Efficacy Trials, 1988

Twenty plots measuring 20 by 20 ft with 6-ft alleys were established in a winter rapeseed field 10 May at Big Bear Ridge, Idaho, 10 miles south of Deary. Five treatments were replicated 4 times in a randomized complete block design, insecticide applications were made 13 Jun with a CO2-pressurized ba...

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Bibliographic Details
Published in:Insecticide and acaricide tests 1989-01, Vol.14 (1), p.266-266
Main Authors: McCaffrey, Joseph P., Rice, Marlin E., Harmon, Bradley L., Schoteko, Dennis J.
Format: Article
Language:English
Online Access:Get full text
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Summary:Twenty plots measuring 20 by 20 ft with 6-ft alleys were established in a winter rapeseed field 10 May at Big Bear Ridge, Idaho, 10 miles south of Deary. Five treatments were replicated 4 times in a randomized complete block design, insecticide applications were made 13 Jun with a CO2-pressurized backpack sprayer equipped with 80° fan nozzles on a 6-ft boom that delivered 54 gal/acre at 32 psi. At the time of treatment, the crop was 6 ft tall and in the late-flowering stage (5% blooms remaining), wind conditions were calm, and the ambient temperature was above 70°F. Plots were sampled 20 Jul by collecting 4 plants/plot. Plants were individually bagged and taken to the laboratory for examination. Two pods each from raceme number (beginning from the lowest on the plant) 1, 3, 5, and 7 were examined for CSW larval exit holes and CSW-damaged seeds.
ISSN:0276-3656
DOI:10.1093/iat/14.1.266