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CONTROL OF TARNISHED PLANT BUGS ON COTTON, 2002.

CONTROL OF TARNISHED PLANT BUGS ON COTTON, 2002. (F66) COTTON: Gossypium hirsutum L., 'DPL 451 BGRR' M. B. Layton Department of Entomology and Plant Pathology Mississippi State University Box 9775 Mississippi State, MS 39762 Tel: (662) 325-2085 Fax: (662)-325-8837 blayton@entomology.msstate.edu J. L. Long L. M. Green Tarnished plant bug (TPB): Lygus lineolaris (Palisot de Beauvois) Selected insecticides were evaluated for control of Tarnished plant bugs (TPB) in a commercial cotton field located in Sunflower County, MS. Treatments were replicated four times in a RCB design. Rows were planted on 38 inch spacing and each plot was 8 rows wide x 40 ft long. All treatments were applied on 5 Aug using a CO -powered backpack sprayer calibrated to deliver 9.5 gpa total volume at 40 psi through 8001 nozzles spaced 19 inch apart. The crop was in late bloom at this time and the crop canopy was open and conducive to good spray penetration. Treatments were evaluated at 3 and 7 DAT by randomly selecting 25 plants per plot and counting the number of plant bugs (adults or nymphs) present in the terminal, inside the bracts of large squares, or in blooms. Counts are expressed as number of TPB per 100 plants. Plant bug numbers in the check plots were well above the economic threshold of 15 bugs per 100 plants, providing an excellent opportunity to evaluate treatments. All treatments, except Trimax, provided significant reductions in nymph populations at both 3 and 7 DAT. Adult numbers were significantly reduced by all treatments at 7 DAT. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

CONTROL OF TARNISHED PLANT BUGS ON COTTON, 2002.

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Oxford University Press
Copyright
© Published by Oxford University Press.
eISSN
2155-9856
DOI
10.1093/amt/28.1.F66
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Abstract

(F66) COTTON: Gossypium hirsutum L., 'DPL 451 BGRR' M. B. Layton Department of Entomology and Plant Pathology Mississippi State University Box 9775 Mississippi State, MS 39762 Tel: (662) 325-2085 Fax: (662)-325-8837 blayton@entomology.msstate.edu J. L. Long L. M. Green Tarnished plant bug (TPB): Lygus lineolaris (Palisot de Beauvois) Selected insecticides were evaluated for control of Tarnished plant bugs (TPB) in a commercial cotton field located in Sunflower County, MS. Treatments were replicated four times in a RCB design. Rows were planted on 38 inch spacing and each plot was 8 rows wide x 40 ft long. All treatments were applied on 5 Aug using a CO -powered backpack sprayer calibrated to deliver 9.5 gpa total volume at 40 psi through 8001 nozzles spaced 19 inch apart. The crop was in late bloom at this time and the crop canopy was open and conducive to good spray penetration. Treatments were evaluated at 3 and 7 DAT by randomly selecting 25 plants per plot and counting the number of plant bugs (adults or nymphs) present in the terminal, inside the bracts of large squares, or in blooms. Counts are expressed as number of TPB per 100 plants. Plant bug numbers in the check plots were well above the economic threshold of 15 bugs per 100 plants, providing an excellent opportunity to evaluate treatments. All treatments, except Trimax, provided significant reductions in nymph populations at both 3 and 7 DAT. Adult numbers were significantly reduced by all treatments at 7 DAT.

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 2003

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