Soybean Response to a Planting-Time Application of Ethylene Dibromide in a Soil Infested with Meloidogyne incognita, M. arenaria, and Heterodera glycines.

A field study was conducted to evaluate one susceptible and six nematode-resistant soybean cultivars for their effects on seed yield, nematode populations, and response to a fumigant nematicide, ethylene dibromide. The soil was a sandy loam, and the field was infested with a mixture of Meloidogyne incognita, M. arenaria, and Heterodera glycines. Soybean cultivars significantly affected yield and juvenile numbers of Meloidogyne spp. but did not affect the H. glycinesjuvenile population. Fumigation increased yield and numbers of H. glycines juveniles, whereas the numbers of Meloidogyne spp. juveniles were decreased. The interaction between cultivars and fumigation treatment was significant for yield but not for nematode numbers.