The principal nematode pathogens of soybean are Heterodera glycines Ichinohe, Meloidogyne incognita (Kofoid and White) Chitwood, M. javanica (Treub) Chitwood, and M. arenaria (Neal) Chitwood. Also injurious to soybean are Rotylenchulus reniformis Linford and Oliveira, Hoplolaimus columbus Sher, and Belonolaimus longicaudaius Rau. Lesser known potential pathogens include Pratylenchus spp. Tylenchorynchus claytoni Steiner, Paratrichodorus christiei (Allen) Siddiqi, and Xiphinema americanum Cobb. The most productive advance in nematode control on soybean has been the development of cultivars resistant to many of the important nematode species. In many instances, nematicidal treatments are required as a necessary or complementary means of control. Fumigant nematicides have generally been more effective than nonfumigant nematicides in comparative tests. Crop rotations are employed for the control of soybean cyst nematode and reniform nematode. The monoculture of cultivars resistant to the
