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棉花蕾铃期有许多虫害.如果防治不好,不但蕾铃大量脱落,影响产量,而且,即使未脱落的棉铃亦将缩小,品质下降.兹根据近年来的调查、试验及各地区的经验,提出以下几点防治意见.以供参考.(一)棉盲蝽象棉盲蝽象的危害性,各棉区还是认识不够的.而就新疆棉区来说,它是发生最普遍,为害最严重之大害虫.据历年南疆库尔勒、库车、阿克苏、喀什、莎车、和田、洛浦及北疆沙湾等棉区调查,7月中旬前后棉花脱落蕾铃中(主要是棉蕾),有22.8—97.5%(一般为
There are many insect pests in boll bolls stage. If the prevention and treatment is not good, not only the buds fall off in a large amount, which will affect the yield, but even the bolls that have not shed will be reduced and the quality will decline. Based on the surveys and experiments conducted in recent years, Put forward the following points for prevention and treatment for reference. (A) cotton laceworm like cotton laceworm elephant harm, each cotton area is still not enough understanding .For Xinjiang cotton area, it is the most common occurrence, the most harmful Serious pests.According to the calendar year Southern Korla, Kuche, Aksu, Kashi, Shache, Wada, Luopu and northern Shawan and other cotton survey, before mid-July cotton shedding bolls (mainly cotton buds) , There are 22.8-97.5% (generally