International Journal of Plant Protection

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Occurrence of Insect-pests and Natural Enemies in Rice (oryza Sativa l.) Agro-ecosystem


Affiliations
1 Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi U.P., India
2 Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi U.P., India
3 Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi U.P., India
     

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The present survey was conducted during Kharif 2011 and Kharif 2012 in Varanasi district of Uttar Pradesh, India. Twenty six insect-pests and natural enemies of crop plants, belonging to 9 different orders (including Acarina group) were recorded in the rice (Oryza sativa L.) agroecosystem. The maximum percentage of insect-pests and natural enemies were recorded in the order Coleoptera (23.10%), followed by Lepidoptera (15.40%), Homoptera, Isoptera and Thysanoptera. Insect pests viz., yellow stem borer, green leaf hopper and gundhi bug were highest in proportion, whereas rest others were found to be medium or low in proportion. Among natural enemies and predators, rove beetles, tiger beetles, carabid beetles, damsel flies and dragon flies were recorded from the rice agro-ecosystem.Fkh

Keywords

Coleopteran, Dragon Fly, Rice, Yellow Stem Borer
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  • Occurrence of Insect-pests and Natural Enemies in Rice (oryza Sativa l.) Agro-ecosystem

Abstract Views: 208  |  PDF Views: 0

Authors

Dharmendra Kumar
Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi U.P., India
M. Raghuraman
Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi U.P., India
Janardan Singh
Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi U.P., India
Showkat A. Waza
Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi U.P., India

Abstract


The present survey was conducted during Kharif 2011 and Kharif 2012 in Varanasi district of Uttar Pradesh, India. Twenty six insect-pests and natural enemies of crop plants, belonging to 9 different orders (including Acarina group) were recorded in the rice (Oryza sativa L.) agroecosystem. The maximum percentage of insect-pests and natural enemies were recorded in the order Coleoptera (23.10%), followed by Lepidoptera (15.40%), Homoptera, Isoptera and Thysanoptera. Insect pests viz., yellow stem borer, green leaf hopper and gundhi bug were highest in proportion, whereas rest others were found to be medium or low in proportion. Among natural enemies and predators, rove beetles, tiger beetles, carabid beetles, damsel flies and dragon flies were recorded from the rice agro-ecosystem.Fkh

Keywords


Coleopteran, Dragon Fly, Rice, Yellow Stem Borer