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| Effects of Jatropha and Moringa Powders on Khapra Beetle (Trogoderma granarium Everts) Infesting Sorghum Grains, Under Laboratory Condition
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Fath El Rahman M. Ahmed, Ahmed E. M. Hassan and Awadallah B. Dafaallah
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Abstract:
Khapra beetle (Trogoderma granarium Everts) of the Dermestidae family is considered as the most destructive stored food pest and its larvae reduce the quality and quantity of stored grains. The objective of the percent was to study the effect of intervention of Jatropha (Jatropha curcas L.) powders at zero time on khapra beetle infesting sorghum (Sorghum bicolor Moench) grains, Gezira State, Sudan. The experiment was carried out under laboratory conditions during the period of September from 2015 to March 2016. The powder of each part of Jatropha plant (seed, leaf and barks) was 6.0 g ? kg of sorghum grains (w ?w). To each jar of sorghum grains (weight 250 g), except in untreated control. Then five pairs of adult khapra beetles were released in. The variety of sorghum under study was Tabat that was treated with heat at 60°c for 24 hours. The powders and the adults of khapra beetle were placed in the same time (zero time). Gaucho 70 WP (standard) at 3.0 g ? kg of sorghum grains (w ? w) and control (untreated) were included for comparison. Treatments were arranged in a completely randomized design (CRD) with four replicates on a wooden bench. Larvae, pupae and adults were counted and recorded and then continued monthly for a period of six months. At the seven month from the start of experiment the loss in grains weight was calculated. Data were transformed, when needed, and subjected to statistical analysis of variance (ANOVA). Significant means were separated using Duncan's Multiple Range Test (DMRT) at P ? 0.05. The Jatropha and Moringa powders significantly reduced the number of larvae, pupae, adults and grains weight loss. The seed powders of Jatropha and Moringa were more effective in controlling khapra beetle infestation than the powders of leaves and barks. The leaves powder of Moringa, significantly, increased the number of larvae, pupae and adults as well as the grains weight loss compared to the control (untreated). This study concluded that Jatropha and Moringa powders could be implemented in the integrated management of the Khapra beetle on stored grains of sorghum.
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