Study on Control Technique for Leaf Mites on Moso Bamboo

Leaf mites,including Schizotetranychus nanjingensis,Aponychus corpuzae and S.bambusae,are serious moso bamboo,phyllostachys pubescens,leaf pests in Fujian Province in recent years.Based on the results of laboratory test,many insecticides were used for bamboo cavity injection and spraying fertilizer mixed with Zhuo-Man-Ling(a kind of insecticide)around the root in field.Results show that both methods are effective for control.50% methamidophos and 40% omethoate for cavity injection are the best.3 days after application the insect reduction rate could reach 100%.If 20% kuik,5% chlorfluazuron or 20% fenpropathrin was used for cavity injection,the insect reduction rates could reach 86.0%～98.9% 10 days after application.Root application of insecticide with fertilizer,the insect reduction rate could reach over 96.3% 10 days after application.According to the growth and quality of bamboo,the control measure in order is comprehensive control,root application with Zhuo-Man-Ling with organic fertlilzer,root application with Zhou-Man-Ling with compound fertilizer,cavity injection with methamidophos and nutrient,root application with Zhuo-Man-Ling with urea, cavity injection with methamidophos.