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Preliminary Research Report and Analysis of the Larch Sawfly
1 Distribution and Damage The larch Itempast sawfly is mainly distributed in Heilongjiang and Jilin provinces. It is a dangerous pest of larch foliage, with a damage period from June to September, mainly attacking 10-30 year old larch. This insect spreads relatively quickly and causes severe damage. In 1985, the affected area in Hailin Forestry Bureau was 300 mu, and by 1986 the third-generation larvae affected an area of 150,000 mu, of which 67,000 mu were severely damaged, with the highest population density reaching 21,000 larvae per tree; the average population density
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Preliminary research for the 13th Five-Year Plan begins to yield results
On April 1, the Ministry of Agriculture held in Beijing a briefing on the results of major preliminary research projects for the 13th Five-Year Plan for agricultural and rural development, reviewing and evaluating the research results, which also marked that the major preliminary research projects for the plan had entered the "yielding results" stage. On that day, from the Chinese Academy of
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Preliminary Research for the 13th Five-Year Plan Offers Suggestions for Agricultural and Rural Reform
On April 24, the Development and Planning Department of the Ministry of Agriculture held the fourth briefing session on the results of major preliminary research projects for the 13th Five-Year Plan for Agricultural and Rural Economic Development. The research teams conducted
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