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ABSTRACT: The leaves, seed and stem bark of Adenanthera pavonina (L.) were extracted in different organic solvents namely Petroleum ether, acetone, chloroform and methanol to investigate the repellent activities of Callosobruchus chinensis L. (Bruchidae). The extracts from the above solvents showed repellent activities against adult C. chinensis at 471.50, 235.75, 117.88, 58.94, and 29.47 μg/cm2 on filter paper. All the test extracts offered repellency at 0.01% level of significance except the stem (acetone) extract which was found 0.1% level of significance (P<0.01). According to the intensity of repellency the result could be arranged in a descending order: leaf (petroleum ether extract) >leaf (chloroform extract) >seed (methanol extract > stem wood (acetone) extract and in all the cases significant differences were noticed.
Keywords: Extracts, Adenanthera pavonina, repellent, Callosobruchus chinensis.
DESCRIPTION OF A NEW SPECIES OF ALLOTROPA FÖRSTER 1856 (HYMENOPTERA: PLATYGASTRIDAE), AN ENDOPARASITOID OF THE CASSAVA MEALYBUG
EXPLORING SELECTED MICROBIAL PESTICIEDES AGAINST SUCKING PESTS OF BRINJAL
DOCUMENTATION OF INSECT PEST ATTACK AND PESTICIDE USAGE ON NEW PLANTATIONS OF COFFEE (COFFEA SPP.) IN SYLHET
ASSESSMENT OF ADULTERATION IN DIFFERENT MARKETED BRANDS OF COMMONLY USED PESTICIDES IN BANGLADESH
CHECKLIST AND TAXONOMIC KEYS TO THE LEAFHOPPER AND PLANTHOPPER OF RICE BASED AGROECOSYSTEM IN BANGLADESH
EVALUATION OF DIFFERENT BIO-PESTICIDES AGAINST RUGOSE SPIRALING WHITEFLY INFESTING COCONUT CROP UNDER FIELD CONDITION
RESPONSE OF BENEFICIAL ARTHROPODS TO INSECTICIDES; USED FOR THE IPM MODULE AGAINST COTTON JASSID (AMRASCA BIGUTTULA BIGUTTULA ISHIDA)
INCIDENCE AND DAMAGE SEVERITY OF PINK HIBISCUS MEALYBUG, MACONELLICOCCUS HIRSUTUS INFESTING ORNAMENTAL PLANTS
FARMERS’ KNOWLEDGE OF INSECT PESTS IN BOTTLE GOURD (LAGENARIA SICERARIA) AND THEIR MANAGEMENT PRACTICES IN MAJOR BOTTLE GOURD PRODUCING DISTRICTS OF BANGLADESH
OPTIMIZATION OF REARING PROTOCOL FOR EGG AND LARVAL PARASITOIDS WITH THEIR ASSOCIATED HOSTS AND EVALUATING THE EFFICACY OF BRACON HEBETOR AGAINST FALL ARMYWORM IN MAIZE
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