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Control of Aphids on Mustard, 1996

Control of Aphids on Mustard, 1996 Downloaded from https://academic.oup.com/amt/article-abstract/22/1/138/4640159 by DeepDyve user on 21 July 2020 138 Arthropod Management Tests, Vol. 22 E: VEGETABLE CROPS MUSTARD : Brassica campestris L. 'Savanah' J. V. Edelson and M. Peters (63Ei Turnip aphid (TA): Lipaphis erysimi (Kaltenbach) Oklahoma State Univ./WWAREC Diamondback moth (DBM); Plutella xylostella (L.) Lane, OK 74555 Cabbage looper (CL); Trichoplusia ni (Hiibner) (405) 889-7343 CONTRO L OF APHIDS ON MUSTARD, 1996: 'Savanah' cultivar mustard was direct seeded to plots in Apr at the Wes Watkins AREC, Lane OK. Seeds were planted in one row on raised beds on 36 inch centers with ca. 3 inches between plants in rows. The experimental design was a RCB with 4 replicates and 16 treatments. Insecticide applications were made on 15 and 24 May using a tractor mounted sprayer with 2 hollow cone nozzles (TXVS 26) per bed applying 40 gpa solution at 40 psi. Insect populations were surveyed on 28 May by counting insects on 3 plants per plot to determine treat ment effects. Aphid infestations were heavy during the trial and lepidopterous larvae infestations were moderate. Endosulfan, M-Pede, Neemix, Aphistar anc Provado provided significant reduction in aphid numbers compared to the untreated plots. All insecticides except methomyl, dimethoate, Capsyn, Aphis tar and Provado provided significant reductions in lepidoptera larval numbers in plots. Mean no./3 plants Treatment Rate" Aphids* Lepidoptera Carbaryl 2.0 6,193 a 2 f Permethrin 0.1 5,783 ab 5cde f Methomyl 0.9 5,284 ab lOab c Methoxychlor 1.75 3,073 ab 1 f Sabadilla 0.06 lb/20 ft 2,524 ab 5cde f Pyrenone 993 b 9 abed 12 oz Untreated Check 352c 12 ab Malathion 1.25 271 cd 4de f Dimethoate 0.25 114c d 14 a Naled 2.0 69 cd 2e f 63 cd Capsyn 5,000 CHU's 7 bedef Endosulfan 0.75 55 d 3de f M-Pede 2.5 oz/gal carrier 43 d 3e f Neemix 2 gal 41 de 3e f Aphistar 4 oz 9e f 7 bedef Provado 1.6 3.75 oz 7 f 8bcd e Means in a column with common letters are not significantly different at P = 0.1 ((Data were analyzed using SAS and means separated with LSD.) Aphid numbers were transformed for analysis using a log 10 transformation.) "Rates: listed as lb (AI)/acre unless otherwise stated. Aphid s were primarily turnip aphids. 'Lepidoptera larvae included diamondback moth and cabbage looper. MUSTARD : Brassica juncea Cosson R. Story, A. O. Ameen, and (64E) Yellowmargined leaf beetle; M. J. Murray Microtheca ochroloma Stal Dept. Entomology, LAES LSU Agric. Ctr. Baton Rouge, LA 70803 (504) 388-1833 F. Can Dept. Horticulture, LAES LSU Agric. Ctr. Baton Rouge, LA 70803 D. Ring LA Coop. Ext. Service LSU Agric. Ctr. Baton Rouge, LA 70803 CONTRO L OF YELLOWMARGINE D LEAF BEETLE ON MUSTARD, 1995: Insecticide treatments at labeled rates were applied on mus­ tard on 11 and 18 May 1995 at the Burden Research Plantation, Baton Rouge, LA . A C0 powered backpack sprayer calibrated to deliver 40 gpa at 30 psi through a spray boom with three nozzles was used. Experimental plots consisted of single rows (30 feet long, 4 feet wide) arranged in a RCB design with 4 replications. Insect counts were made with beat sheets (3X2) on 10 May and 17 May (pre-treatment counts) and 12 May and 19 May (post-treatment counts). Three samples were taken from each plot and the number of insects present of each species was recorded. Populations of the yellowmargined leaf beetle were extremely high, while other pest species such as the diamondback moth and aphids were too few to obtain meaningful data. The best treatments were Asana, Merit at both the low and high rates, and Thiodan. Azatin (a neem seed extract), Lannate and Orthene performed poorly. Diazinon, Malathion, and Larvin were intermediate in performance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Control of Aphids on Mustard, 1996

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

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Publisher
Oxford University Press
Copyright
© 1997 Entomological Society of America.
eISSN
2155-9856
DOI
10.1093/amt/22.1.138
Publisher site
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Abstract

Downloaded from https://academic.oup.com/amt/article-abstract/22/1/138/4640159 by DeepDyve user on 21 July 2020 138 Arthropod Management Tests, Vol. 22 E: VEGETABLE CROPS MUSTARD : Brassica campestris L. 'Savanah' J. V. Edelson and M. Peters (63Ei Turnip aphid (TA): Lipaphis erysimi (Kaltenbach) Oklahoma State Univ./WWAREC Diamondback moth (DBM); Plutella xylostella (L.) Lane, OK 74555 Cabbage looper (CL); Trichoplusia ni (Hiibner) (405) 889-7343 CONTRO L OF APHIDS ON MUSTARD, 1996: 'Savanah' cultivar mustard was direct seeded to plots in Apr at the Wes Watkins AREC, Lane OK. Seeds were planted in one row on raised beds on 36 inch centers with ca. 3 inches between plants in rows. The experimental design was a RCB with 4 replicates and 16 treatments. Insecticide applications were made on 15 and 24 May using a tractor mounted sprayer with 2 hollow cone nozzles (TXVS 26) per bed applying 40 gpa solution at 40 psi. Insect populations were surveyed on 28 May by counting insects on 3 plants per plot to determine treat ment effects. Aphid infestations were heavy during the trial and lepidopterous larvae infestations were moderate. Endosulfan, M-Pede, Neemix, Aphistar anc Provado provided significant reduction in aphid numbers compared to the untreated plots. All insecticides except methomyl, dimethoate, Capsyn, Aphis tar and Provado provided significant reductions in lepidoptera larval numbers in plots. Mean no./3 plants Treatment Rate" Aphids* Lepidoptera Carbaryl 2.0 6,193 a 2 f Permethrin 0.1 5,783 ab 5cde f Methomyl 0.9 5,284 ab lOab c Methoxychlor 1.75 3,073 ab 1 f Sabadilla 0.06 lb/20 ft 2,524 ab 5cde f Pyrenone 993 b 9 abed 12 oz Untreated Check 352c 12 ab Malathion 1.25 271 cd 4de f Dimethoate 0.25 114c d 14 a Naled 2.0 69 cd 2e f 63 cd Capsyn 5,000 CHU's 7 bedef Endosulfan 0.75 55 d 3de f M-Pede 2.5 oz/gal carrier 43 d 3e f Neemix 2 gal 41 de 3e f Aphistar 4 oz 9e f 7 bedef Provado 1.6 3.75 oz 7 f 8bcd e Means in a column with common letters are not significantly different at P = 0.1 ((Data were analyzed using SAS and means separated with LSD.) Aphid numbers were transformed for analysis using a log 10 transformation.) "Rates: listed as lb (AI)/acre unless otherwise stated. Aphid s were primarily turnip aphids. 'Lepidoptera larvae included diamondback moth and cabbage looper. MUSTARD : Brassica juncea Cosson R. Story, A. O. Ameen, and (64E) Yellowmargined leaf beetle; M. J. Murray Microtheca ochroloma Stal Dept. Entomology, LAES LSU Agric. Ctr. Baton Rouge, LA 70803 (504) 388-1833 F. Can Dept. Horticulture, LAES LSU Agric. Ctr. Baton Rouge, LA 70803 D. Ring LA Coop. Ext. Service LSU Agric. Ctr. Baton Rouge, LA 70803 CONTRO L OF YELLOWMARGINE D LEAF BEETLE ON MUSTARD, 1995: Insecticide treatments at labeled rates were applied on mus­ tard on 11 and 18 May 1995 at the Burden Research Plantation, Baton Rouge, LA . A C0 powered backpack sprayer calibrated to deliver 40 gpa at 30 psi through a spray boom with three nozzles was used. Experimental plots consisted of single rows (30 feet long, 4 feet wide) arranged in a RCB design with 4 replications. Insect counts were made with beat sheets (3X2) on 10 May and 17 May (pre-treatment counts) and 12 May and 19 May (post-treatment counts). Three samples were taken from each plot and the number of insects present of each species was recorded. Populations of the yellowmargined leaf beetle were extremely high, while other pest species such as the diamondback moth and aphids were too few to obtain meaningful data. The best treatments were Asana, Merit at both the low and high rates, and Thiodan. Azatin (a neem seed extract), Lannate and Orthene performed poorly. Diazinon, Malathion, and Larvin were intermediate in performance.

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 1997

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