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苹果巢蛾(Hyponomeuta malinella Zeller)幼虫巢网孔隙約为0.28—2.25微米,平均0.53微米,一般噴雾液滴約100—400微米,无法喷入网內。利用烟剂毒杀幼虫药效测定結果証明:45％六六六烟剂不及45％滴滴涕烟剂和六六六-滴滴涕混合烟剂(45％等量六六六和滴滴涕)。每公頃用六六六-滴滴涕混合烟剂15—20斤,风速1—1.5米/秒,于越冬幼虫出鞘活动初期,日落后采用定点或定点与移动相結合的方法施烟一次,田間防治效果达77.9％—94.3％;平均示范防治效果为74.3％、73.3％。烟剂防治效果高于敌百虫,稍遜于对硫磷噴雾,且施药安全、防治費低,比噴液提高工效30倍,适于大面积应用。
The larval nematode pores of the apple penguin (Hyponomeuta malinella) larvae range from about 0.28 to 2.25 microns with an average of 0.53 microns. The spray droplets are typically about 100-400 microns in diameter and can not be sprayed into the nets. The result of the test of toxicity of larvae using tobacco smoke shows that 45% of 666 cigarettes smoke less than 45% of the mixture of 86% DDT and 666% (DDT) mixed with BHC (45% equivalent BHC and DDT). Hectare with six six six - DDT mixture of tobacco 15-20 pounds, the wind speed of 1-1.5 m / s, early in the winter larvae sheathing activity, after sunset using fixed-point or fixed-point combination with the method of moving tobacco, field control The effect reached 77.9% -94.3%; the average model control effect was 74.3% and 73.3%. Tobacco control effect is higher than the trichlorfon, less parathion spray, and pesticide safety, prevention and control costs are lower than the spray to improve work efficiency 30 times, suitable for large area applications.