Control of Nematodes in Peanut and Soybean with Metam-Sodium

Abstract

The efficacy of Busan(?) 1020 (32.7% metam-sodium) for control of Meloidogyne arenaria in 'Florunner' peanut (Arachis hypogaea) was studied for 2 years in field experiments in southeast Alabama. Pre-plant in-row applications of Busan 1020 at rates of 93-280 L/ha resulted in increased yields. The relation between yield (Yp) in kg/ha and Busan 1020 application rates (x) in L/ha was (R=0.95**) according to the normal distribution equation: Yp=3371e, where z=(x-216)/(-191896). Busan 1020 treatments reduced numbers of M. arenaria juveniles in soil in a non-linear manner both years of the study. The effects of preplant applications of Busan 1020 on soybean (Glycine max) nematodes were studied for one year in a field in southwest Alabama. There was a linear relation (R=0.98**) between 'Ransom' soybean yield (Ys) in kg/ha and Busan 1020 rates in the range of 0-234 L/ha; the relation was: Ys=327.35+1.77x. Busan 1020 had no effect on juvenile populations of H. glycines in soil; however, applic