在毛主席“以粮为纲,全面发展”的方针指引下,发展木本粮食——板栗,加强板栗的经营管理,提高产量,已成为广大贫下中农的迫切要求。但近几年来,在泰山、蒙山、徂徕山、罗山及临沭等地发现栗树受赤腰透翅蛾的危害,影响栗树的生长和结实,严重的已造成林木死亡。据反帝林场调查,在2,198株胸径20厘米以上的大树中,有虫株数占总株数的33.8%,个别地片有虫株率高达87.3%,已死亡100多株,严重地影响了板栗生产。症状大部分发生于树干基部,粗皮翘裂,有较宽的裂缝或虫洞,其中堆有褐色的粪便,并排 Under the principle of “taking grain as the key link and all-round development” by Chairman Mao, the development of the wood-based grain-chestnut, strengthening the management of chestnut and increasing the output has become an urgent requirement of the vast number of poor and middle peasants. In recent years, however, it has been found in Taishan, Mengshan, Dalaishan, Luoshan and Linshu that the damage of chestnut trees to Bupleurum chinense, which affects the growth and fruiting of chestnut trees, has led to the death of trees. According to the survey conducted by the Anti-Imperialist Farm, in 2,198 trees with a diameter of more than 20 cm, there are 33.8% of the total number of pests in the tree. The individual strains have the rate of 87.3% and the number of dead more than 100, which seriously affected the chestnut produce. Much of the symptoms occur at the base of the trunk, where the bark is fissured, with wide cracks or wormholes, with brown excrement piled up side by side