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Journal of Applied Sciences

Year: 2006 | Volume: 6 | Issue: 11 | Page No.: 2466-2470
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Authors

Umsalama A.M. Ahmed

Shi Zuhua

Nabil H.H. Bashier

Kamal Muafi

Hao Zhongping

Guo Yuling

Keywords

In an attempt to find natural and cheaper methods for the control of vegetable pest, locally available plant C. procera was used and two methods of the extraction were evaluated. Shaker aqueous extract of leaf, flower and roots of C. procera proved most effective in the control of Henosepilachna elaterii showed strong repellent activity and thus deterred the insects from feeding. Five percent shaker extract of different plant part gave 100% protection of cucurbit leaf and no larva survived after exposure to 5% extract, 1 and 2.5% concentrations of shaker extracts highly reduced the fecundity and longevity of the insect. Soxhlet extract had no anti-insect activity. The results show the potential of the aqueous shaker extract in the control of vegetable pests.
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