Alfalfa weevil control in Alberta

艾伯塔省的苜蓿象甲防治

• 批准号: 499006-2016
• 负责人: McDonald, Tanya
• 金额: $ 1.7万
• 依托单位: Olds College
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 1
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=607126
• 关键词: Alfalfa; weevil; control; Alberta

Alfalfa weevil has become the most challenging pest for Alberta's alfalfa seed producers. Alfalfa weevil larvae defoliate plants and their feeding reduces yield, quality, and stand health. A density of one larva in thirty twelve-inch-tall plants has been estimated to reduce yield by about 3 lb per acre and one larva in thirty sixteen-inch-tall plants translates to a loss of approximately 0.75 lb per acre. Farmers report limited efficacy from conventional insecticide products and suspect resistance has developed. Leaf-cutter bees are an integral part of alfalfa seed production, so control options must regard pollinator safety.

苜蓿象鼻虫已经成为艾伯塔省苜蓿种子生产商最具挑战性的害虫。苜蓿象鼻虫幼虫使植物落叶，它们的取食降低了产量、品质和林分健康。据估计，在32棵12英寸高的植物中，一个幼虫的密度会使每英亩的产量减少约3磅，而在36棵16英寸高的植物中，一个幼虫的密度会使每英亩的产量减少约0.75磅。农民报告说，传统杀虫剂产品的功效有限，而且怀疑已经产生抗药性。切叶蜂是苜蓿种子生产的一个组成部分，因此控制方案必须考虑传粉者的安全。