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1987年是西双版纳各农场橡胶白粉病防治工作抓得紧、防效较好的一年,保证了本年度干胶生产任务顺利完成。1987年橡胶白粉病害是继1985年特大流行后又一次可能流行年,但防治结果却明显优于1985年。在全分局十个农场的37.2万亩开割林地中,防治面积达23.25万亩,加上多次防治的林地,累计防治面积达到35.7万亩。估计挽回干胶损失近2,520吨。折合人民币1,534万元,取得了757.4万元的显著经济效益(防治总费用89.25万元,平均每亩喷药一次2.5元)。在大面积防
In 1987, Xishuangbanna rubber farm powdery mildew prevention and control work on a tight grasp, a good year, to ensure that this year’s dry glue production tasks successfully completed. The rubber powdery mildew in 1987 is another likely year of popularization after the 1985 pandemic, but the control results are obviously superior to those of 1985. Of the 372,000 mu open cuttings of ten farms in the branch, the control area was 232,500 mu, plus the multiple control and prevention of forest land, with a cumulative area of prevention and control reaching 357,000 mu. It is estimated that nearly 2,520 tons of adhesive have been damaged. Equivalent to 15.34 million yuan, made a significant economic benefits of 7.574 million yuan (prevention and control of the total cost of 892,500 yuan, an average of 2.5 yuan per mu spraying). In a large area defense