Metal-metal interactions in biological systems. Part VI. Effect of some metal ions on mortality, pathogenicity and reproductivity of Steinernema carpocapsae and Heterorhabditis bacteriophora entomopathogenic nematodes under laboratory conditions

Effect of Li, Al, Cd, Cu(II), Mn(II), Pb(II), Se(IV) and Zn on entomopathog enic nematodes S. carpocapsae and H. bacteriophora mortality, pathogenicity , and productivity was studied under laboratory conditions. These ions were administered as the sole ions as well as in the Li-Al, Li-Cd, Li-Cu(II), L i-Mn(II), Li-Pb(II), Li-Se(IV) and Li-Zn pairs. Lithium as the sole acting ion exhibited a weak lethal effect on the nematodes. In combinations with o ther metal ions under study lithium used to inhibit their harmful effects.