ABSTRACT

Telone II (1,3-dichloropropene) has been shown to be an effective soil fumigant for control of root knot nematodes (Meloidogyne incognita) in cotton when applied in the spring. However, if fall applications are as effective as spring applications for nematode control, the time-of-application window for growers would be expanded. Replicated strips of fall, spring and untreated checks (chiseled but no fumigant applied) were established to see if fall applications were as effective as spring applications. Fall applications were as effective as spring applications in reducing nematode populations until at least first cotton bloom. Yields also showed no significant difference between fall and spring applications of Telone II, and in both cases lint yields were higher than the unfumigated controls.