TREATMENT OF THE COWPEA WEEVIL CALLOSOBRUCHUS MACULATUS F. (BRUCHIDAE COLEOPTERA) WITH LOW OXYGEN ATMOSPHERES CONTAINING CARBON DIOXIDE | ||
Egyptian Journal of Agricultural Research | ||
Article 12, Volume 73, Issue 1, March 1995, Pages 127-133 PDF (2.27 M) | ||
Document Type: Original Article | ||
DOI: 10.21608/ejar.1995.433189 | ||
Authors | ||
MOHAMED Y. HASHEM1; ISMAIL I. ISMAIL2; ESAM E. OMAR1 | ||
1Plant Protection Research Institute, Agriculture Research Centre, Dokki, Giza, Egypt | ||
2Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, Egypt | ||
Abstract | ||
Controlled atmosphere were investigated as a substitute for conventional stored grain products. The effect of different gas mixtures containing different levels of carbon dioxide against adults and developmental stages of Callosobruchus maculatus at 25°C and 70% R. H. was studied. The adults of this species were more susceptible than the other stages to the tested modified atmospheres. Exposure to 75% CO2 in air for three days was sufficient to cause 100% mortality for eggs, larvae and pupae, whereas 50% CO2 was sufficient to kill 100% of adults. | ||
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