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Evaluation of Adjuvants and Co-Applied Pesticides on Onion Thrips Control, 1996

Evaluation of Adjuvants and Co-Applied Pesticides on Onion Thrips Control, 1996 Downloaded from https://academic.oup.com/amt/article-abstract/22/1/139/4640167 by DeepDyve user on 21 July 2020 Arthropod Management Tests, Vol. 22 139 6: VEGETABLE CROPS Mean no /Beat Sheet Mean no ./Beat Sheet First application Second application Treatment/ Rate Formulation Adults Larvae Adults Larvae amt (AI)/acre 62.50 ab Untreated Check 12.75 a 6.50 be 90.25 a Larvin 3.2F 0.41b. 8.25 ab 7.50 be 25.75 be 24.75 cde 4 oz. Azatin 3EC 8.75 ab 56.50 abc 4.50 c 90.00 a Thiodan 3EC 0.751b. 3.50 be 8.50 abc 30.25 be 3.00 e Provado 1.6FL 0.090 lb. 5.75 be 12.00 c ll.OOa b ll.OOde Provado 1.6FL 0.045 lb. 1.75 c 13.50 a 26.75 be 10.75 de Malathion 5EC 0.625 lb. 12.00 a 51.75 abc 7.50 be 56.50 abc 6.25 be 52.50 abc Orthene 755 0.5 lb. 7.75 be 72.00 ab Diazinon 4EC 0.251b. 5.50 be 44.50 abc 7.75 be 44.50 bed Lannate LV 2.4 0.045 lb. 6.25 be 92.00 a 7.00 be 88.75 a \san a 0.66EC 0.03 lb. 5.00 be 17.50 be 2.75 c 13.00 de Means in a column followed by the same letter are not significantly different (P = 0.05; mean separation based on DMRT). ONION: Allium cepa L. 'Mambo' Whitney Cranshaw (65E) Onion thrips; Thrips tabaci Lindeman Department of Bioagricultural Sciences and Pest Management Colorado State University Ft. Collins, C O 80523 Frank Schweissing Arkansas Valley Research Center 27901 Road 21 Rocky Ford, CO 81607 (970)491-6781 EVALUATION OF ADJUVANTS AND CO-APPLIED PESTICIDES ON ONION THRIPS CONTROL, 1996: The trial was conducted at i he Arkansas Valley Research Center in Rocky Ford, CO, on seeded onions (cv. Mambo) planted in double-row beds at 36-in centers. Plots consisted of a single row, 20-ft in length, and were arranged in a RC B design with three replications. Treatments were applied 8 Jul using a C0 compressed air sprayer delivering 24 gpa at 35 psi. Evaluations were made 16 Jul by counting all thrips on ten plants in the center of each plot. None of the adjuvants (Guardian, Kinetic, Cide-Kick) provided improved the control of onion thrips when used with the pyrethroid Warrior (lambda- i yalothrin). Co-application of Warrior with the fungicide Bravo 720 significantly reduced the control of onion thrips as compared with Warrior alone. Co- application with the bactericides Tenncop did not significantly reduce the thrips control below that obtained with Warrior alone. Treatment and rate/acre Mean no. thrips/plant Guardian 2.4 gal (10% v) 67.1 a Untreated Check 64.1 ab Bravo 720 3 pt + Warrior IE 0.015 lb (AI) 56.7 abc Guardian 2.4 gal/A + Warrior IE 0.015 lb (AI) 48.8 abed Champ Flowable 1.33 pt + Warrior 1E 0.015 lb (AI) 46.8 bed Kinetic 6 fl oz/A + Warrior IE 0.015 lb (AI) 39.0 cd Tenncop 3 pt + Warrior IE 0.015 lb (AI) 39.0 cd Warrior IE 0.015 lb (AI) 33.0 d Warrior 1E 0.02 lb (AI) 32.1 d Cide-Kick 1 pt + Warrior IE 0.015 lb (AI) 30.5 d Means within a column followed by the same letter are not significantly different (P = 0.05) by SNK test. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Evaluation of Adjuvants and Co-Applied Pesticides on Onion Thrips Control, 1996

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Publisher
Oxford University Press
Copyright
© 1997 Entomological Society of America.
eISSN
2155-9856
DOI
10.1093/amt/22.1.139
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Abstract

Downloaded from https://academic.oup.com/amt/article-abstract/22/1/139/4640167 by DeepDyve user on 21 July 2020 Arthropod Management Tests, Vol. 22 139 6: VEGETABLE CROPS Mean no /Beat Sheet Mean no ./Beat Sheet First application Second application Treatment/ Rate Formulation Adults Larvae Adults Larvae amt (AI)/acre 62.50 ab Untreated Check 12.75 a 6.50 be 90.25 a Larvin 3.2F 0.41b. 8.25 ab 7.50 be 25.75 be 24.75 cde 4 oz. Azatin 3EC 8.75 ab 56.50 abc 4.50 c 90.00 a Thiodan 3EC 0.751b. 3.50 be 8.50 abc 30.25 be 3.00 e Provado 1.6FL 0.090 lb. 5.75 be 12.00 c ll.OOa b ll.OOde Provado 1.6FL 0.045 lb. 1.75 c 13.50 a 26.75 be 10.75 de Malathion 5EC 0.625 lb. 12.00 a 51.75 abc 7.50 be 56.50 abc 6.25 be 52.50 abc Orthene 755 0.5 lb. 7.75 be 72.00 ab Diazinon 4EC 0.251b. 5.50 be 44.50 abc 7.75 be 44.50 bed Lannate LV 2.4 0.045 lb. 6.25 be 92.00 a 7.00 be 88.75 a \san a 0.66EC 0.03 lb. 5.00 be 17.50 be 2.75 c 13.00 de Means in a column followed by the same letter are not significantly different (P = 0.05; mean separation based on DMRT). ONION: Allium cepa L. 'Mambo' Whitney Cranshaw (65E) Onion thrips; Thrips tabaci Lindeman Department of Bioagricultural Sciences and Pest Management Colorado State University Ft. Collins, C O 80523 Frank Schweissing Arkansas Valley Research Center 27901 Road 21 Rocky Ford, CO 81607 (970)491-6781 EVALUATION OF ADJUVANTS AND CO-APPLIED PESTICIDES ON ONION THRIPS CONTROL, 1996: The trial was conducted at i he Arkansas Valley Research Center in Rocky Ford, CO, on seeded onions (cv. Mambo) planted in double-row beds at 36-in centers. Plots consisted of a single row, 20-ft in length, and were arranged in a RC B design with three replications. Treatments were applied 8 Jul using a C0 compressed air sprayer delivering 24 gpa at 35 psi. Evaluations were made 16 Jul by counting all thrips on ten plants in the center of each plot. None of the adjuvants (Guardian, Kinetic, Cide-Kick) provided improved the control of onion thrips when used with the pyrethroid Warrior (lambda- i yalothrin). Co-application of Warrior with the fungicide Bravo 720 significantly reduced the control of onion thrips as compared with Warrior alone. Co- application with the bactericides Tenncop did not significantly reduce the thrips control below that obtained with Warrior alone. Treatment and rate/acre Mean no. thrips/plant Guardian 2.4 gal (10% v) 67.1 a Untreated Check 64.1 ab Bravo 720 3 pt + Warrior IE 0.015 lb (AI) 56.7 abc Guardian 2.4 gal/A + Warrior IE 0.015 lb (AI) 48.8 abed Champ Flowable 1.33 pt + Warrior 1E 0.015 lb (AI) 46.8 bed Kinetic 6 fl oz/A + Warrior IE 0.015 lb (AI) 39.0 cd Tenncop 3 pt + Warrior IE 0.015 lb (AI) 39.0 cd Warrior IE 0.015 lb (AI) 33.0 d Warrior 1E 0.02 lb (AI) 32.1 d Cide-Kick 1 pt + Warrior IE 0.015 lb (AI) 30.5 d Means within a column followed by the same letter are not significantly different (P = 0.05) by SNK test.

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 1997

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