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Research Article

Occurance and Abundance of Grass Hopper Species on Rice

Abdul Ghani Lanjar , Muzaffar A. Talpur , Rab Dino Khuhro and Khalid H. Qureshi
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Occurrence and abundance of grasshopper species on rice crop was monitored on rice variety IRRI-6 at Rice Research Institute, Dokri during summer of 2001. The four species infesting rice crop recorded were, Hieroglyphus banian Fb. (Rice grasshopper), Oxya nitidula Willemse (Small green grasshopper), Chrotogonus trachypterus trachypterus Blanchard (Surface grasshopper) and Aiolopus tamulus F. (Small grasshopper). Chrotogonus trachypterus trachypterus was recorded in maximum number (12.8 nymphs and 39-l2 adults/observation) during July-October with mean temperature of 37.95 °C Aiolopus tamulus and Oxya nitidula were observed with their maximum population of nymphs (37.6 and 51.0/observation) and adults (39.0 and 70.0/observation), respectively during September-October with mean temperature range of 34.02-37.95 °C. Species H.banian was observed maximum during August-October with (4.6 nymphs and adults 15.2/observation) under mean temperature range of 35.65-37.95 °C. Maximum nymphal activity of all grasshopper species was noticed during three weeks after transplanting of crop and adults were maximally active at crop maturity.

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  How to cite this article:

Abdul Ghani Lanjar , Muzaffar A. Talpur , Rab Dino Khuhro and Khalid H. Qureshi , 2002. Occurance and Abundance of Grass Hopper Species on Rice. Journal of Applied Sciences, 2: 763-767.

DOI: 10.3923/jas.2002.763.767


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