In the present investigation various solvents i.e. acetone, chloroform, petroleum ether, methanol, hexane and aqueous extracts of stem, root and flower of Capparis decidua were evaluated for insecticidal activity against the Rhizopertha dominica (Fabr). For evaluation of insecticidal activity different bioassays were conducted and insects were exposed with varying doses of each extract. These h...

This study aimed to control lesser grain borer Rhizopertha dominica via using of Zingier officinale (ginger) and Helianthus annuus (sunflower) oils as protectant Tritium spp. The inhibition rates were 38.00, 28.98, 22.67 4.60% respectively when the wheat treated by 0.5, 1, 1.5and 2% sunflower oil while 35.50, 28.00, 7.25 3.25% same concentrations Z. oil. damage assessments decreased increasing ...

Rhyzopertha dominica (F) is primary pest of stored cereals especially wheat under tropical conditions. The extent of physical damages caused by R. dominica to three common Pakistani wheat varieties was studied. The varieties involved were Sehar -2006, Inqalab-91 and Shafaq. There was recorded significant production of frass material and weight loss in all tested varieties after pest infestation...

Temperature gradients were set at the opposite sides of grain storage: 25°C-30°C, 20°C-30°C, 20°C-35°C, 30°C-30°C. The migration and distribution imago Sitophilus oryzae, Rhizopertha dominica Tribolium castaneum in storage observed. results showed significant differences that trends within a certain temperature gradient (p < 0.05). is 25°C-30°C. tends to gather 30°C side area storage, while ...

in laboratory experiments the toxicity of acetone was investigated against four species of stored-product insects. in empty-space trials, estimates of the lethal concentrations of acetone (lc, 72-h exposure) for 50% mortality against adults of the lesser grain borer, rhizopertha dominica (f.), red flour beetle, tribolium castaneum (herbst), rice weevil, si-tophilus oryzae (l.) and eggs of the a...