pnut pnut Peanut Science 0095-3679 0095-3679 American Peanut Research and Education Society 10.3146/i0095-3679-26-1-8 Articles Managing Nematodes, Fungal Diseases, and Thrips on Peanut with Pesticides and Crop Rotations of Bahiagrass, Corn, and Cotton1 A. W. Johnson *, N. A. Minton , T. B. Brenneman , G. W. Burton , A. K. Culbreath , G. J. Gascho , S. H. Baker , and W. C. Johnson III 2 Supervisory Res. Nematol., Res. Nematol. (retired) USDA-ARS; Prof., Univ. of Georgia; Res. Geneticist (retired), USDA-ARS; Prof., Prof., and Agric. Res. Sci., Univ. of Georgia; Res. Agron., USDA-ARS; Coastal Plain Exp. Stn., Tifton, GA 31793–0748

1Cooperative investigations of the USDA-ARS and Univ. of Georgia. All programs and services of the USDA-ARS and the Univ. of Georgia are offered on a nondiscriminatory basis without regard to race, color, national origin, religion, sex, age, marital status, or handicap.

 *Corresponding author (email: nemweeds@tifton.cpes.peachnet.edu). 1 1999 26 1 32 39 American Peanut Research and Education Society 1999 American Peanut Research and Education Society Abstract

The influences of bahiagrass, corn, and cotton in rotation with peanut and treatments with aldicarb, flutolanil, and aldicarb plus flutolanil on nematodes, thrips, diseases caused by soilborne fungal pathogens, and yield of peanut were studied for 3 yr. Peanut yields following either 1 or 2 yr of bahiagrass, corn, or cotton were higher than those of continuous peanut. Peanut yield was greatest in the aldicarb plus flutolanil treated plots (5270 kg/ha), intermediate where aldicarb (4060 kg/ha), or flutolanil (4597 kg/ha) was used without aldicarb, and least in untreated (3690 kg/ha) plots. Yield increases in response to cropping sequences and pesticide treatments resulted primarily from suppression of crop damage by Meloidogyne arenaria, Sclerotium rolfsii, Rhizoctonia solani, and Frankliniella spp. The data document the pest management benefits and yield response associated with using two widely grown agronomic crops (corn and cotton), an improved bahiagrass cultivar, and pesticide treatments in peanut production.

 Key Words Arachis hypogaea; , fungicide (flutolanil); , Gossypium hirsutum; , nematicide (aldicarb); , Paspalum notatum; , Rhizoctonia solani; , ring nematode (Criconemella ornata); , root-knot nematode (Meloidogyne arenaria); , Sclerotium rolfsii; , thrips (Frankliniella spp.); , Zea mays