The use of natural pesticide and its combined action with gamma radiation as traditional protectants of stored cowpea against Callosobruchus Maculatus (F.) [eclectronic resource].

Includes references.

Plant powders (garlic, onion and both of them) either alone or in combination with radiation (20 and 40 Gy) were used in order to suppress the attack of pulse beetle Callosobruchus maculatus (L.) in cowpea seeds. Results show that tested materials had a toxic effect against insect. It appears that adult mortality was affected by both dosages of irradiation and period of exposure. Treatment of irradiated adults with LC₁₀ LC₂₅ and LC₅₀, of plant powders produced higher percent mortality than either treatment given alone. Garlic powder was significantly effective at 40 Gy with LC₁₀ LC₂₅ and LC₅₀ after 72 hr., treatment at the other exposure time (24 and 48 hr.) caused slight percent mortality.

Summary in Arabic.

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