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Bioefficacy of Chenopodium ambrosioides L. (Chenopodiaceae) on adult Callosobruchus maculatus F. (Coleoptera: Bruchidae)
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The use of synthetic insecticides has become widespread and useful for decades. However, due to not being eco- friendly and development of resistance in these organisms plants natural products essential oil components have shown significant potentials for insect control. Hence, laboratory bioassays were conducted to investigate bio-efficacy of Chenopodium ambrosioides L: (Chenopodiaceae) essential oil on adult Callosobruchus maculatus F. (Coleoptera: Bruchidae). On the basis of 24 hr and 48 hr median lethal toxicity (L50). Essential oil of C. ambrosioides was toxic on C. maculatus adults at 0.50 Mg/m2 and 0.20 Mg /m2 in 24 hr Lc50. Also 48 hr Lc99 values obtained show that essential oil of tested plant was 0.90 Mg/m2 and 0.18 Mg/ m2 toxic on adult C. maculatus. The study shows that essential oil of C. ambrosioides have potentials as fumigants for protecting cowpea from damage of C. maculatus
Title: Bioefficacy of Chenopodium ambrosioides L. (Chenopodiaceae) on adult Callosobruchus maculatus F. (Coleoptera: Bruchidae)
Description:
The use of synthetic insecticides has become widespread and useful for decades.
However, due to not being eco- friendly and development of resistance in these organisms plants natural products essential oil components have shown significant potentials for insect control.
Hence, laboratory bioassays were conducted to investigate bio-efficacy of Chenopodium ambrosioides L: (Chenopodiaceae) essential oil on adult Callosobruchus maculatus F.
(Coleoptera: Bruchidae).
On the basis of 24 hr and 48 hr median lethal toxicity (L50).
Essential oil of C.
ambrosioides was toxic on C.
maculatus adults at 0.
50 Mg/m2 and 0.
20 Mg /m2 in 24 hr Lc50.
Also 48 hr Lc99 values obtained show that essential oil of tested plant was 0.
90 Mg/m2 and 0.
18 Mg/ m2 toxic on adult C.
maculatus.
The study shows that essential oil of C.
ambrosioides have potentials as fumigants for protecting cowpea from damage of C.
maculatus.
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