Beet armyworm is a common pest on cotton and one of the main pests that harm cotton. At present, beet armyworm is highly testable, and ordinary pesticides are also difficult to kill cotton beet armyworm. In the cotton field, beet armyworm insects, how to eliminate beet armyworm, what pesticides are used to kill beet armyworm? To eliminate beet armyworms, we can use a variety of control methods: Agricultural methods for controlling beet armyworms : Autumn ploughing or winter ploughing, deep turning the soil, can eliminate some winter cockroaches; remove weeds in March-April in spring, eliminate the first-instar larvae on weeds; combine field management, artificially pick eggs, remove leaves of newly hatched larvae, Centralized processing. Biological control of beet armyworm : The variety of natural enemies of beet armyworm is an important natural controlling factor. The pre-temperance control uses broad-spectrum pesticides to protect the natural enemies of vegetable fields. Common predatory natural enemies include various frogs, birds, apes, spiders, and crickets, crickets, crickets, crickets, grasshoppers, and ladybugs. Medicament control of beet armyworm larvae : Beet armyworm is the weakest resistance before the 2nd instar, and it is the best period for drug control. After 2 years of age, the insect resistance is enhanced. The larger the insect body, the stronger the drug resistance, the worse the drug control effect. In line with the principle of “treating and treating some cockroaches, early prevention and control. The most effective control method for beet armyworm is contact. Therefore, the effect of the pests on the surface of the leaves should be selected before 8:00 am or after 6:00 pm. The best, generally the sun is strong, the temperature is high, it is not suitable for medicine. This is because the pests have already lurked in the soil gaps and grasses at this time, and they can not be directly contacted and killed, and the control effect is not obvious. Floor Heating Special Extruded Board It is a rigid foam board made of polystyrene resin as raw material plus other raw materials and polymers, heated and mixed while injecting the catalyst, and then extruded and molded. Its scientific name is XPS Extruded Polystyrene Foam Insulation Board (XPS for short).Floor Heating XPS Foam Board has a perfect closed-cell honeycomb structure. This structure allows XPS boards to have extremely low water absorption (almost no water absorption), low thermal conductivity, high compression resistance, and aging resistance ( There is almost no aging decomposition phenomenon under normal use). XPS Extruded Board For Floor Mat,XPS Foam Insulation Boards,Floor Heating Special Xps Board Zhengzhou Ou Nuo Building Materials Co., Ltd. , https://www.jcyuounuo.com
What kind of pesticide can kill beet armyworm