Beet armyworm is the so-called cabbage brown moth, which seriously affects the normal growth of cabbage, green onion, cauliflower, Chinese cabbage, celery and other vegetables. Then change the beet armyworm? Let's take a look at it with Xiaobian.
The damage of beet armyworm
Spodoptera exigua is a polyphagous pest that is caused by larvae eating or stripping leaves. At the young age, it is often clustered in the heart leaves to damage the leaves, and then the leaves are dispersed.
Beet armyworm control method
1. Agricultural measures
Manually remove the egg mass, and deepen the serious field in the late autumn or early spring to eliminate the wintering.
2, chemical control
Beet armyworm has strong resistance to larvae. In the early stage of larval damage, 40% chrysanthemum, horse emulsifiable concentrate 2000-3000 times liquid, or 40% chrysanthemum emulsifiable concentrate 2000-3000 times liquid, or 10% cypermethrin EC 2000-3000 times liquid can be used. , or 5% agricultural dream emulsifiable concentrate 3000 times solution, or 50% phoxim emulsifiable concentrate 1500 times solution, or 10% Uranus emulsifiable concentrate 8000 ~ 10000 times solution, or 2.5% Kung Fu emulsifiable concentrate 4000 ~ 5000 times solution, or 20% off Sweeping emulsifiable concentrate 2000-3000 times liquid, or 20% Mapu Liike emulsifiable oil 3000 times liquid, or 21% killing 毙 emulsifiable milk 4000-5000 times liquid spray control, spraying once every 10 to 15 days, even spraying 2~3 You can do it twice.
More pesticide knowledge, please pay attention to China Pesticide Network
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