秋去冬来,气温逐渐下降,各种林木害虫为了生存和传宗接代,有的藏于自己编织的口袋里,有的躲入翘起的老树皮内,或钻进地表裂缝中,还有的在树枝上产下卵块。这时,它们不吃不喝不动,是消灭的好时机。农谚:“冬捕一个蛹,夏少万条虫”。下面介绍林木冬季灭虫的几种方法。一、压碎虫卵,剪除卵枝。有些害虫把卵产在树枝的表皮上,形成环状卵块或卵袋;还有的在树枝隐蔽处织入丝茧,然后化蛹冬眠。对于这些卵块、卵袋及蛹等,在冬季修剪时,应注意把它们压碎、摘除或捏烂。蝉类、天牛等,常把卵产于嫩枝中,并放出毒液把嫩枝毒死。对于带害虫卵的枝条、干叶,冬剪时均应剪除烧掉。同时注意收集、烧毁那些落在地面上的带卵枝叶。二、 Autumn to winter, the temperature gradually decreased, all kinds of forest pests in order to survive and pass on the line, some hidden in their own woven pocket, and some hid in the cocked old bark, or into the surface cracks, as well as Lay eggs on the branch. At this time, they do not eat or drink, it is a good time to eliminate. Farming Proverbs: “a pupa in winter, summer less million worms.” Here are some ways to forest pest control in winter. First, crush eggs, cut off the egg branch. Some pests produce eggs on the epidermis of the branches to form a ring-shaped egg or egg bag; others hide the silk branches in the silkworm cocoon, and then pupate hibernation. For these eggs, ova bags and pupae, pruning in the winter, they should be careful to crush them, remove or kneaded. Cicadas, celastrus, etc., often produce eggs in twigs, and release venom poisoning the young shoots. For pests eggs with branches, dry leaves, winter cut should be cut off burn. At the same time pay attention to collect, burn those who fall on the ground with egg foliage. two,