Effect of host plant and saprophytic soil fungi on population size of Globodera rostochiensis (Woll.) Behrens

摘要

We studied the possible effects of host plants (potato, cv. Mila, and tomato, ev. Ika) and saprophytic fungi (Stachybotrys chartarum and Penicillium frequentans) oil population size of the golden nematode, Globodera rostochiensis. Coexistence of G. rostochiensis and the saprophytic fungi resulted in a significant reduction of the nematode population (reduced numbers of cysts, eggs, and juveniles). Also, differences were found between potato and tomato plants in relation to their suitability as host organisms for the nematodes. It was found that Population density of the nematodes in soil with potatoes was many times greater than that in soil with tomatoes. The study has demonstrated that both the nematode host plant and saprophytic soil fungi significantly influence population density of G. rostochiensis.