Soybean Yield Losses Due to<i>Heterodera glycines</i>in Iowa

T. L. Niblack

Plant Disease · 1992 · 42 citations · 0 references

Concepts

Abstract

Natural field infestations of Heterodera glycines race 3 in Boone (central Iowa) and Hancock (north central) counties were used to investigate the effect of the nematode on soybean growth and seed yields in a 2-yr study. Iron deficiency chlorosis, brown stem rot, and Phytophthora rot cause soybean seed yield losses annually in Iowa and may occur in H. glycines-infested fields. Soybean cultivars with known reactions to each disease were chosen, and two plots of each cultivar were planted per replication - one treated with aldicarb for H. glycines control, and the other not treated (.)