Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada.
Pest Manag Sci. 2011 Apr;67(4):408-13. doi: 10.1002/ps.2078. Epub 2011 Jan 11.
Greenhouse whiteflies, Trialeurodes vaporariorum (Westwood), are notorious pests that, through the reduction of crop yields and excretion of honeydew, cause significant economic losses for sweet pepper (Capsicum annuum L.) growers. Chemical and biological controls are the two most common forms of whitefly management in greenhouses. Consequently, insecticide resistance and inadequate control have rejuvenated interest in alternative tactics. In the present study, whitefly responses to trap crops (eggplant and squash) and yellow sticky traps were compared in order to identify the most effective traps for dispersing and resident adults.
Results indicated that yellow sticky traps were most effective at trapping adult whiteflies. Significantly more dispersing whiteflies were recorded on eggplant than on squash trap crops. None of the traps significantly reduced adult populations on the main crops (peppers) compared with the control. However, yellow sticky traps did significantly reduce oviposition on peppers.
Adult whiteflies were most effectively trapped on yellow sticky traps followed by eggplant trap crops. Further study of whitefly trapping using visual cues may enhance trapping management. Specifically, research combining yellow sticky traps with other control strategies is recommended.
温室粉虱，烟粉虱（西韦氏），是臭名昭著的害虫，通过减少作物产量和排泄蜜露，给甜椒（辣椒）种植者造成重大经济损失。化学和生物防治是温室中粉虱管理的两种最常见形式。因此，杀虫剂抗性和控制不足重新激发了对替代策略的兴趣。在本研究中，比较了诱捕作物（茄子和南瓜）和黄色粘虫板对白粉虱成虫的反应，以确定最有效的诱捕器来分散和驻留成虫。
结果表明，黄色粘虫板对诱捕成年粉虱最有效。在茄子诱捕作物上记录到的分散粉虱明显多于南瓜。与对照相比，没有一种诱捕器能显著减少主要作物（辣椒）上的成虫种群。然而，黄色粘虫板确实显著减少了对辣椒的产卵。
成年粉虱最有效地被黄色粘虫板和茄子诱捕作物捕获。进一步研究使用视觉线索的粉虱诱捕可能会增强诱捕管理。具体来说，建议将黄色粘虫板与其他控制策略结合使用。
