Callosobruchus maculates

Screening of 230 F4 segregants of cross DC 615 (Susceptible parent) × Dharwad local (Resistant parent) along with checks (Dharwad local, DC 615, DC 15, DCS 47-1 and C 152) was carried out against bruchids (Callosobruchus maculatus) at the Department of Genetics and plant Breeding, University of Agricultural Sciences, Dharwad. Out of 230 segregants, 36 were highly resistant, 43 moderately resistant, 110 least susceptible, 34 moderately susceptible and 7 were found to be highly susceptible.

7p cothumenhmong5 17-05-2020 9 0   Download

The methanol extract from leaves of Saraca indica was investigated to control insect infestation of stored food commodities viz. maize, rice, cowpea and wheat flour during from Ostrinia nubilalis, Spodoptera littoralis, Callosobruchus maculates and Tribolium confusum. After introducing the test insects, stored food samples were fumigated with methanol extract from leaves of Saraca indica at 500 μg/mL (ppm). The methanol extract significantly enhanced feeding deterrence in insects and reduced the grain damage as well as weight loss in fumigated food samples infested with all insects.

16p chauchaungayxua5 05-05-2020 8 2   Download

The methanol extract from leaves of Aegle marmelos was investigated to control insect infestation of stored food commodities viz. maize, rice, cowpea and wheat flour during from Ostrinia nubilalis, Spodoptera littoralis, Callosobruchus maculates and Tribolium confusum. After introducing the test insects, stored food samples were fumigated with methanol extract from leaves of Aegle marmelos at 500 μg/mL (ppm). The methanol extract significantly enhanced feeding deterrence in insects and reduced the grain damage as well as weight loss in fumigated food samples infested with all insects.

15p chauchaungayxua5 05-05-2020 10 2   Download