Mean mortality of first instar larvae of Thaumetopoea wilkinsoni of Israeli populations, caused by Bacillus thuringiensis kurstaki applied on needles in laboratory bioassays. Click on the figure to enlarge.
Egg parasitoid activity in Israeli populations.
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The treatments with Bacillus thuringiensis kurstaki in the expansion area did not affect the survival of the endangered moth Graellsia isabellae, living on Scots pine in S France. |