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【目的】探明适合韭菜的套种及轮作作物。【方法】田间调查了韭菜翻耕后韭菜迟眼蕈蚊Bradysia odoriphaga Yang et Zhang幼虫对13种改种作物的为害情况,分别比较了幼虫和成虫(“Y”型嗅觉仪法)对不同作物的趋性。【结果】韭菜迟眼蕈蚊幼虫对不同作物的为害程度及症状存在明显差异,其中对韭菜Allium tuberosum Rottler ex Sprengel、大蒜Allium sativum L.、圆葱Allium ascalonicum L.等百合科作物的为害最为严重,对菊科作物为害次之,对茄科作物基本无为害。幼虫和成虫对韭菜的趋性最强,对茄科作物的趋性最弱,在对其他作物的趋性上也存在一定差异。【结论】本研究结果对未来以作物轮作或间套作来提高生态防治韭菜迟眼蕈蚊效果以及提高韭菜综合种植效益具有指导意义。
【Objective】 To find suitable intercropping and crop rotation of Chinese chives. 【Method】 Field experiments were conducted to investigate the effects of Bradysia odoriphaga Yang et Zhang, a larva of Chinese chive after tilling on the 13 varieties of crops. The larvae and adults (“Y” type olfactometer method) Tropism of crops. 【Result】 The results showed that the larvae of B. armigera had different degrees of damage and symptoms to different crops. Among them, the damage was most serious to Allium tuberosum Rottler ex Sprengel, Allium sativum L. and Allium ascalonicum L. , The second damage to the Compositae crops, solanaceous crops basically harmless. Larvae and adults on the leek most aggressive, the weakest repellent to Solanaceous crops, in other crops on the tropism there are some differences. 【Conclusion】 The results of this study are instructive for future crop rotation or intercropping to improve the ecological control of B. lemaneiformis and to improve the efficiency of leek comprehensive planting.