Reference Report for IND82039507
| Title: | Studies on the ecological characteristics of beanfly (Melanagromyza sp.) in soybean. |
| Authors: | Kwon, S.H., Chung, K.H., Lee, Y.I., Ryu, J. |
| Source: | Kor. J. Plant Prot. 1981, 20(2):98-102 |
| Abstract: | To investigate seasonal fluctuation of immature (larvae and pupae) beanfly, infestation rates and habit, several soybean cultivars were planted at 3 different planting times at 25-day intervals. Infestation rates of beanflies ranged from 85-100% in accordance with planting dates, where an increase in infestation rate was found with a delay in planting dates. Immature beanflies were observed from June 20th. Three peaks of seasonal fluctuation in larva occurred on July 10, Aug. 10 and Aug. 30, during soybean cultivation, while 2 peaks of pupal populations were found. The highest peaks of larvae and pupae occurred on Aug. 10 and Aug. 30, respectively. Larva were found in the pith or cortex tissue of soybean stem. They prepared a tiny hole on the axilla as well as the internode of stem and pupated in the holes from which the adults escape. Immature beanflies prefer invading the undergound part of the stem when the soybean plants were in young stages. |
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