World Applied Sciences Journal 31 (10): 1722-1733, 2014 ISSN 1818-4952 © IDOSI Publications, 2014 DOI: 10.5829/idosi.wasj.2014.31.10.351 Corresponding Author: Azhar Abbas Khan, Department of Agri. Entomology, University of Sargodha, Sargodha, Pakistan. 1722 Impact of Phytopesticides on Trogodermagranarium Everts (Coleoptera: Dermestidae) in Stored Wheat Muhammad Zia-ul-Haq, Muhammad Afzal, Azhar Abbas Khan1, Abubakar M. Raza, 1 1 1 1 Muhammad Irfanullah, Arif Muhammad Khan and Muhammad Kamran 1 2 1 Department of Agricultural Entomology, University of Sargodha, Sargodha, Pakistan 1 Department of Biotechnology, University of Sargodha, Sargodha, Pakistan 2 Submitted: Jan 31, 2014; Accepted: Apr 21, 2014; Published: May 8, 2014 Abstract: Khapra beetle is considered as an economically important pest of stores grains. Although chemical treatment of stored grains against pests is cheaper and time saving but it has adverse effects on human health and eco-system. Therefore, efforts to manage these pests through plant extracts is required to implemented to prevent any contamination of synthetics in stored grains. Present study was designed to evaluate the effectiveness of some plants having insecticidal properties against Khapra beetle infesting the wheat grains. The mortality, repellency, growth inhibition effect and anti-feedant activities of botanicals were examined under laboratory condition. All of the botanicals provided significantly more mortality of Khapra beetle (Larval stage). Neem leaves and Kortuma peel extracts @ 15% provided 32.10%-30.86% mortality respectively after 9-days of treatment. Dirakh and Datura with 27% beetle mortality were followed by Shahtara, Kinow and Grape-fruit extract with ˜20% mortality. All the products showed good repellant effects against Khapra beetle. In another experiment Neem, Dirakh, Kortuma and Datura inhibited the insect (Pupa, Adult) ranging from 37.34% to 50%. The final storage losses of wheat grains treated with these botanicals were also decrease significantly as compared to control. Findings suggested that most these botanicals are effective to control the pest infestation in stored grains. Key words: Khapra Beetle Grains Insect Pests Triticumasetivum Botanicals INTRODUCTION chemical and synthetic insecticide, most serious are Khapra beetle Trogodermagranarium Everts widespread environmental hazards, residual toxicity (Coleoptera: Dermestidae) manifest their population in and increase cost of application of presently used stored grains causing qualitative as well as quantitative synthetic pesticides have directed the need for; effective losses. The grains sometimes left unusable by human bio gradable pesticides [3-5]. being due to presence of huge amounts of fuss and Stored grain pests have become resistant against damaged grains. The population of khapra beetle is chemical pesticides therefore it is needed to develop some affected by several factors biotic and abiotic in alternate strategy to control these pests. Recently nature. But it is always necessary to control and researchers' attention is diverted to essential oils from eliminate this beetle from grains to get quality various medicinal plants those can serve as toxic for the products. pests but are safe for humans and animals. These oils of The control and management of stored grain insect plant origin can be used to control insect pests of stored pests by the use of insecticides and fumigation technique grain [6-9]. has caused a number of difficulties in managing these Plant origin products are getting better consideration insect pests. These problems include change in behaviour as prophylactic measures for the control of pests in and development of resistance against the insecticides in storage, due to security to other than target pests [10]. different regions of the world [1, 2], often leading to Capsicum had also confirmed its potent action against control failure. Among various problems faced by using the pests in rice storage, Angomious grain moth [11]. resistance in insect pest species, pest resurgence,