Potential of pyrethroid insecticides and plant extracts on fecundity and egg viability of Tribolium castaneum (Herbst)

Abstract

Context: Sythetic pyrethroid and two botanical may reduce the fecundity and egg viability of red flour beetle, Tribolium castaneum (Herbst) and can be used in grain protection. Objective:To determine the effect of cypermethrin, fenitrothion, Murraya paniculata L. and Jatropha gossypifolia L. plant extracts on fecundity and egg viability of T castaneum. Materials and Methods:Newly hatched T. castaneum larvae were kept in a petridish containing 30 g either fresh or treated flour separately. After pupation the pupae were sieved and sexed by microscopic examination and kept separately for adult emergence. Twenty five pairs (1♂: 1♀) adults were paired from treated and one pair from untreated media and placed in a glass vial containing 2 g of food either treated or untreated for oviposition in an incubator at 30 ± 0.5°C. Eggs were collected and counted after every three days over a period of 45 days. The eggs laid by the first 15 pairs from each treatment were collected from the experimental vials and kept in separate petridish for hatching. Eggs were regularly observed with a microscope and hatched larvae were counted. Results:The females of all treated media laid less number of eggs than the untreated females. Both insecticides and botanicals affected oviposition significantly (P<0.001) at all doses levels. All the treatments of both the insecticides and botanicals significantly (P < 0.001) reduced the fertility of eggs laid by T. castaneum females in comparison to those of the control. Conclusion:The plant extracts of kamini and jamalgota can effectively reduced the fecundity and egg viability against stored product insect pests with low mamalian toxicity

Jatropha gossypiifolia L. (Euphorbiaceae): A Review of Traditional Uses, Phytochemistry, Pharmacology, and Toxicology of This Medicinal Plant

“…In this work, the authors performed a strategy of extraction that eliminated nonprotein compounds, being able to demonstrate the potential of the species to obtain insecticidal proteins [ 56 ]. Leaf extract of J. gossypiifolia reduced the fecundity and egg viability against stored product insect pests Tribolium castaneum [ 133 ].…”

Screening for Insecticidal Potential of the Chickpea Plant Cicer Arietinum (L.) Against Three Stored Grain Pests Callosobruchus Chinensis (L.), Sitophilus Oryzae (L.) And Tribolium Castaneum (Herbst) Adults Under Laboratory Conditions

“…A less or more pronounced entomotoxic or insecticidal effect of some plant lectins has been reported by previous studies, although not all (Peumans and Van Damme 1995;Carlini and Grossi-De-Sa 2002). The fertility and egg viability of pest insects that attack stored goods can be successfully reduced by plant extracts from kamini and jamalgota (Jilani et al 2011). Since the use of chemical pesticides against storage pests by farmers in developing countries like Bangladesh is often discouraged, the development of alternative pest management strategies involving plant extracts is likely to be pursued nowadays, which led to design and explore the present investigation.…”