BIOLOGICAL EFFECT OF LEAF EXTRACTS OF PIPER AND TOMATO PLANT ON LARVAE AND ADULTS OF COLORADO POTATO BEETLE (Leptinotarsa decemlineata Say)
Mesopotamia Journal of Agriculture,
2013, Volume 41, Issue 3, Pages 248-261
AbstractThe results of studying the biological effect of water and coholic leaf extracts of piper and tomato plant on larvae and adults of Colorado potato beetle showed a superior and significant effect of water leaf extract of piper on mean percentage of larvae mortality which reached 73.33% at 8% concentration, while water leaf extract of tomato revealed a significant effect on mean mortality percentage on adult of CPB which reached 46.66% at 8% conc. The alcoholic leaf extract of piper exhibited a good repellency effect on larva and adults of the insect in comparison with leaf water extract. While the water leaf extract of tomato produced a highest repellency percentage on larva and adult reached 36.67 and 56.67% respectively .
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