| The effect of chemical insecticides, which are commonly used in the production of China chive(Allium tuberosum Rottle ex Spreng), on survival and infectivity of the entomopathogenic nematodes, Heterorhabditis bacteriophora H06 and Hindica LN2 were evaluated in this studyChemical insecticides were tested at recommended field concentration and 2-time of recommended field concentrationThe effect of interval between chemical insecticides and nematodes application on the infectivity of the nematodes was also evaluatedResults showed that beta-cypermethrin, triadimefon, dimetachlone and carbendazol, which had no effect on the survival and infectivity of the nematodes, could be applied normallyDichlorvos caused high mortality of the nematodes and could not apply together with the nematodesPhoxim, chlorpyrifos and emamectin benzoate had no effect on the survival of Hbacteriophora H06 and affected the survival of Hindica LN2, but had no effect on the infectivity of the two nematodesBoth nematodes could be released 10, 10, 20 days after phoxim, chlorpyrifos and emamectin benzoate application, respectively |
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