Evaluation of Selected Insecticide Combinations Against Boll Worm/Tobacco Budworm in Louisiana, 1995 | Zendy

K. D. Torrey | Zendy; B. R. Leonard | Zendy; J. H. Fife | Zendy; J. B. Graves | Zendy

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Evaluation of Selected Insecticide Combinations Against Boll Worm/Tobacco Budworm in Louisiana, 1995

Author(s) -

K. D. Torrey,

B. R. Leonard,

J. H. Fife,

J. B. Graves

Publication year - 1996

Publication title -

arthropod management tests

Language(s) - English

Resource type - Journals

eISSN - 2155-9856

pISSN - 2155-9848

DOI - 10.1093/amt/21.1.271

Subject(s) - sprayer , biology , bollworm , toxicology , horticulture , weevil , agronomy , botany , larva

The efficacy of selected insecticides was evaluated against BW/TBW at the Macon Ridge location of the Northeast Research Station. Cotton seed was planted 12 Jun in plots consisting of 4 rows (40 inch centers) X 50 ft. Treatments were arranged in a RCB design and replicated 4 times. Applications were made with a high clearance sprayer calibrated to deliver 6 gpa through Teejet TX-8 hollow cone nozzles (2/row) at 46 psi. Insecticides were applied on 8, 11, 14, 18 Aug and 11 Sep. Treatments were evaluated by examining 50 flower buds (squares) per plot on 11, 14, 22 Aug for evidence of BW/TBW and boll weevil damage. Data reported for boll weevil represent a mean across all sample dates. The plots were mechanically harvested on 16 Oct to determine seed cotton yields. The test area was irrigated by an overhead sprinkler “as needed” during the season, but not within 48 h of treatment applications. Rainfall did not influence the effects of these treatments. Data were analyzed with ANOVA, and means were separated according to DMRT.

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