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The research was conducted at the laboratory of Environmental Protection, Faculty of Environmental Agricultural Sciences, El-Arish, Suez Canal University, Egypt, to study the effect of toxicity extracts of methanol to some wild plants in the Sinai (Ader Artemisia monosperma, neem Azadirachta indica, Lantana Lantana camara, nicotine Nicotiana glauca) with mixing some natural oils (sesame, castor, flax, camphor, menthe) against some pests of stored grain ( rice weevil Sitophilus oryzae, broad beans beetle Bruchus rufimanus) under laboratory conditions. The results showed that all natural oils have given toxic effects in addition to methanol extracts (polar solvents) for all plants tested against adult insects from the rice weevil and broad beans beetle. Generally, methanol extract of nicotine plant without mixing gave the highest toxicity gainst the adult of rice weevil, while methanol extract of neem plant and mixed with castor oil induced the highest toxicity action against broad bean beetle compared to the other plant extracts under laboratory conditions.

sinai journal of applied sciences/sinai journal of applied sciences 

JOINT ACTION EFFECT OF SINAI'S FLORA METHANOL EXTRACTS WITH SOME NATURAL OILS ON RICE WEEVIL SITOPHILUS ORYZAE L. AND BROAD BEAN BEETLE BRUCHUS RUFIMANUS