Arthropod Management Tests 2013, Vol. 38 doi: 10.4182/amt.2013.F41 (F41) COTTON: Gossypium hirsutum L., ‘Phytogen 375 WSRF’ EFFICACY OF TRANFORM INSECTICIDE IN COMBINATION WITH SELECTED SPRAY ADJUVANTS AGAINST TARNISHED PLANTBUGS ON COTTON, (TEST 6) 2011 Ben Von Kanel Department of Entomology and Plant Pathology Mississippi State University 121 Clay Lyle Building, Box 9775 Mississippi State, MS 39762 Phone: (662) 325-3195 Fax: (662) 325-8837 E-mail: firstname.lastname@example.org Angus L. Catchot E-mail: email@example.com Lucas N. Owen E-mail: firstname.lastname@example.org Joshua L. Jones E-mail: email@example.com Brian P. Adams E-mail: firstname.lastname@example.org William S. Scott E-mail: email@example.com Wes McPherson E-mail: firstname.lastname@example.org Dung Bao E-mail: email@example.com Jenny Bibb E-mail: firstname.lastname@example.org Kevin Lanford E-mail: email@example.com Tarnished plant bug (TCB): Lygus lineolaris (Palisot de Beauvois) On 11 Jul 2011, a foliar insecticide efficacy trial was conducted Stoneville, MS. Plot size was 4 rows by 40 ft long on 38 inch centers. Plots were arranged in a RCB with 4 replications. Insecticides were applied with a tractor-mounted sprayer calibrated to deliver 10.0 gpa at 60 psi through TX-6 Hollow Cone nozzles (2 per row). Nine spray adjuvants were evaluated in combination with Transform insecticide against the untreated control (UTC). Treatments were applied when tarnished plant bug density reached economic threshold. Plants were 48 inches tall and approximately in the second week of bloom. The first application was made on 11 Jul followed by a second application on18 Jul. There are two sample dates for each spray application; 4 DAT1), 7 DAT1, 4 DAT2, and a 7 DAT2. Two drop cloth samples of 5-row-ft each were taken for each plot on each sample date. Data was analyzed with ANOVA and means were separated using Fisher’s Protected LSD (P ≤ 0.05). All treatments had significantly fewer TPB nymphs at 4 DAT1 and 4 DAT2. There were no statistical differences among any treatments and the UTC at 7 DAT1. However at 7 DAT2, all treatments had significantly fewer TPB nymphs compared to the UTC, but were not significantly different from each other. 1 Arthropod Management Tests 2013, Vol. 38 doi: 10.4182/amt.2013.F41 Table 1. Average number of tarnished plant bugs/ 10 row ft Treatment Rate lb Formulation (AI)/Acre 4 DAT1 7 DAT1 4 DAT2 7 DAT2 Transform 50 WG 0.031 + Agridex 1% (v/v) 1.3b 3.3a 2.0b 0.0b Transform 50 WG 0.031 + Penetrator Plus 1 % (v/v) 1.8b 1.8a 1.0b 0.3b Transform 50 WG 0.031 + Induce 0.25% (v/v) 2.3b 2.5a 1.5b 0.0b Transform 50 WG 0.031 + Dyneamic 0.5% (v/v) 2.8b 3.8a 1.0b 1.0b Transform 50 WG 0.031 + Kinetic 0.25% (v/v) 3.0b 1.8a 2.8b 0.5b Transform 50 WG 0.031 + Dyne-A-Pak 1% (v/v) 1.8b 2.5a 0.8b 0.8b Transform 50 WG 0.031 Hyper-Active 0.25% (v/v) 3.3b 3.3a 0.5b 1.0b Transform 50 WG 0.031 + Coher 0.125 (v/v) 2.3b 3.0a 0.5b 0.8b Transform 50 WG 0.031 + Cide Winder 0.5% (v/v) 2.5b 2.3a 1.0b 0.5b Transform 50 WG 0.031 0.3b 2.5a 1.8b 0.3b Transform 50 WG 0.07 0.5b 3.5a 0.8b 0.3b Untreated Check 13.5a 6.3a 12.3a 3.3a LSD (0.05) 6.46 3.42 5.47 1.37 Means within a column sharing the same letter are not significantly different (LSD; P > 0.10).
Arthropod Management Tests – Oxford University Press
Published: Jan 1, 2013