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2013•Mağallaẗ zirāʿaẗ al-rāfidaynOpen access

BIOLOGICAL EFFECT OF LEAF EXTRACTS OF PIPER AND TOMATO PLANT ON LARVAE AND ADULTS OF COLORADO POTATO BEETLE (Leptinotarsa decemlineata Say)

Nazar M. Al-Mallah, Salah Al-Deen Abdul Qader Salih

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Abstract

The 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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The 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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Available abstract

The 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 .

Key concepts: Leptinotarsa, Colorado potato beetle, Larva, Piper, Biology, Horticulture, Botany, Toxicology

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BIOLOGICAL EFFECT OF LEAF EXTRACTS OF PIPER AND TOMATO PLANT ON LARVAE AND ADULTS OF COLORADO POTATO BEETLE (Leptinotarsa decemlineata Say) — Research Paper | ScholarLens