International Journal of Plant Protection

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Deterioration of Rice Grain Quality Due to Rice Earhead Bug, (leptocorisa Acuta) Thunb. in Tripura


Affiliations
1 Department of Plant Pathology, College of Agriculture, Marathwada Krishi Vidyapeeth, Parbhani M.S.
2 Department of Plant Pathology, College of Agriculture, Marathwada Krishi Vidyapeeth, Parbhani M.S., India
     

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Rice earhead bug, Leptocorisa acuta Thunberg (Hemiptera: Alydidae) is found in almost all the countries where rice crop is grown. It, however, becomes more prevalent in rainfed wetland or upland rice. In Tripura, rice earhead bug (REB) is one of the major pests of rice crop leading to considerable field losses. Experiments were conducted in the field to evaluate the efficacy of some insecticides against REB, L. acuta. The results in field evaluation showed that all the insecticides are having significantly reduced pest population. The mortality percentage of L. acuta caused by different insecticides ranged from 74.01 to 97.03%. Among all the treatments tested, Quinolphos 25 EC gave the highest mortality(97.03%) as compared to untreated control (5.48%).

Keywords

Rice, Insecticides, Botanical, Leptocorisa Acuta, Field Evaluation
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  • Deterioration of Rice Grain Quality Due to Rice Earhead Bug, (leptocorisa Acuta) Thunb. in Tripura

Abstract Views: 321  |  PDF Views: 0

Authors

Utpal Dey
Department of Plant Pathology, College of Agriculture, Marathwada Krishi Vidyapeeth, Parbhani M.S.
B. B. Sarkar
Department of Plant Pathology, College of Agriculture, Marathwada Krishi Vidyapeeth, Parbhani M.S., India
D. N. Dhutraj
Department of Plant Pathology, College of Agriculture, Marathwada Krishi Vidyapeeth, Parbhani M.S., India
S. L. Badgujar
Department of Plant Pathology, College of Agriculture, Marathwada Krishi Vidyapeeth, Parbhani M.S., India

Abstract


Rice earhead bug, Leptocorisa acuta Thunberg (Hemiptera: Alydidae) is found in almost all the countries where rice crop is grown. It, however, becomes more prevalent in rainfed wetland or upland rice. In Tripura, rice earhead bug (REB) is one of the major pests of rice crop leading to considerable field losses. Experiments were conducted in the field to evaluate the efficacy of some insecticides against REB, L. acuta. The results in field evaluation showed that all the insecticides are having significantly reduced pest population. The mortality percentage of L. acuta caused by different insecticides ranged from 74.01 to 97.03%. Among all the treatments tested, Quinolphos 25 EC gave the highest mortality(97.03%) as compared to untreated control (5.48%).

Keywords


Rice, Insecticides, Botanical, Leptocorisa Acuta, Field Evaluation