Open AccessAlfalfa Weevil Control, Missouri, 1986
Author(s) -
Wayne Bailey,
R. E. Munson
Publication year - 1987
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/12.1.162
Subject(s) - randomized block design , acre , weevil , zoology , mathematics , horticulture , environmental science , agronomy , biology
The trial was conducted on 18 Apr near Mount Vernon, MO on a 1-year old stand of alfalfa. Plots were 20 x 40 ft and arranged in a randomized complete block design with four replications. The alfalfa was ca. 10 inches tall at time of treatment with a temperature of 75° and 0-5 mph winds. Sprays were applied with a 20-ft spray boom, 8002 flat fan nozzles, and 50 mesh screens. Sprays were applied at 16.5 gal/acre and 20 lb/square inch. Measurable precipitation fell on 7 of the 28 days following treatment. Evaluations were conducted at 2.5, 7, 14, 21, and 28 days posttreatment by taking 20 (180 degree) sweeps with a 15-inch sweep net.
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