Combined and individual effects of diatomaceous earth and methyl eugenol against stored products insect pests

Toxicity of Aromatic Plants and Their Constituents Against Coleopteran Stored Products Insect Pests

the effects of cooperative versus individual directed reading thinking activities on students inferential and referential questions

two groups of students were assigned as experimental and control ones, and were given instruction on directed reading-thinking activities and after some treatment, they were post-tested. although the initial pre-test did not show any significant differences, the final post-test result revealed that the cooperative reading comprehension helped the experimental group. the cooperative students’...

Biochemical and Toxicological Studies of Bridelia micrantha [Berth] and Mitracarpus villosus [Swartz] DC Extracts used as Biofumigant Against Stored Produce Insect Pests on Albino Rats

Background: In recent years, plant materials have been widely explored as sources of insect pest control agents with little or no study on their toxicity. The present study aimed to detect the biochemical alterations in liver and kidney associated with acute oral toxicity of the extracts of B. micrantha and M. villosus in albino rats. Methods: Twenty seven albino rats, weighing between 150-1...

Insecticidal effect of spinosad dust, in combination with diatomaceous earth, against two stored-grain beetle species

flour beetles, Tribolium confusum. Efficacy was assessed on wheat and maize at three dosages of spinosad dust formulation (corresponding to 0.0625, 0.1875 and 0.625ppm of active ingredient [AI] for S. oryzae and to 0.1875, 0.625 and 1.25 ppm of AI for T. confusum), alone or combined with SilicoSec at 150ppm for S. oryzae and 250 ppm for T. confusum. The mortality of S. oryzae exposed for 14d on...

Toxic and repellent action of sugarcane bagasse-based lignin against some stored grain insect pests

Laboratory experiments were carried out to investigate the efficacy of sugarcane bagasse-based lignin against four stored grain insect pests viz., Tribolium castaneum, Tribolium confusum, Sitophilus oryzae and Callosobruchus maculatus. Mortality was assessed after 24, 48 and 72 h of treatment and LD50 values were calculated at the respective time intervals. It was observed that T. castaneum is ...