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EVALUATION OF SELECTED INSECTICIDES AGAINST BROWN STINK BUGS IN LARGE PLOTS, 2004

EVALUATION OF SELECTED INSECTICIDES AGAINST BROWN STINK BUGS IN LARGE PLOTS, 2004 (F63) SOYBEAN: Glycine max (L.), 'Asgrow 5501' EVALUATION OF SELECTED INSECTICIDES AGAINST BROWN STINK BUGS IN LARGE PLOTS, 2004 J.S. Bacheler Department of Entomology, Box 7613 North Carolina State Univ. Raleigh, NC 27695-7613 Phone: (919) 515- 8877 E-mail: jack_bacheler@ncsu.edu Dan W. Mott E-mail: dan_mott@ncsu.edu Brown stink bug (BSB): Euschistus servus (Say) Narrow row (7.5-inch) soybean was planted into a Belhaven soil on 22 May with a Great Plains seed drill. Plots were 320 ft by approximately 0.75 miles arranged in a RCB design replicated three times. The single insecticide spray was applied on 19 Aug with a Thrush fixed wing aircraft delivering 3 gpa at 30 psi. Five spray swaths of 65 ft each were used per plot. Five days after treatment, four sets of 25 sweeps (100 per plot; 300 per treatment) were taken with a standard 15-inch diameter sweep net for BSB adults and large nymphs. Data were analyzed using ANOVA and means were separated using an F-protected LSD (P ≤ 0.05). The percentage control was calculated by taking the mean level of BSB found in the each treatment, dividing that number by the number of BSB in the check, subtracting this number from 1, and multiplying by 100. All treatments performed better than the untreated check. Bidrin, at 94.6%, showed the best overall control of BSB that was also significantly greater than Karate Z, but not significantly better than Orthene or Mustang Max. Treatment/ Rate No. brown stink Percent control of formulation lb (AI)/acre bugs/100 sweeps BSB Karate Z 2.08CS 0.04 6.0b 53.85b Mustang Max 0.8E 0.0225 4.0bc 69.23ab Orthene 97SG 0.5 2.0bc 84.62ab Bidrin 8E 0.5 0.7c 94.61a Untreated check --- 13.0a 0.0c LSD (0.05) 4.19 34.60 Means within columns sharing the common letter are not significantly different (LSD; P > 0.05). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

EVALUATION OF SELECTED INSECTICIDES AGAINST BROWN STINK BUGS IN LARGE PLOTS, 2004

Arthropod Management Tests , Volume 30 (1) – Jan 1, 2005

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Oxford University Press
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© Published by Oxford University Press.
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2155-9856
DOI
10.1093/amt/30.1.F63
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Abstract

(F63) SOYBEAN: Glycine max (L.), 'Asgrow 5501' EVALUATION OF SELECTED INSECTICIDES AGAINST BROWN STINK BUGS IN LARGE PLOTS, 2004 J.S. Bacheler Department of Entomology, Box 7613 North Carolina State Univ. Raleigh, NC 27695-7613 Phone: (919) 515- 8877 E-mail: jack_bacheler@ncsu.edu Dan W. Mott E-mail: dan_mott@ncsu.edu Brown stink bug (BSB): Euschistus servus (Say) Narrow row (7.5-inch) soybean was planted into a Belhaven soil on 22 May with a Great Plains seed drill. Plots were 320 ft by approximately 0.75 miles arranged in a RCB design replicated three times. The single insecticide spray was applied on 19 Aug with a Thrush fixed wing aircraft delivering 3 gpa at 30 psi. Five spray swaths of 65 ft each were used per plot. Five days after treatment, four sets of 25 sweeps (100 per plot; 300 per treatment) were taken with a standard 15-inch diameter sweep net for BSB adults and large nymphs. Data were analyzed using ANOVA and means were separated using an F-protected LSD (P ≤ 0.05). The percentage control was calculated by taking the mean level of BSB found in the each treatment, dividing that number by the number of BSB in the check, subtracting this number from 1, and multiplying by 100. All treatments performed better than the untreated check. Bidrin, at 94.6%, showed the best overall control of BSB that was also significantly greater than Karate Z, but not significantly better than Orthene or Mustang Max. Treatment/ Rate No. brown stink Percent control of formulation lb (AI)/acre bugs/100 sweeps BSB Karate Z 2.08CS 0.04 6.0b 53.85b Mustang Max 0.8E 0.0225 4.0bc 69.23ab Orthene 97SG 0.5 2.0bc 84.62ab Bidrin 8E 0.5 0.7c 94.61a Untreated check --- 13.0a 0.0c LSD (0.05) 4.19 34.60 Means within columns sharing the common letter are not significantly different (LSD; P > 0.05).

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 2005

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