The biology, ecology and economic importance of the pink scavenger caterpillar Pyroderces rileyi (Lepidoptera: Cosmopterigidae) on banana in Jamaica

Tropical Science Pub Date : 2007-12-01 DOI:10.1002/TS.217

E. Garraway, Dc Henry, B. Critchley

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Abstract

The pink scavenger caterpillar Pyroderces rileyi Walsingham (Lepidoptera: Cosmopterigidae) is a recent pest of bananas in Jamaica. The larval faecal pellets result in scarring of the banana fruit. The pest occurs on several crops, including cotton, sorghum and maize, across the world. Its biology in Jamaica, food plant preferences and impact of the recommended control method are examined. Adult trapping methods are investigated. Development from egg to adult took an average of approximately 37 days. The number of larvae increases with the age of the bunch, probably due to decreased amounts of latex as the bunch matures. Adult male moths were caught using traps baited with (E)-11-tetradecenyl acetate as a pheromone lure. Pheromone lures based on a related species, P. simplex Walsingham, were tested but a second minor (< 10%) component, (E)-11-tetradecen-1-ol, present in P. simplex did not appreciably enhance the attractancy of the acetate component. Deflowering was effective as a control measure, significantly reducing adult numbers as well as the level of scarring. Copyright © 2008 John Wiley & Sons, Ltd

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牙买加香蕉粉红食腐毛虫的生物学、生态学和经济意义

粉红食腐毛虫(鳞翅目:夜蛾科)是牙买加最近发生的香蕉害虫。幼虫粪便颗粒会在香蕉果实上留下疤痕。这种害虫发生在世界各地的几种作物上，包括棉花、高粱和玉米。它在牙买加的生物学，食用植物的偏好和推荐的控制方法的影响进行了检查。研究了诱捕成虫的方法。从卵到成虫平均需要37天。幼虫的数量随着束的年龄而增加，可能是由于束成熟时乳胶量减少。采用以(E)-11-十四烯乙酸酯为饵的诱捕器诱捕成年雄蛾。对一种亲缘种单形假蝇(P. simplex Walsingham)的信息素诱饵进行了试验，但单形假蝇中存在的第二种次要成分(< 10%)(E)-11-十四烯-1-醇)并没有明显增强醋酸成分的吸引力。除花是有效的控制措施，可显著减少成虫数量和疤痕水平。版权所有©2008 John Wiley & Sons, Ltd

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Tropical Science

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