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一、当前虫情据本市蔬菜病虫监测点调查,当前大白菜、甘蓝、菜花等十字花科蔬菜发生的害虫有甜菜夜蛾、菜青虫、小菜蛾、黄条跳甲、蚜虫、云斑粉蝶、斜纹夜蛾等,具体情况如下:甜菜夜蛾:虫田率63.6%,平均百株虫量为13头。以东部、南部发生量较大。菜青虫:虫田率51.5%,平均百株虫量为11头。小菜蛾:虫田率33.3%,平均百株虫量为9头。黄条跳甲:虫田率为60%,平均百株虫量为19头。蚜虫:虫田率为45.5%,平均百株虫量79头。
First, the current situation According to the survey of vegetable pests in the city survey, the current cabbage, cabbage, cauliflower and other pests of cruciferous vegetables beet armyworm, Pieris rapae, diamondback moth, beetle, aphids, cloud spots Cabbage butterflies, Spodoptera litura, the specific situation is as follows: Beet armyworm: worm field rate of 63.6%, an average of 100 insect population of 13 head. To the east, south occurred larger. Pieris rapae: worm field rate of 51.5%, an average of 100 insect population of 11. Plutella xylostella: The worm rate was 33.3%, with an average of nine hundred. Striped beetle: insect rate of 60%, an average of 100 worms for 19. Aphids: The rate of pest was 45.5% with an average of 79 parasites per hundred.