Fish meal trap to monitor shoot fly population and its control by insecticide in the field
1985
Kriangkrai Chamroenma | Malee Chawanapong | Arunee Wongkobrat (Department of Agriculture, Bangkok (Thailand). Entomology and Zoology Div. Corn and Other Field Crop Insect Res. Group)
Investigation was carried out on the population of sorghum shootfly, Atherigona soccata Rondani at the Corn and Sorghum Research throughout the year. The sorghum shootflies were caught with fish-meal traps. The adult flies were abundant in June, and gradually reduced in number, respectively, in October, September and August, or when there were crops planted in the field. Besides sorghum which is the host plant of the shootflies, other crops such as cron, mungbean, soybean, etc., serve as the shelter hosts of the adult flies. The peak of the daily catches was influenced by environmental factors such as the amount of rainfall and light intensity. A large number of flies was caught during frequent rainfall and also on days when the light intensity was low. A small number of the flies was caught when there was little rain or when intensity of light was high. The sorghum shoootfly could be controlled chemically by treating the seeds with 1 % of carbofuran 35 ST or by applying carbofuran 3 G. in the trench at planting time at the rate of 6-8 kg/rai.
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