT: both Tolfenpyrads signif from
20 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension 27: S. Ludwig, Overton, TX Sprays 6/11 & 6/25/7 6 plants (1 basket)/trt; DAT * BYI833 Conserve 11 DPX-E2Y45 Flagship 4 F TriStar+Cap Untreated *21 DAT: BYI signif from Conserve
21 Control of WFT on Portulaca with Spray and Drench Treatments Scott Ludwig, TX Cooperative Extension Celero 2 D Celero 4 D Conserve 11 Flagship 4 D : S. Ludwig, Overton, TX Drenches 6/11/7? 6 plants (1 basket)/trt; 5 DAT
22 Control of Immature WFT on Gerbera Foliage: Sprays Luis Cañas, OSU Pylon pyridalyl 35WP 12 Overture pyridalyl 35WP 8 Conserve SC Tolfenpyrad DAT 26: L. Cañas, OSU 6 plants/trt, 5 lvs/plant or 1 flower/plant Sprays 6/12 & 6/26, exc Pylon 6/12 & 6/19 Conserve, Pylon, tolfenpyrad signif effective Pyridalyls good at 7, 14, 21
23 Control of Immature WFT on Gerbera Foliage: Drenches Luis Cañas, OSU Celero 16 WSG Conserve SC Spirotetramat : L. Cañas, OSU 6 plants/trt, 5 lvs/plant or 1 flower/plant Drenches 6/12, Sprays 6/12 & 6/26 DAT Suppressive but Celero better at 7DAT
24 Control of Adult WFT on Gerbera Foliage: Sprays Luis Cañas, OSU Pylon pyridalyl 35WP Overture pyridalyl 35WP Conserve SC Tolfenpyrad : L. Cañas, OSU 6 plants/trt, 5 lvs/plant or 1 flower/plant Sprays 6/12 & 6/26, exc Pylon 6/12 & 6/19 DAT Conserve, Pylon, tolfenpyrad signif effective Pyridalyls OK but numbers low
25 Control of Adult WFT on Gerbera Foliage: Drenches Luis Cañas, OSU DAT Celero 16 WSG Conserve SC Spirotetramat 26: L. Cañas, OSU 6 plants/trt, 5 lvs/plant or 1 flower/plant Drenches 6/12, Sprays 6/12 & 6/26 Celero OK, both suppressive or less
26 Control of Adult WFT on Gerbera Flowers: Sprays Luis Cañas, OSU Pylon pyridalyl 35WP Overture pyridalyl 35WP Conserve SC Tolfenpyrad : L. Cañas, OSU 6 plants/trt, 5 lvs/plant or 1 flower/plant Sprays 6/12 & 6/26, exc Pylon 6/12 & 6/19 DAT Pylon OK at 7 DAT but not 35 DAT
27 Control of Adult WFT on Gerbera Flowers: Drenches Luis Cañas, OSU Celero 16 WSG Conserve SC Spirotetramat DAT
28 Control of Adult WFT on Gerbera Luis Cañas, OSU Conclusions Conserve (8 oz), Pylon (1), Tofenpyrad best sprays Pyridalyl looks good Drenches suppressive at best
29 Thrips Control in Chrysanthemum 22: R. Oetting, UGA 35 No. thrips scars/pot Pedestal 9oz Pedestal 6oz Pedestal/Avid* Pedestal 12oz Water Conserve Applications 2/4, 11, 18 22: R. D. Oetting, Griffin, GA *Pedestal 12oz/Avid 8oz/Avid 8oz/Pedestal 12oz
30
31 New thrips on Ficus benjamina: Gynaikothrips uzeli L. Osborne, IFAS^
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