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Seasonal Occurrences of Insect Pests in Watermelon under Greenhouses as Affected by Cropping Season

시설하우스내 수박 재배 작기별 작기별 해충 발생소장

  • Published : 2008.12.30

Abstract

The seasonal occurrence of insect pests in watermelon cultivated in greenhouses was surveyed in Gochang from 2006 to 2007 considering three seasonal types of culture: forcing culture, semi-forcing culture and retarding culture. Aphis gossypii, mites (Tetranychus urticae+T. kanzawai) and Palpita indica were the most serious pest species in watermelon greenhouse culture. A. gossypii and mites showed high density during the months of June and September in semi-forcing and retarding culture, respectively. Palpita indica was observed only in retarding culture. Leaf damage by Palpita indica was observed from the middle of August and peaked to 79.4% damage in the middle of September. Thrips and whiteflies were captured in high density by the yellow sticky trap in semi-forcing culture and retarding culture but these insects showed low population density in watermelon leaves.

전북 고창의 시설하우스에서 수박 재배 작기에 따른 해충의 시기별 발생 밀도를 2006년부터 2007년 까지 조사하였다. 촉성재배에서 발생되는 주요 해충은 목화진딧물이었으며, 다발생기는 3월 중순과 4월 하순이었다. 반촉성재배에서 발생되는 주요 해충은 목화진딧물과 응애류(점박이응애+차응애) 이었으며, 다발생시기는 6월 이었다. 억제재배에서는 목화진딧물, 응애류(점박이응애+차응애), 아메리카 잎굴파리, 목화바둑명나방의 발생과 피해가 많았다. 목화진딧물과 응애류는 9월에 발생량이 많았다. 아메리카잎굴파리는 9월 상순에 발생량이 많았다. 목화바둑명나방은 8월 중순부터 피해가 나타났으며, 9월 중순에 피해엽률이 79.4%로 가장 큰 피해를 주었다.

Keywords

References

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