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CONTROL OF THE DIAMONDBACK MOTH UNDER FIELD CONDITIONS, 2001

CONTROL OF THE DIAMONDBACK MOTH UNDER FIELD CONDITIONS, 2001 (E19) CABBAGE: Brassica oleracea capitata L., 'Gourmet' Dakshina R. Seal University of Florida-IFAS Tropical Research and Education Center Homestead, FL 33031 Diamondback moth (DBM): Plutella xylostella (L.) Transplants were set on 10 Jan at the Tropical Research and Education Center, Homestead, FL. Plots were two beds wide on 36-inch centers, 25 ft long, and separated by a 5-ft alley. Plants were spaced 18 inches within the rows. Treflan 4 E was incorporated 2 wk before planting. Treatments evaluated were: (1) Prolong at 1.0 lb/acre; (2) Mattch at 2.0 qt/acre; (3) Agree at 1.0 lb/acre; (4) Javelin at 1.0 lb/acre; (5) Javelin at 1.0 lb/acre in rotation with Agree at 1.0 lb/acre; (6) H04-1802-6419-2 at 0.5 lb/acre; (7) H04-1802-6419-5 at 0.5 lb/acre; (8) SpinTor at 7.0 oz/acre; (9) Crymax at 0.5 lb/acre; and (10) an untreated check. Each treatment was replicated four times in an RCB design. Treatments were applied at weekly intervals on four dates: 8, 15, and 22 Feb and 4 Mar. Spray applications of insecticides were made using a backpack sprayer with two D-4 hollow-cone nozzles per bed delivering 75 gpa at 30 psi. Five plants per plot were randomly selected and thoroughly inspected for small, medium, and large DBM larvae and pupae 24 h after each spray. To rate marketability, all cabbage heads in a plot were visually checked and rated on a scale ranging from 0 to 6 where 0 indicated the head with the worst feeding damage. All insecticides reduced DBM larvae of various forms (Tables 1-4). Prolong, Mattch, Agree, and Javelin did not differ significantly from the untreated check in reducing DBM larvae. H04-1802-6419-2 and H04-1802- 6419-5 provided significant reduction of small DBM larvae and were comparable to SpinTor and Crymax. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

CONTROL OF THE DIAMONDBACK MOTH UNDER FIELD CONDITIONS, 2001

Seal, Dakshina R.
Arthropod Management Tests , Volume 27 (1) – Jan 1, 2002
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Publisher
Oxford University Press
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© Published by Oxford University Press.
eISSN
2155-9856
DOI
10.1093/amt/27.1.E19
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Abstract

(E19) CABBAGE: Brassica oleracea capitata L., 'Gourmet' Dakshina R. Seal University of Florida-IFAS Tropical Research and Education Center Homestead, FL 33031 Diamondback moth (DBM): Plutella xylostella (L.) Transplants were set on 10 Jan at the Tropical Research and Education Center, Homestead, FL. Plots were two beds wide on 36-inch centers, 25 ft long, and separated by a 5-ft alley. Plants were spaced 18 inches within the rows. Treflan 4 E was incorporated 2 wk before planting. Treatments evaluated were: (1) Prolong at 1.0 lb/acre; (2) Mattch at 2.0 qt/acre; (3) Agree at 1.0 lb/acre; (4) Javelin at 1.0 lb/acre; (5) Javelin at 1.0 lb/acre in rotation with Agree at 1.0 lb/acre; (6) H04-1802-6419-2 at 0.5 lb/acre; (7) H04-1802-6419-5 at 0.5 lb/acre; (8) SpinTor at 7.0 oz/acre; (9) Crymax at 0.5 lb/acre; and (10) an untreated check. Each treatment was replicated four times in an RCB design. Treatments were applied at weekly intervals on four dates: 8, 15, and 22 Feb and 4 Mar. Spray applications of insecticides were made using a backpack sprayer with two D-4 hollow-cone nozzles per bed delivering 75 gpa at 30 psi. Five plants per plot were randomly selected and thoroughly inspected for small, medium, and large DBM larvae and pupae 24 h after each spray. To rate marketability, all cabbage heads in a plot were visually checked and rated on a scale ranging from 0 to 6 where 0 indicated the head with the worst feeding damage. All insecticides reduced DBM larvae of various forms (Tables 1-4). Prolong, Mattch, Agree, and Javelin did not differ significantly from the untreated check in reducing DBM larvae. H04-1802-6419-2 and H04-1802- 6419-5 provided significant reduction of small DBM larvae and were comparable to SpinTor and Crymax.

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Arthropod Management Tests – Oxford University Press

Published: Jan 1, 2002

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