The fungicide is used cautiously on cotton
When using fungicides to control cotton seedling diseases, pay attention to a few points.
1. The fungicides are mostly powders, emulsions and suspensions. It must be diluted and dissolved before application. The drug is first applied, then water is added, and then stirred with a stick. When mixed with other pesticides, the fungicide should be diluted and mixed with pesticides.
2. The fungicide cannot be mixed with alkaline pesticides. Do not arbitrarily increase or decrease the amount of use. The medicine should be used with the medicine.
3, the use of bactericide spray interval of 7 to 10 days spray once. For drugs that are not strong in adhesion and poor in systemic absorption, they should be sprayed after 3 hours of spraying and must be re-sprayed after rain.
4. Find out the nature of the fungicide. There are two types of fungicides, and fungicides for preventing plant diseases are also called protective agents, such as Bordeaux mixture, mancozeb, carbendazim, etc.; after plant onset, to kill or inhibit pathogens invading plants. The agent, also known as the therapeutic agent, has a good effect in the early stage of the onset, such as Heguoli, Baozhida and other compound fungicides.
5, the fungicide should be sprayed at 8 to 9 am, after 5 pm. Spraying at high temperature in the hot sun is not good for crop absorption, and the drug is easy to decompose and evaporate quickly.
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