Research Papers: Response of Soybeans and Populations of the Lance Nematode, Hoplolaimus columbus, to Fumigant Nematicides Applied at Planting

Abstract

Various rates of several fumigants were applied at planting to sandy loam soil in which soybeans were grown. No phytoxicity was observed. Highest yields occurred in plots treated with ethylene dibromide and in plots treated with the highest rate of D-D (65.01 l/ha). These plots also had better ratings, at the flowering and pod-fill stages of growth, for uniformity of stand, heights, and color. Lance nematode populations in soil and roots were better correlated with yield effects 11 weeks after treatment than after 8 weeks.

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