8 月 . 12, 2024 17:17 返回列表

防虫网的作用

防虫网就如同窗纱一样，具有抗拉强度高、抗紫外线、耐热、防水、防腐、抗老化等性能，无毒无味，使用寿命一般为4-6年，最长可达10年。它既具有遮阳网的优点，又克服了遮阳网的缺点，值得大力推广。

防虫网的作用

1.防霜冻

幼果期和果实成熟期的果树正处于霜冻季节和早春低温季节，极易遭受霜冻危害，造成冷害或冻害。防虫网覆盖不仅有利于提高网内温度和湿度，而且通过防虫网的隔离，可以防止果实表面的霜害，对枇杷幼果期的防冻害和柑橘成熟期的防寒害效果十分明显。

防虫网

2.病虫害防治

果园、苗圃覆盖防虫网后，病虫害的发生和传播途径水果害虫阻断蚜虫、木虱、吸果粘虫、肉食性昆虫及果蝇等害虫的传播，从而达到控制这些害虫，特别是蚜虫、木虱等媒介害虫的目的，对防治柑橘黄龙病、萎蔫病、火龙果病、蓝莓果蝇等疾病的传播起着重要作用。

3. 防止落果

Fruit ripening period is a rainstorm weather in summer. If anti insect netting is used to cover the fruit, it will reduce the fruit drop caused by rainstorm during fruit ripening period, especially in the rainy years of Pitaya fruit, blueberry and bayberry fruit ripening period, which has more obvious effect on reducing fruit drop.

4. 改善温度和光照

Covering anti insect netting can reduce light intensity, adjust soil temperature and air temperature and humidity, reduce precipitation in net room, reduce water evaporation in net room, and reduce transpiration of leaves. After covering anti insect netting, the relative humidity of air was higher than that of the control, and the humidity was the highest in rainy days, but the difference was the smallest and the increase was the lowest. With the increase of relative humidity in the net chamber, the transpiration of fruit trees like citrus leaves can be reduced. Water affects fruit quality development through precipitation and air relative humidity, which is more conducive to fruit growth and development, and fruit quality is good.

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防虫网