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金龟子发生时期,在果园里悬挂糖醋液瓶来诱杀,具有有效期长、成本低、无污染、省工省时等优点,是防治金龟子的重要方法。笔者发现,以往用罐头瓶盛装糖醋液的效果并不理想,通过这几年的实践摸索,作了一些改进,效果显著提高。1)加大容器口径。糖醋液是以挥发出的气味来诱杀金龟子的,盛装容器的口径越大,挥发量就越大。瓶口应是直敞开的或向外敞开的,这样有利于诱引金龟直接扑落,提高收虫量。据以往经验,瓶子的口径以10～15cm为宜,可将废旧农药塑料瓶截留下半截来用。2)改变瓶体颜色。金龟子对颜色有一定的辨别能力,利用颜色诱杀可以和气味诱杀相互促进。金龟子最喜食花朵,然后是果实和叶子。若把瓶色模拟成花或果
When the chafer occurs, it is an important method to control the chafer. It has the advantages of long duration, low cost, no pollution, time saving and labor saving. The author found that in the past, the effect of using canned bottles to hold sweet and sour solutions was not satisfactory. Through the exploration of practice over the past few years, some improvements were made and the effect was significantly improved. 1) increase the container diameter. Sweet and sour sauce is the smell of volatiles to trap beetles, the larger the container containing the larger the amount of volatilization. Bottle opening should be straight or open to the outside, this is conducive to attract beetles directly flutter, increase the amount of insects collected. According to past experience, the caliber of the bottle to 10 ~ 15cm is appropriate, you can use the waste pesticide plastic bottle cut-off half. 2) Change the bottle color. The beetles have certain ability to distinguish the color, the use of color to kill and the smell can kill each other to promote. Cockchafer most like to eat flowers, then fruits and leaves. If the bottle color simulation into flowers or fruit