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增产乌桕既为工业提供原料,又为农业增产肥料。从大跃进以来摸到的乌桕增产的规律来看,在当年增产最显著的是消灭乌桕害虫。金华县在1958年冬季开展消灭乌桕毛虫的治虫运动,1959年的桕子产量比1958年增加156%。兰溪县在1959年春季防治了乌桕卷叶虫,1959年的桕子产量经1958年增加69%。为了更有效地歼灭乌桕害虫,必须摸清害虫的生活习性,掌握有利时机加以消灭,
The increase in production is not only for industrial raw materials, but also for agricultural fertilizer. Judging from the rule of increasing the output of black beans since the Great Leap Forward, the most significant yield increase in that year was the elimination of black pests. In the winter of 1958 Jinhua County launched a pest-killing campaign to eradicate Caterpillar of Ustilagic. In 1959, it increased 156% compared with 1958. Lanxi County in the spring of 1959, prevention and control of the leaf roller worm, in 1959 the output of razor clam increased 19% in 1958. In order to annihilate Ulva pests more effectively, it is necessary to find out the habit of pests, grasp the favorable opportunity to eliminate them,