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常见病虫害
主要疾病
1> 白粉病:叶子和茎的表面出现白色粉状的病菌,通常情况下叶片背面比正面多。黄瓜、南瓜、茄子等植株上常见。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0027_0001.jpg?sign=1738951763-5kfB5fdog8ipzPkrVSLfQwg9JqdJ0Tjs-0-b981f3cbc5ca20118d4bc676a190238f)
2> 灰霉病:低温高湿时易发此病。西红柿、茄子、黄瓜等植株上常见。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0027_0002.jpg?sign=1738951763-ZAQ2Bwg7kEpFS2CFcoFoXwLHfzP88BP7-0-813b1da3efde224945140bd816abb480)
3> 霜霉病:多发于高温高湿期,黄瓜植株常染此病。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0027_0003.jpg?sign=1738951763-9X0H9D5dm9YvTtRTLlWExOo1eBwmlfiL-0-bcd3dc59449dd0f7ade517c37f07f1b5)
4> 软腐病:发病晚期植株自行倾倒。卷心菜、白菜、萝卜等蔬菜常见此病。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0027_0004.jpg?sign=1738951763-tqHqmpSxHkVxZhOvwK0Uh5w6gCE9lvFh-0-8edba87ca12c3f16b353891b532d4495)
5> 花叶病:大多数蔬菜都有可能染上此病。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0027_0005.jpg?sign=1738951763-hqTbnSRQvYPPhO6wJZMUyz6NblQVDTxn-0-fc2e8b1c8d878e22585658323c7eea69)
6> 疫病:高温高湿时多发。西红柿、青椒等植株上常见。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0027_0006.jpg?sign=1738951763-6BKwl4BMIIU80zTtWhiq7RpyxAj8MXTP-0-6b5e1ce24984bf5cce0564cf183f290c)
主要虫害
1> 蚜虫:在叶片、嫩茎、花蕾、顶芽等部位成群地吸取汁液,严重时会导致植株死亡,多发于春、秋季。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0028_0001.jpg?sign=1738951763-a6Hafp0bR7r5VLsnpgl8uqyJ8T9qtg8a-0-b40756488b600f2b2257c368a71aba83)
2> 青虫:蝶和蛾的幼虫,主要危害十字花科蔬菜。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0028_0002.jpg?sign=1738951763-YzzKPGEcNsenSy9FWex6wJicZCpEEQpX-0-a67ce846768852766ed0e4ff4c28c283)
3> 夜盗虫:危害十分严重,多发于茎叶类植物。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0028_0003.jpg?sign=1738951763-j2gcvlOAW5hw933pCzwiUXQTJmE9N07J-0-633652dd529d4bc502019436df999d88)
4> 粉虱:多发于高温干燥时期,西红柿、茄子等植株上常发生。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0028_0004.jpg?sign=1738951763-7Hy3YuOrNQXupVA6NN7IxPHAo48CpSj0-0-353c01b3abeaca60e0769844f9f9ec80)
5> 红蜘蛛:吸取汁液,使叶片出现灰黄点或斑块,导致叶子枯萎、脱落。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0028_0005.jpg?sign=1738951763-5fqw5y040QmpPxBerPlT71EzqUldevpa-0-4131fbc7347bd112c10d319ab2c75b25)
6> 鼻涕虫:喜欢在夜晚和阴天时出来觅食,咬食菜叶和果实。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0029_0001.jpg?sign=1738951763-sViNkeHqNJgn0Wro7Ldgu3xCr1zONMSY-0-fbbd1bedb64d1e2cc5d72028820b6dc4)
7> 黄曲条跳甲:常危害叶菜类蔬菜。
![](https://epubservercos.yuewen.com/C44F85/6398897604537801/epubprivate/OEBPS/Images/figure_0029_0002.jpg?sign=1738951763-UuYmiVhrJhG3mUGgOZj8vYK6v6iU0J1x-0-3d9e023e9f9c50acb81017dd255a79b3)