Effect of Certain Environmental Factors and Host Plants on Reproduction of Hoplolaimus galeatus. M. Ahmad, Graduate Student, Department of Plant Pathology, New Jersey Agricultural Experiment Station, Rutgers University, New Brunswick, NJ 08903. T. A. Chen, Professor, Department of Plant Pathology, New Jersey Agricultural Experiment Station, Rutgers University, New Brunswick, NJ 08903. Plant Dis. 64:479-480. Copyright 1980 American Phytopathological Society. DOI: 10.1094/PD-64-479.

The effects of soil texture and host plants on the reproduction of Hoplolaimus galeatus were investigated under greenhouse conditions. A three-way interaction among soil, crop, and pH existed. Sandy loam soil was more suitable for nematode reproduction than silty loam or loamy sand soil. The pH effect varied with the host plant; population increases were greatest at pH 7 for bean and pH 5 for barley. The rate of reproduction of H. galeatus was significantly higher on rye, barley, wheat, oats, soybean, corn, cabbage, and bean than on pepper, eggplant, lettuce, tobacco, and pea.