胡瓜钝绥螨对柑桔红蜘蛛的控制作用

Research for Controlling Red Spiders by Amblyseius cucumeris

胡瓜钝绥螨作为一种活体天敌,具备了活体天敌控害的一般规律。研究结果表明,在按一定益害比释放胡瓜钝绥螨的桔园,柑桔红蜘蛛一般出现"无峰型"、"双峰型"和"单峰型"的消长规律。出现柑桔红蜘蛛高峰期,主要是在释放胡瓜钝绥螨后的种群建立期间和越夏后。胡瓜钝绥螨对绣壁虱控制作用不稳定。

With the method of keeping Amblyseius cucumeris in citrus field was studied the damaging routines of red spider(Panonychus citri).The results of the research shows that that the growing period of red spider has three peaks,the first one is none damaging peak ,and during this peak,A.cucumeris are growing,the number of red spider in the field don t exceed the chemical controlling target,the second one is double damaging peaks ,these two peaks appear distinctly before the A.cucumeris getting big groups and a...