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黄连木种子是优良的木本油料,可供食用和工业用油,经济价值很高。河北的磁县、武安、涉县有300多万株黄连木,年产种子500—700万斤,价值150—210万元。近年来由于黄连木种子小蜂(Eurytoma plotnirori Nikolskaya)猖獗发生,造成黄连木种子连年绝收。1983—1985年采用树干打孔注药法防治幼虫,效果达97.3%,经过有关专家鉴定,认为是当前防治黄连木种子小蜂的一项突破。但因采用此法防治,注药部位产生一定的药害,影响了这一方法的推广。因而,研究解决药害问题,从现有农药中筛选出最佳农药、浓度、用药量;
Pistacia seeds are excellent woody oil, for food and industrial oil, high economic value. Cixian, Wuxian and Shexian counties in Hebei Province have more than 3 million trees of Pistacia chinensis, with an annual output of 500-700 million kilos of seeds and a value of 1.5-2.1 million yuan. In recent years due to the occurrence of Pistacia australis (Prynne) Nikolskaya rampant occurs, resulting in Pistacia seed inadvertently year after year. 1983-1985 trunks injection hole method of prevention and control of larvae, the effect of 97.3%, after the identification of experts, that the current prevention and treatment of Pistacia avenidae a breakthrough. However, due to the use of this method to prevent and control, injection site has a certain degree of injury, affecting the promotion of this method. Therefore, to study and solve the problem of pesticide damage, select the best pesticide, concentration and dosage from the existing pesticides;