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Performed studies enabled to understand the effect of lead nitrate on the successive elements of a food chain: food (wax) - insect (G. mellonella) - nematode (S.feltiae). Lead nitrate was added to wax, which was then given to test insects. After 5 days, test insects were infected by the IJs of S. feltiae at a dose of 50 ind. per insect. Viability of the tested insects and changes in the growth of...
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