Efficacy of Soil Fumigants and Nonfumigants for Controlling Plant Nematodes and Increasing Yield of Snap Bean


  • H. L. Rhoades


Belonolaimus longicaudatus, Hoplalaimus galeatus, Meloidogyne incognita, Paratrichodorus christiei, EDB, EDB-Chloropicrin, Aldoxycarb, Carbofuran, Ethoprop, Fenamiphos, Oxamyl, Terbufos


In experiments conducted in 1982 and 1983, the soil fumigant ethylene dibromide (EDB), applied at 26.9 kg/ha in-the-row and 80.6 kg/ha broadcast gave excellent control of Benololaimus longicaudatus, Meloidogyne incognita, and Hoplolaimus galeatus, and significantly increased yields of snap bean. A combination of EDB + chloropicrin (EDB-CP) applied at in-row rates of 28.3 + 23.3 kg/ha and broadcast rates of 113.2 + 93.1 kg/ha also gave excellent control of these nematodes and increased yields significantly. In-row soil application rates of 2.24 kg/ha and 3.36 kg/ha of the nonfumigant nematicides aldoxycarb, carbofuran, ethoprop, fenamiphos, oxamyl, and terbufos also significantly increased bean yield. However, none of these materials controlled H. galeatus. Fenamiphos and oxamyl provided good control of B. longicaudatus and M. incognita; aldoxycarb and terbufos provided good control of B. longicaudatus but only moderate control of M. incognita; carbofuran and ethoprop provided only mo