蔬菜上刺吸式害虫有哪些绿色防控技术?

2025-03-16 15:21:57
推荐回答(2个)
回答1:

蔬菜上刺吸式害虫主要有蚜虫、粉虱等害虫,主要吸食蔬菜的液汁,导致蔬菜叶片出现各种斑点或变色、皱缩、卷曲,幼嫩枝梢变色萎蔫。

对蔬菜上刺吸式害虫的防治要按照有害生物综合治理的原则,以“预防为主,综合防治”为方针,对害虫进行有效、经济、安全的防治。具体方法如下:选育抗刺吸式害虫的蔬菜新品种;积极清园,减少虫源;调控保护地蔬菜的室内温、湿度,使其不适于害虫的发生;使用防虫网阻隔害虫迁入;悬挂黄板诱杀;使用植物源农药,如3%的天然除虫菊素和0.36%的苦参碱进行防治;最后,通过黄板诱集、直接调查等方法监测害虫的发生规律和发生量,在害虫发生密度达到防治指标时使用低毒高效的内吸性或触杀性化学农药进行防治。

回答2:

蔬菜上的刺吸式口器害虫主要有蚜虫、粉虱等,主要吸食蔬菜的汁液,导致蔬菜叶片出现各种斑点或变色、皱缩、卷曲,幼嫩枝梢变色萎蔫,传播病毒病。

绿色防控技术如下:选育抗刺吸式口器害虫的蔬菜新品种;积极清园,减少虫源;调控保护地蔬菜的室内温、湿度,使其不适宜害虫的发生;使用防虫网阻隔害虫迁入;悬挂黄板诱杀;使用植物源农药,如5%的天然除虫菊素和0.36%的苦参碱进行防治;最后,通过黄板诱集、直接调查等方法监测害虫的发生规律和发生量,在害虫发生密度达到防治指标时使用高效、低毒的内吸性或触杀性化学农药进行防治。

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