诱捕检测控制锈赤扁谷盗生产试验

FIELD TRIAL OF TRAP MONITORING AND CONTROL ON CRYPTOLESTES FERRUGINEUS(STEPHENS)IN PADDY STORED

在稻谷粮仓内试验了带有昆虫信息素和食物引诱剂的诱捕器检测与控制锈赤扁谷盗的应用效果。试验结果为：在平均粮温19℃以上时锈赤扁谷盗成虫可以活动并被诱捕器诱捕到;平均粮温21℃~22℃时采用取样筛检法未能检测出害虫时已有较多成虫被诱捕到。在较低粮温（23℃）下,同一天的早、中、晚三个时段诱捕器诱捕害虫的数量差异不明显。当粮温25℃下单个诱捕器诱捕锈赤扁谷盗成虫达30头以上时,取样筛检法的检测结果仍属于基本无虫粮等级。当取样筛检结果还处于一般虫粮等级时,单个诱捕器诱捕到的成虫数量即可达40头以上。采用具有昆虫信息素和食物引诱剂的诱捕器在温度升高时诱捕数量增多,对害虫种群控制作用更加明显。

Field trial of trapping monitoring and control of Cryptolestes ferrugineus was carried out in a paddy storage warehouse in summer with the trap used in the trial collocated with some insect pheromone and food lure. The results were that the adults of the insect can be monitored when the grain temperature was about 19℃. The more adult individuals can be captured when the grain temperature was 21℃-22℃. When grain temperature was less than 23℃, there was no obvious difference in monitored insect number in morning, noon and afternoon in same day. There was almost no insect being sieved by the method of sam- piing and sieving while there were 30 adults captured in one trap. When 40 adults were trapped the insect number got from the sampling and sieving method was in the range of 6- 10 adults for each monitoring point at 25℃ of grain temperature. It was obvious that the insect number from trap was more than that of sampling and sieving method. Meanwhile trap with pheromone and food lure played a function of insect population control and trapped more insect with the temperature increase.