The law of occurrence:
The worms occur once a year in the Indochina area, and they hatch in the soil in the next year. The larvae begin to hatch in the following year. The larvae period is 30 days. In July, the adult insects were seen in the initial period and continued until October. The larvae mainly feed on the roots and weeds of the crops in the surface soil, and the adults eat the corn leaf meat. After the males feed on the corn silk, they affect the pollination of the corn and also harm the tender grains. Generally, the year of drought is heavier.
Prevention:
1. Agricultural control: Eradicate the weeds in the fields and drains in time.
2. Chemical control: Adults spray 49% chlorpyrifos emulsifiable concentrate 1000 times, or 20% fenvalerate emulsifiable concentrate 1500 times, or 2.5% lambda-cyhalothrin emulsifiable concentrate 1500 times. For corn fields with severe victimization, certain fungicides can be added, such as 70% thiophanate-methyl wettable powder 1000 times, or 70% mancozeb zinc wettable powder 800 times, or 50% carbendazim. Wet powder 500 times liquid, zinc deficiency field can add a certain zinc fertilizer.
Now that corn has entered the tasseling stage, the plants have grown to more than 2 meters in height. To protect the safety of pesticide application personnel, it is prohibited to use highly toxic pesticides such as dimethoate and parathion.
Soy products are processed foods made from beans such as soybeans, green beans, peas, and broad beans. Most soy products are tofu and its reconstituted soy milk.
China is the hometown of soybeans, and China has cultivated soybeans for five thousand years. It is also the first country to develop and produce soy products. For thousands of years, the ancient Chinese working people have used a variety of beans to create many far-reaching and widely circulated soy products, such as tofu, tofu, fermented bean curd, soy milk, soybean meal, soy sauce, bean sausage, bean curd, soybean fish, Ramie, cat ears, vegetarian wings, soy ears.
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