EFFICIACY OF TRICHODERMA VIRIDEIU THE CONTROL OF ROOT LESION NEMATODES (PRATYLENCHUS THORN EI AND P. NEGLECTUS) AND DAGGER NEMATODES (XIPHINEMA INDEX MAD X. PACHTAICUM)IN TURKEY

摘要

The present study was carried out to determine the comparative efficacy of Trichoderma viride against Pratylenchus thornei, P. neglectus, Xiphinema index and X. pachtaicum species which are highly distributed in several plantations throughout the country. The efficacy studies were conducted in vitro and under greenhouse conditions. Near 100 individuals of each species were inoculated with spores of fungi at different doses (10", 106, 108 conidia/ml). In a greenhouse in vivo study spore cultures at the same dose were mixed with soil, eggplant seedlings were planted, and 100 individuals of each species were inoculated separately. In petri dishes all doses of Trichoderma viride were highly significant and gave a significant reduction (p<0.01) in in-vitro and decreased the population density of root lesion and Xiphinema spp. nematodes. 7". viride led to inhibit the nematode activity and movements in vitro during one week exposure and was very significant on root lesion nematodes (Pratylenchus thornei and P.neglectus) larvae than on adults. The same results were obtained in pot cultures. The effect of fungi is significantly risen parallel to an increase of the application dose and a higher effect was counted in 108 conidia/ml application.