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ARS Home » Southeast Area » Tifton, Georgia » Crop Protection and Management Research » Research » Publications at this Location » Publication #130266
Title: COMPARISON OF NEMATICIDE EFFICACY IN STRIP-TILLAGE AND CONVENTIONAL TILLAGE COTTON

Author
item Davis, Richard
item BADER, M - UNIVERSITY OF GEORGIA
item KEMERAIT, R - UNIVERSITY OF GEORGIA
item JOST, P - UNIVERSITY OF GEORGIA
item MCNEILL, R - UNIVERSITY OF GEORGIA

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Abstract Only
Publication Acceptance Date: 1/15/2002
Publication Date: 1/31/2002
Citation: Davis, R.F., Bader, M.J., Kemerait, R.C., Jost, P., McNeill, R.D. 2002. Comparison of nematicide efficacy in strip-tillage and conventional tillage cotton [abstract]. Proceedings of the National Cotton Council Beltwide Cotton Conference. Paper No. 66.

Interpretive Summary:

Technical Abstract: Strip-tillage increases early-season soil organic matter and moisture, but decreases temperature, which may affect the efficacy of nematicides such as aldicarb (Temik) and 1,3-Dichloropropene (Telone II). To minimize phytotoxicity, the label for Telone II does not allow planting at the same time as fumigation. Hoplolaimus columbus is managed primarily with nematicides. The objectives of this study were to determine if H. columbu management in cotton with nematicides is affected by tillage, if tillage affects H. columbus populations, and if Telone II fumigation can be used effectively in strip-tilled cotton. A 2x4 factorial arrangement of treatments with six replications was used in a field in Midville, GA, naturally infested with H. columbus. One factor was tillage (conventional tillage or strip-tillage) and the other factor was nematicide treatment (3.0 gal/A Telone II at-planting plus 3.5 lbs/A Temik in furrow, 3.0 lbs/A Telone II 5-days before planting plus 3.5 lbs/A Temik in furrow, 3.5 lbs/A Temik in furrow, and 6.0 lbs/A Temik in furrow). Cotton was planted on 23 May and harvested on 17 Oct. Soil samples for nematode analysis were collected on 18 May, 29 Jun, and 4 Oct. The number of plants per foot of row was not affected by tillage method or nematicide treatment, including Telone II application at-planting. For each nematicide treatment, mid- season nematode populations were numerically lower in strip-tilled plots than in conventionally-tilled plots, but differences were not statistically significant (P<0.05) and numerical differences were not evident at harvest. Neither nematicide treatment or tillage method affected nematode population levels or cotton yield statistically, though yield was numerically higher in strip-tilled plots than in conventionally-tilled plots.