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Performance of Selected Insecticides Against Stink Bugs Infesting Soybean 2, 2019

Performance of Selected Insecticides Against Stink Bugs Infesting Soybean 2, 2019 Soybean | Glycine max Green stink bug | Acrosternum hilare, southern green stink bug | Nezara viridula, brown stink bug | Euschistus servus, redbanded stink bug | Piezodorus guildinii acephate, bifenthrin, clothianidin, lambda-cyhalothrin, thiamethoxam, imidacloprid The performance of selected foliar insecticides treatments against stink bugs in soybean was evaluated at the Delta Research and Extension Center (Washington County). Soybean seed (Asgrow 45X8) were planted on a Sharkey clay soil on 2 July at a seeding rate of 117,612 seed/acre. Plot size was four rows (40 in centers) by 40 feet. Treatments were replicated four times in a RCB. Foliar insecticide treatments were applied on 18 September with a high-clearance sprayer with a compressed air spray system calibrated to deliver 10 gpa through TX-12 hollow cone nozzles (2/row) at 5 mph. Stink bug densities were determined by sampling one of the center two rows with a 15-in.-diameter sweep net. A sample consisted of 25 sweeps per plot. Because there was not one predominate species, counts for adults and nymphs of green stink bug, southern green stink bug, brown stink bug, and redbanded stink bug were pooled. Plots were sampled at 6 and 8 d after treatment (DAT). The same row in each plot was not sampled on consecutive sample dates. Data were subjected to ANOVA, and means separated according to Fisher’s protected least significant difference. All of the insecticide treatments reduced stink bug numbers compared with the untreated check at 6 DAT (Table 1). Also, Acephate plus Sniper, Endigo, and Sniper plus Belay resulted in fewer stink bugs than Belay or Warrior. At 8 DAT only Sniper plus Acephate, Acephate, Belay, Endigo, Sniper plus Belay, and Warrior reduced stink bug densities compared with the untreated check.1 Table 1. . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 Means within columns followed by a common letter are not significantly different (FPLSD, P = 0.05). alb form. per acre. bAdults plus nymphs of green, southern green, brown, and redbanded stink bug. cData log transformed, actual means presented. Open in new tab Table 1. . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 Means within columns followed by a common letter are not significantly different (FPLSD, P = 0.05). alb form. per acre. bAdults plus nymphs of green, southern green, brown, and redbanded stink bug. cData log transformed, actual means presented. Open in new tab Footnotes 1 This research was supported in part by industry gifts of pesticides, seed, and/or research funding and by the Mississippi Soybean Promotion Board. © The Author(s) 2022. Published by Oxford University Press on behalf of Entomological Society of America. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Performance of Selected Insecticides Against Stink Bugs Infesting Soybean 2, 2019

Cook, D R; Crow, W; Gore, J; Threet, M
Arthropod Management Tests , Volume 47 (1): 1 – Jan 1, 2022
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Publisher
Oxford University Press
Copyright
Copyright © 2023 Entomological Society of America
eISSN
2155-9856
DOI
10.1093/amt/tsac046
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Abstract

Soybean | Glycine max Green stink bug | Acrosternum hilare, southern green stink bug | Nezara viridula, brown stink bug | Euschistus servus, redbanded stink bug | Piezodorus guildinii acephate, bifenthrin, clothianidin, lambda-cyhalothrin, thiamethoxam, imidacloprid The performance of selected foliar insecticides treatments against stink bugs in soybean was evaluated at the Delta Research and Extension Center (Washington County). Soybean seed (Asgrow 45X8) were planted on a Sharkey clay soil on 2 July at a seeding rate of 117,612 seed/acre. Plot size was four rows (40 in centers) by 40 feet. Treatments were replicated four times in a RCB. Foliar insecticide treatments were applied on 18 September with a high-clearance sprayer with a compressed air spray system calibrated to deliver 10 gpa through TX-12 hollow cone nozzles (2/row) at 5 mph. Stink bug densities were determined by sampling one of the center two rows with a 15-in.-diameter sweep net. A sample consisted of 25 sweeps per plot. Because there was not one predominate species, counts for adults and nymphs of green stink bug, southern green stink bug, brown stink bug, and redbanded stink bug were pooled. Plots were sampled at 6 and 8 d after treatment (DAT). The same row in each plot was not sampled on consecutive sample dates. Data were subjected to ANOVA, and means separated according to Fisher’s protected least significant difference. All of the insecticide treatments reduced stink bug numbers compared with the untreated check at 6 DAT (Table 1). Also, Acephate plus Sniper, Endigo, and Sniper plus Belay resulted in fewer stink bugs than Belay or Warrior. At 8 DAT only Sniper plus Acephate, Acephate, Belay, Endigo, Sniper plus Belay, and Warrior reduced stink bug densities compared with the untreated check.1 Table 1. . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 Means within columns followed by a common letter are not significantly different (FPLSD, P = 0.05). alb form. per acre. bAdults plus nymphs of green, southern green, brown, and redbanded stink bug. cData log transformed, actual means presented. Open in new tab Table 1. . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 . Rate/acre . Total stink bugsb/25 sweeps . . Treatment . (fl oz product) . 6 DATc . 8 DATc . Acephate 90S + Sniper 2EC 0.83a + 6.4 0.2d 0.8d Acephate 90S 1.11a 1.9bc 1.1cd Sniper 2EC 6.4 1.8bc 5.1ab Belay 2.13EC 5.0 2.9b 1.6bcd Endigo ZCX 2.7CS 4.5 0.6cd 0.8d Sniper 2EC + Wrangler 4F 6.4 + 5.0 0.6cd 1.2cd Sniper 2EC+ Belay 2.13EC 6.4 + 1.5 2.0bc 4.2abc Warrior II 2.08CS 1.92 3.7b 1.5bcd Untreated Check — 14.9a 7.4a P > F <0.01 0.01 Means within columns followed by a common letter are not significantly different (FPLSD, P = 0.05). alb form. per acre. bAdults plus nymphs of green, southern green, brown, and redbanded stink bug. cData log transformed, actual means presented. Open in new tab Footnotes 1 This research was supported in part by industry gifts of pesticides, seed, and/or research funding and by the Mississippi Soybean Promotion Board. © The Author(s) 2022. Published by Oxford University Press on behalf of Entomological Society of America. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Arthropod Management Tests – Oxford University Press

Published: Jan 1, 2022

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