肇庆地区的病虫害防治工作,自1978年以来,在搞好农业防治和开展生物防治的同时,大力推行科学用药,以求尽快改变过去多年存在的滥用农药的现象。经过几年来的示范推广,现已初步形成一套较为经济安全行之有效的科学用药技术,收到较大的经济效益。自七十年代初期起,全区农药年销用量连年大幅度上升,最高峰的1977年达8782吨。但自1978年在全区范围内开始推行科学用药后,即连年下降,当年降为7441吨,1980年降到6396吨,1981年降至5846吨。1981年与1977年相比减少用药2936吨,节约293万元以上,并节省了大批劳动力。与此同时由病虫害造成的总损失率也从七十年代初、中期(用药量最大的几年)每年的6.5—9％下降 Since 1978, while doing a good job in preventing and controlling agriculture and carrying out biological control, the pest and disease control and prevention work in Zhaoqing has vigorously promoted the scientific use of medicines so as to change as soon as possible the phenomenon of abuse of pesticides that has existed for many years in the past. After several years of demonstration and promotion, it has initially formed a set of relatively economical and effective scientific drug treatment technology, and received greater economic benefits. Since the early 1970s, annual pesticide sales in the region have risen substantially year after year, reaching a peak of 8,782 tons in 1977. However, since the introduction of scientific medicine in the region in 1978, the number has dropped year after year, dropping to 7441 tons in that year, 6396 tons in 1980 and 5846 tons in 1981. In 1981, compared with 1977, it reduced the medication by 2,936 tons, saved more than 2.93 million yuan, and saved a large amount of labor force. At the same time, the total loss caused by pests and diseases also dropped from 6.5-9% per annum in the early 1970s and in the middle period (the most heavily used years)