บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Oviposition-deterrent and repellent effects of products from dry chilli pepper fruits, Capsicum species on Callosobruchus maculatus.

Lale, N. E. S.;

Postharvest Biology and Technology Year: 1992 Vol: 1 Issue: 4 Pages: 343-348 Ref: 23 ref.

1992

บทคัดย่อ

Oviposition-deterrent and repellent effects of products from dry chilli pepper fruits, Capsicum species on Callosobruchus maculatus.

Acetone extracts of the fruits of peppers (Capsicum frutescens) and chillies (C. annuum) were assayed in the laboratory against the stored products pest Callosobruchus maculatus. Extracts of peppers significantly reduced the fecundity of female bruchids and the number of adults that emerged from treated cowpea (Vigna unguiculata) seeds compared to an untreated control, but extracts from chillies had no such significant effects. Powders prepared from ground peppers and chillies evoked different degrees of repellency on adults of C. maculatus. Powdered peppers could be effective protectants against the bruchid in stored cowpeas.