Abstract:

Abstract: The control effect of 17 type abamectin mixtures against Panonychus citri were tested in orange through field spray. The results showed that, 3 days after single spray, 14 mixtures got control effect above 90%. Ten days after single spray, 12 mixtures got control effect above 90% .The mixture of 10% abamectin－pyridaben EW got the quickest response and a control effect of above 97% was observed one day after spray. The longest lasting effect was from 25% abamectin-fenbutatin oxide WP and 86% control effect still existed after 30 days of spray. It was concluded that, reasonably mixture of abamectin with other acaricides could effectively prevent the attack by Panonychus citri in orange.