In recent years,vegetable growers in greenhouses have found that diseases and insect pests are becoming more and more serious,and more and more medicines are used,but it is very difficult to prevent and control them.A large amount of human and financial resources are wasted,and the economic benefits of vegetables can not be guaranteed,which leads to the loss of money seriously.
近年來(lái)，大棚菜農(nóng)發(fā)現(xiàn)病蟲(chóng)害日趨嚴(yán)重，用藥越來(lái)越多，但防治難度很大。浪費(fèi)了大量的人力、財(cái)力，蔬菜的經(jīng)濟(jì)效益得不到保障，造成了嚴(yán)重的經(jīng)濟(jì)損失。
So,is there any effective method to control the occurrence of diseases and insect pests!However,many vegetable growers don't want to invest or use it incorrectly,which will lead to a large area of vegetables infected with diseases and insect pests.
那么，有沒(méi)有什么有效的方法來(lái)控制病蟲(chóng)害的發(fā)生呢！然而，許多菜農(nóng)不愿投資或錯(cuò)誤使用，這將導(dǎo)致蔬菜大面積病蟲(chóng)害的發(fā)生。
Insect net
蚊帳
1.The function of insect proof net:1
1防蟲(chóng)網(wǎng)的功能：1
?、賂he results showed that,after covered with insect proof net,the pests of Pieris rapae,diamondback moth,cabbage armyworm,Spodoptera litura,scarab beetle,ape leaf beetle,aphid and other pests can be basically avoided,and the pest control effect can reach more than 90%.
①結(jié)果表明，采用防蟲(chóng)網(wǎng)覆蓋后，可基本防治菜青蟲(chóng)、小菜蛾、甘藍(lán)粘蟲(chóng)、斜紋夜蛾、金龜子、猿葉甲蟲(chóng)、蚜蟲(chóng)等害蟲(chóng)，防治效果可達(dá)90%以上。
Insect net
蚊帳
?、赩irus disease prevention is a catastrophic disease on many vegetables,mainly transmitted by insects,especially aphids.The installation of insect net can cut off the transmission route of insect pests,thus greatly reducing the infection of vegetable virus,and the control effect is about 85%.
②病毒病防治是許多蔬菜上的一種災(zāi)難性病害，主要由昆蟲(chóng)尤其是蚜蟲(chóng)傳播。安裝防蟲(chóng)網(wǎng)可以切斷害蟲(chóng)的傳播途徑，從而大大減少蔬菜病毒的感染，防治效果在85%左右。
2.Pay attention to the following when purchasing insect proof net:
2購(gòu)買(mǎi)防蟲(chóng)網(wǎng)時(shí)應(yīng)注意以下事項(xiàng)：
In vegetable production,25-40 mesh is suitable and the width is 1-1.8m.The results showed that the effect of white or silver gray net was better.The main function of insect proof net is to prevent insects.Its effect is related to the mesh number of insect proof net.The more mesh,the better the effect of insect control.However,too much mesh will affect the ventilation effect.The use of insect proof nets must pay attention to sealing,otherwise it is difficult to achieve the effect of insect control.
在蔬菜生產(chǎn)中，以25～40目為宜，寬度為1～1.8m，結(jié)果表明，白色或銀灰色網(wǎng)效果較好。防蟲(chóng)網(wǎng)的主要功能是防蟲(chóng)。其效果與防蟲(chóng)網(wǎng)的網(wǎng)目數(shù)有關(guān)。網(wǎng)目越多，防蟲(chóng)效果越好。但是，過(guò)多的網(wǎng)眼會(huì)影響通風(fēng)效果。使用防蟲(chóng)網(wǎng)一定要注意密封，否則很難達(dá)到防蟲(chóng)的效果。
In order to improve the effect of pest control,it is necessary to pay attention to the fact that the net has less shading,so it is not necessary to cover the net day and night or cover it before and after.It should be covered throughout the whole process,so as not to give pests the chance to invade.
為了提高病蟲(chóng)害防治效果，需要注意的是，網(wǎng)子遮光較少，所以不必晝夜覆蓋，也不必前后覆蓋。全程覆蓋，以免給害蟲(chóng)帶來(lái)入侵的機(jī)會(huì)。
