论文部分内容阅读
单纯使用化学药剂的影响 化学防治对动物种群的影响,一般分“暂时的效应”和“长期的效应”两种。前者常发生在植物的生长期内,最显著的,在施药后不久,被防治的对象或其他本非严重为害的种类,数量突然上升,甚至能超过未防治的区域。据Ripper(1956)统计,5,000多种害虫及螨类由于广泛使用24种化学药剂(包括滴滴涕、滴滴滴、六六六、氯丹、艾氏剂、狄氏剂、七氯、毒杀芬、E-600、E-605、硫代二苯胺、砷酸钙、氟铝酸钠、硫黄、石硫合剂、鱼藤酮、矿油乳剂、焦油乳剂等)以后,约有50种以上
The effects of chemical control alone on the animal population are generally based on the use of chemical agents and are generally classified as “temporary effects” and “long-term effects”. The former often occurs in the plant growth period, the most significant, shortly after the application, the number of the controlled object or other non-seriously damaging species suddenly rises even beyond the unchecked areas. According to Ripper (1956), more than 5,000 pests and mites are widely used as a result of the widespread use of 24 chemicals (including DDT, DDT, BHC, chlordane, aldrin, dieldrin, , E-600, E-605, thiodianiline, calcium arsenate, sodium fluoroaluminate, sulfur, limestone, rotenone, mineral oil emulsion, tar emulsion, etc.)