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蓟马类

蓟马类 烟蓟马 : 又名葱蓟马、棉蓟马、小白虫等，属缨翅目，蓟马科。是微小种类，一般体长 1~2mm, 体黑色、黄色或黄褐色。为害花、叶、果、枝、芽等，而以花卉上最多。蓟马除直接为害植物外，还能传播病毒病。. 1. 形态特征. 棉蓟马. 2. 生活史及习性 卵散产。成虫、若虫多在叶柄、叶脉附近为害。雌虫常孤雌生殖。雄成虫极少见到。干旱年份发生较重。 蓟马为害后，在叶正、反面均会出现失绿或黄褐色斑点、斑纹，叶组织变厚、变脆，向正面翻卷，或破裂，以至造成落叶，影响生长。花瓣也会出现失色和斑纹，从而影响质量。. 3. 防治方法 ： 3.1 清洁田园，清除杂草，减少虫源。

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蓟马类

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  1. 蓟马类 烟蓟马:又名葱蓟马、棉蓟马、小白虫等，属缨翅目，蓟马科。是微小种类，一般体长1~2mm, 体黑色、黄色或黄褐色。为害花、叶、果、枝、芽等，而以花卉上最多。蓟马除直接为害植物外，还能传播病毒病。

  2. 1.形态特征

  3. 棉蓟马

  4. 2.生活史及习性 卵散产。成虫、若虫多在叶柄、叶脉附近为害。雌虫常孤雌生殖。雄成虫极少见到。干旱年份发生较重。蓟马为害后，在叶正、反面均会出现失绿或黄褐色斑点、斑纹，叶组织变厚、变脆，向正面翻卷，或破裂，以至造成落叶，影响生长。花瓣也会出现失色和斑纹，从而影响质量。

  5. 3.防治方法： 3.1 清洁田园，清除杂草，减少虫源。 3.2 发生期喷洒80%敌敌畏乳剂1 000倍液，或40%氧化乐果乳剂1 500倍液，或25%三硫磷乳剂2000倍液。

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