微生物农药的应用,由于无公害、效果好、生产容易等优点而日益引起重视。为探索在黑龙江省西部干旱地区应用微生物农药防治林木害虫的方法,并选用适宜的菌剂,于1973年春,在龙江县绿色海洋林场结合飞机喷药进行了飞机喷洒菌剂,防治柳毒蛾试验,取得了一定效果。一、试验情况飞机喷洒菌剂防治柳毒蛾是在东山营林区8-11林班进行。林分为杨、榆带状混交林,杨树面积328亩,榆树面积300亩,平均树高6-8米,平均胸径5厘来,郁闭度0.7-0.8。使用菌剂为长沙微生物研究所产的松毛虫杆菌粉剂(每克含孢子100亿)及广东新会白僵菌厂产的白僵菌粉剂(每克含孢子50亿)。两种菌剂配制成悬浮稀释液时,分别放入0.15％(白 Application of microbial pesticides, due to pollution-free, good effect, easy production and other advantages and has drawn increasing attention. In order to explore the method of using microbial pesticide to control forest pest in the arid area of ​​western Heilongjiang Province and to select the suitable fungus agent, we carried out the aircraft spraying fungus agent in the spring of 1973 in the green ocean forest farm of Longjiang County to prevent and cure the venom moth , Has achieved some results. First, the test situation Aircraft spraying fungicides against the poisonous moth is Dongshan forest area 8-11 forest classes. Forest is divided into Yang, Ulmus hybrid forest, poplar area of ​​328 acres, 300 acres of elm trees, the average height of 6-8 meters, average diameter at breast 5%, canopy density 0.7-0.8. The use of fungi for the Changsha Institute of Microbiology produced Moth powder (10 billion per gram spores) and Beauvoleia plant produced by the Guangdong Beauveria bassiana powder (5 billion per gram spores). When formulated into a suspension of two dilutions, respectively, into the 0.15% (white