Open AccessEfficacy of Selected Commercial and Experimental Insecticides Against Late Season Populations of Beet Armyworm, Soybean Looper, and Tobacco Budworm, 1994
Author(s) -
J. B. Graves,
B. R. Leonard,
C. A. White
Publication year - 1995
Publication title -
arthropod management tests
Language(s) - English
Resource type - Journals
eISSN - 2155-9856
pISSN - 2155-9848
DOI - 10.1093/amt/20.1.197
Subject(s) - sprayer , acre , biology , beet armyworm , horticulture , agronomy , toxicology , mathematics , recombinant dna , biochemistry , gene , spodoptera
Three tests, each consisting of 4-5 insecticide treatments were replicated 4 times in a RCBD at the Macon Ridge Branch of the Northeast Research Station, Winnsboro, LA. Cotton was planted 1 Jul into plots 4 rows (40 inch centers) by 30 ft. Treatments for Tests 1, 2 and 3 were applied on 2, 13 and 14 Sep, respectively, with a high clearance sprayer calibrated to deliver 11.5 gal total spray/acre through Teejet X-8 hollow cone nozzles (2/row) at 46 psi. Treatment efficacy was determined by taking a 10 sweep (standard 15 inch diam net) sample from each plot. Sweep samples were usually taken 2, 4-5 and 6-7 DAT on rows 1, 2 or 3, respectively. The test areas received 0.20, 0.67 and 1.1 inches rainfall on 6, 15 and 16 Sep, respectively.
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