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过去防治天牛幼虫都是用刀挖或灌注药液,对树体損伤很大,刀口不易愈合,还会招致病菌侵入;灌注往树干內的药液,不易排出,长期引起腐烂,縮短果树寿命。針对这一情况,我場于1961年秋开始进行六六六堵塞剂防治天牛幼虫試驗,并經大面积防治,証明具有不損伤树体,节省劳力和药物,操作簡便,不需特制的防治器材,可收到理想防治效果的特点。如1961年我場共有被害苹果树一千四百七十七株,防治效果达92.4—100%。具体做法是:取6%可湿性六六六粉一份,与煮熟的冷却去皮山芋十份充分拌合,調成软面状;使用时用手将調制好的堵塞剂捏成小团填塞入天牛幼虫蛀孔內,并尽量
In the past, the larvae were dug or drenched with a knife, causing great damage to the tree. The incisions did not heal easily and the bacteria invaded the plants. The medicinal solution infused into the tree trunk was not easily discharged and caused long-term decay and shortened fruit trees life. In response to this situation, my field began in the autumn of 1961 hexagonal six plugging agent to control the larva test, and large-scale control, proved to have no damage to the tree, saving labor and drugs, easy to operate, without special Prevention equipment, can receive the ideal control effect characteristics. For example, in 1961, a total of 1,474 apple trees were killed in our field, and the control effect reached 92.4-100%. The specific approach is: Take 6% wettable six six one powder, cooked and cooled peeled potato ten full mixing, tune into a soft surface; use hand when the modulation of the blocking agent into a small group Fill into the larvae of hormones into the wormhole, and try to