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Monitoring and Mating Disruption of Pseudococcus comstocki by Uing a Sex Pheromone in Pear Orchards

배과원에서 성페로몬을 이용한 가루깍지벌레의 발생예찰과 교미교란

  • Cho, Young Sik (Pear Research Station, National Institute of Horticultural & Herbal Science, RDA) ;
  • Song, Jang Hoon (Pear Research Station, National Institute of Horticultural & Herbal Science, RDA) ;
  • Lim, Kyeong-Ho (Pear Research Station, National Institute of Horticultural & Herbal Science, RDA) ;
  • Choi, Jin Ho (Pear Research Station, National Institute of Horticultural & Herbal Science, RDA) ;
  • Lee, Han Chan (Pear Research Station, National Institute of Horticultural & Herbal Science, RDA)
  • 조영식 (농촌진흥청 국립원예특작과학원 배시험장) ;
  • 송장훈 (농촌진흥청 국립원예특작과학원 배시험장) ;
  • 임경호 (농촌진흥청 국립원예특작과학원 배시험장) ;
  • 최진호 (농촌진흥청 국립원예특작과학원 배시험장) ;
  • 이한찬 (농촌진흥청 국립원예특작과학원 배시험장)
  • Received : 2014.03.13
  • Accepted : 2014.06.05
  • Published : 2014.09.01

Abstract

This study was performed to monitor the seasonal occurrence of Pseudococcus comstocki (Kuwana) by using pheromone traps and to test a mating disruption technique to control this pest in pear orchards. We compared the attractiveness of rubber septa loaded with 1.5 and 3.0 mg of the pheromone, 2,6-dimethyl-1,5-heptadien-3-yl acetate. A total of 1,021 and 1,431 males were caught in traps baited with 1.5 mg and 3 mg of the pheromone, respectively. The numbers of males caught were not affected by trap color, although yellow traps were more attractive than white traps. In 2012, P. comstocki males were captured between June and October, with peaks in late June, early August, and late September. In 2013, the males were trapped between June and October, with peaks in middle June, late July, and late September. In pheromone mating disruption tests, catches were reduced by 17.7, 65.3, and 62.9% in orchards treated with 450, 900, and 1,350 mg per 10 a of the pheromone, respectively. At harvest, 3.4, 2.9, and 4.8% of fruits in orchards treated with 450, 900, and 1,350 mg per 10 a were damaged by P. comstocki, while 9.5% were damaged in the control orchard.

배나무에서 가루깍지벌레의 합성 성페로몬을 이용하여 수컷 성충의 발생 양상과 교미교란 효과 검토를 통해 효과적인 방제 정보를 제공하고자 본 시험을 수행하였다. 가루깍지벌레 성페로몬(2,6-dimethyl-1,5-heptadien-3-yl acetate)이 3 mg과 1.5 mg씩 침적된 고무 캡으로 수컷 유인수를 조사하였는데, 총포획수는 1.5 mg을 침적시킨 트랩에 1,021마리, 3 mg을 침적시킨 미끼에는 1,431마리의 수컷 성충이 포획되어 3 mg을 침적시킨 미끼에 더 많이 유인되었다. 황색과 백색 트랩에 의한 포획량의 차이는 황색트랩에 평균 포획수가 약간 더 많았지만 유의성은 없었다. 가루깍지벌레의 수컷 성충은 2012년에 6월부터 10월까지 포획되었는데, 6월 중순에 가장 많은 수가 포획되었고, 8월 상순, 9월 하순에도 발생 peak를 보였다. 2013년에도 6월부터 10월까지 포획되었는데, 6월 중순에 가장 높은 발생 최성기를 보였고, 7월 하순, 9월 하순에도 발생 최성기를 보였다. 가루깍지벌레 성페로몬을 이용한 교미교란제를 10 a당 450, 900, 및 1,350 mg의 농도로 과수원에 설치한 경우, 수컷 성충의 트랩 유인저해율은 각각 17.7, 65.3, 62.9%였다. 한편, 10a당 450, 900, 및 1,350mg 처리한 시험구에서 수확기에 피해과율이 각각 3.4, 2.9, 4.8%를 보인 반면, 교미교란제를 처리하지 않은 시험구에서는 9.5%였다.

Keywords

References

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