Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Control of Thrips Tabaci on Cabbage, 1996

Control of Thrips Tabaci on Cabbage, 1996 Downloaded from https://academic.oup.com/amt/article-abstract/22/1/109/4640018 by DeepDyve user on 21 July 2020 E: VEGETABLE CROPS Arthropod Management Tests, Vol. 22 109 CABBAGE: Brassica oleracea capitata L. (29E) A. M. Shelton and W. T. Wilsey 'Atria' Department of Entomology Onion Thrips (OT); Thrips tabaci (L) NYS Agric. Expt. Station Geneva, NY 14456 (315)787-235 2 CONTROL OF THRIPS TABACI ON CABBAGE, 1996: Cabbage was transplanted on 27 Jun at the Vegetable Crops Research Farm near Geneva, NY. To increase populations of thrips, a 5-ft strip of oats was planted along the length of each side of the experimental area. Plots consisted of two 10-ft rows on 36-inch centers with 18-inch plant spacing. Treatments were replicated 4 times in an RCB design. A backpack sprayer with a one-row boom, having 3 nozzles per row with HC 12 hollow cone tips, and delivering 30 gpa at 40 psi and 2 mph, was used to apply weekly applications of each treatment. Javelin at 1.0 lb./acre was added to Admire and the check treatments to control Lepidoptera and insure readable plants at harvest. Silwet sticker- spreader was applied at 0.1 % v/v with all foliar treatments. Admire was applied only on 7 Jul. Metasystox-R treatments were applied only on 6, 13 and 20 Sep. Provado was applied only on 6, 13, 20, 26 Sep and 1 Oct. Other treatments were applied on 7, 14, 22, 30 Aug, 6, 13, 20, 26 Sep 1, 10 and 17 Oct. Harvest evaluations for thrips were made on 28 Oct. Evaluations for thrips damage were made by randomly selecting 2 mature heads per plot, cutting them in half along the core, and peeling back 10 layers. Each layer was assessed for the presence of thrips damage. For layers damaged, we used the average number of layers per two plants in a replicate and then analyzed these averages. Data were analyzed by a two-way ANOVA. Only Mustang at 0.0375 and 0.0451b. (AI)/acre, Warrior with Silwet or Bond sticker-spreaders at 0.015 lb. (AI)/acre and Admire at 1 pt./acre had significantly fewer layers damaged compared to the control or Metasystox-R at 3 pt./acre. Between treatments, Mustang at 0.045 lb. (AI)/acre and War­ rior with Silwet or Bond sticker-spreaders at 0.015 lb. (AI)/acre had significantly fewer layers damaged than Ambush at 0.1 lb. (AI)/acre. There were no significant differences between Mustang, Warrior and Metasystox-R at different rates. No phytotoxicity was observed in any of the treatments. (Also see Shelton et al. 1996 AM T 21:20E) Treatment Rate/acre Mean no. layer Mustang 1.5 EW 0.045 lb(AI) 0.00 Warrior 1 EC (Silwet) 0.015 lb(AI) 0.25 Warrior 1 E C (Bond) 0.015 lb(AI) 0.25 Mustang 1.5 EW 0.0375 lb(AI) 0.38 Admire 2f lp t 0.75 TD-2344 0.83 EC 0.035 lb(AI) 1.50 Carzol SP 1.5 1b 1.50 0.05 lb(AI) 1.63 Provado 1.6 F Metasystox R 2 EC 1.5pt 1.88 Ambush 2 EC 0.101b(AI) 2.38 Untreated Check 3.13 Metasystox-R 2 EC 3p t 3.38 LSD (/> = 0.05) 2.07 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Control of Thrips Tabaci on Cabbage, 1996

Arthropod Management Tests , Volume 22 (1) – Jan 1, 1997

Loading next page...
 
/lp/oxford-university-press/control-of-thrips-tabaci-on-cabbage-1996-NPAaLnZO0L
Publisher
Oxford University Press
Copyright
© 1997 Entomological Society of America.
eISSN
2155-9856
DOI
10.1093/amt/22.1.109
Publisher site
See Article on Publisher Site

Abstract

Downloaded from https://academic.oup.com/amt/article-abstract/22/1/109/4640018 by DeepDyve user on 21 July 2020 E: VEGETABLE CROPS Arthropod Management Tests, Vol. 22 109 CABBAGE: Brassica oleracea capitata L. (29E) A. M. Shelton and W. T. Wilsey 'Atria' Department of Entomology Onion Thrips (OT); Thrips tabaci (L) NYS Agric. Expt. Station Geneva, NY 14456 (315)787-235 2 CONTROL OF THRIPS TABACI ON CABBAGE, 1996: Cabbage was transplanted on 27 Jun at the Vegetable Crops Research Farm near Geneva, NY. To increase populations of thrips, a 5-ft strip of oats was planted along the length of each side of the experimental area. Plots consisted of two 10-ft rows on 36-inch centers with 18-inch plant spacing. Treatments were replicated 4 times in an RCB design. A backpack sprayer with a one-row boom, having 3 nozzles per row with HC 12 hollow cone tips, and delivering 30 gpa at 40 psi and 2 mph, was used to apply weekly applications of each treatment. Javelin at 1.0 lb./acre was added to Admire and the check treatments to control Lepidoptera and insure readable plants at harvest. Silwet sticker- spreader was applied at 0.1 % v/v with all foliar treatments. Admire was applied only on 7 Jul. Metasystox-R treatments were applied only on 6, 13 and 20 Sep. Provado was applied only on 6, 13, 20, 26 Sep and 1 Oct. Other treatments were applied on 7, 14, 22, 30 Aug, 6, 13, 20, 26 Sep 1, 10 and 17 Oct. Harvest evaluations for thrips were made on 28 Oct. Evaluations for thrips damage were made by randomly selecting 2 mature heads per plot, cutting them in half along the core, and peeling back 10 layers. Each layer was assessed for the presence of thrips damage. For layers damaged, we used the average number of layers per two plants in a replicate and then analyzed these averages. Data were analyzed by a two-way ANOVA. Only Mustang at 0.0375 and 0.0451b. (AI)/acre, Warrior with Silwet or Bond sticker-spreaders at 0.015 lb. (AI)/acre and Admire at 1 pt./acre had significantly fewer layers damaged compared to the control or Metasystox-R at 3 pt./acre. Between treatments, Mustang at 0.045 lb. (AI)/acre and War­ rior with Silwet or Bond sticker-spreaders at 0.015 lb. (AI)/acre had significantly fewer layers damaged than Ambush at 0.1 lb. (AI)/acre. There were no significant differences between Mustang, Warrior and Metasystox-R at different rates. No phytotoxicity was observed in any of the treatments. (Also see Shelton et al. 1996 AM T 21:20E) Treatment Rate/acre Mean no. layer Mustang 1.5 EW 0.045 lb(AI) 0.00 Warrior 1 EC (Silwet) 0.015 lb(AI) 0.25 Warrior 1 E C (Bond) 0.015 lb(AI) 0.25 Mustang 1.5 EW 0.0375 lb(AI) 0.38 Admire 2f lp t 0.75 TD-2344 0.83 EC 0.035 lb(AI) 1.50 Carzol SP 1.5 1b 1.50 0.05 lb(AI) 1.63 Provado 1.6 F Metasystox R 2 EC 1.5pt 1.88 Ambush 2 EC 0.101b(AI) 2.38 Untreated Check 3.13 Metasystox-R 2 EC 3p t 3.38 LSD (/> = 0.05) 2.07

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 1997

There are no references for this article.