论文部分内容阅读
历年来,应山县是马尾松毛虫常灾区,发虫面积广,危害严重,经济损失大,严重地影响树木生长。为了掌握松毛虫消长规律,准确制定防治对策,我县已初步建立建全松毛虫测报网络。1980年,县林业部门根据松毛虫发生情况,付酬聘请了12位农民技术员担任测报员。建立了虫情测报网点12个。每个测报员在本地松林内选取有代表性的3个点,每个固定10株标准树,每月调查3次,一年调查10个月,作好记载将资料及时案报林业局。
Over the years, Ying Shanxian is the mass affected area of Dendrolimus punctatus, which has a large area of detritus and serious harm, with great economic loss, which seriously affects the growth of trees. In order to master the growth and decline of pine caterpillars, and accurately develop prevention and control measures, our county has initially established a full-scale network of pine caterpillars. In 1980, according to the occurrence of the pine caterpillars, the forestry department of the county hired 12 farmers’ technicians to serve as informants. Establishment of insect detection and measurement outlets 12. Each informant selects 3 representative points within the local pine forest, each of which has 10 standard trees fixed, 3 times a month and 10 months a year, making timely records of the data to the SFA.