论文部分内容阅读
日照市境内的日本松干蚧MatsucoccusmatsumuraeKuwana疫情首次发现于1995年5月,地点是东港区大沙洼林场。全市共发生6433.3hm2。以40%的氧化乐果1000倍液、21%的灭杀毙2000倍液喷雾防治效果显著。
The outbreak of Matsucoccus medsumurae Kuwana in Rizhao was first discovered in May 1995 in Dashawa Forest Farm, Donggang District. The city occurred a total of 6433.3hm2. To 40% of the omethoate 1000 times, 21% kill kill 2000 times spray control effect is remarkable.