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The double life cycle of Lepidapion argentatum, a promising candidate for the biological control of French Broom.

机译:Lepidapion Argentatum的双生命周期,是法国扫帚生物控制的有希望的候选者。

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摘要

Lepidapion argentatum (Gerstaecker) (Brentidae) is a weevil from the Mediterranean region collected and recorded from French broom (Genista monspessulana) (L.) LAS Johnson (Fabaceae), a major invasive plant in the USA. We studied feeding and oviposition of L.?argentatum under laboratory conditions. Overwintering adults can oviposit in either seed-pods or stem tips of French broom. Larvae in seed-pods consume seeds whereas those in stems develop inside a gall. The development time of L.?argentatum in stem galls ranged from 34 to 40 days at mean 23.67?±?2.43°C. The double ability of L.?argentatum to develop in stems and pods appears not to have been recorded in Coleoptera and rare in other phytophagous insects. Our finding increases its potential value as a biocontrol agent against French broom.
机译:Lepidapion Argentatum(Gerstaecker)(Brentidae)是来自法国扫帚(Genista Monspessulana)(L.)Las Johnson(Fabaceae)的地中海地区的象鼻虫,这是美国的主要侵入性植物。 我们在实验室条件下研究了L.?Argentatum的喂养和卵形。 过冬的成年人可以在植物荚或法式扫帚的干裤中的产卵。 种子荚中的幼虫消耗了种子,而那些茎中的种子发生在胆汁内。 L.?Argentatum在茎胆中的开发时间范围为34至40天,平均为23.67°33.67.α≤2.43°C。 L.?Argentatum在茎和豆荚中发育的双重能力似乎不记录在鞘翅目中,并在其他植物昆虫中罕见。 我们的发现将其潜在价值提高了对法国扫帚的生物控制代理。

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