防蟲(chóng)網(wǎng)目數(shù)與傳毒害害蟲(chóng)控制作用有正相關(guān),而蔬菜病毒病發(fā)病率之間有負(fù)相關(guān),各網(wǎng)目防蟲(chóng)網(wǎng)對(duì)傳毒害蟲(chóng)平均空毒作用約為90%,因此,防蟲(chóng)網(wǎng)可較為高校的抑制昆蟲(chóng)傳播而導(dǎo)致病毒病的發(fā)生;
隨著誘殺時(shí)間延長(zhǎng),防蟲(chóng)網(wǎng)上灰塵逐漸增多,影響到銀灰網(wǎng)避蚜效果和透光性。
覆網(wǎng)后有效地阻隔了害蟲(chóng)為害和傳毒,蔬菜病毒病發(fā)病少;覆網(wǎng)改善蔬菜的光照、溫度和濕度等生長(zhǎng)環(huán)境;