Find out three things before spraying

1. Find out the root cause of abnormal vegetable growth, and then take corresponding measures.

2. Different pesticides are selected at different times of occurrence of pests. For example, the use of protective agents before the occurrence of pests and diseases, and the use of systemic drugs in the early stage of the occurrence of diseases.

3. To master the timing and quality of medication, it is possible to achieve longer medication intervals.

Make five points when spraying

1. The choice of time for spraying medicine in winter: Generally it is sunny, around ten o'clock in the morning is better. During this time, the temperature in the vegetable greenhouse is rising, the plant growth is better, the absorption of pharmacology is better, and it is suitable for spraying.

2. After a long period of cloudy days turn clear, you cannot immediately spray drugs. The weather is just fine, and the photosynthesis of vegetable leaves is not strong for a long time, resulting in thin, yellow and tender leaves and weak fibrous tissue. At this time, the application of pesticides is very easy to cause phytotoxicity. You should let the vegetable greenhouses be ventilated for 1-2 days. Spray.

3. Choose to use a finer spray sheet or a sprayer with a better degree of atomization to spray evenly. Do not spray too much on the tender shoots and young parts of the crop, and do not spray directly at close range.

4. In winter, vegetable greenhouses have serious diseases in cloudy days. It is recommended to reduce the dilution concentration of the liquid medicine or reduce the total amount of medicine, and increase the spray interval.

5. Be cautious when spraying agents containing ingredients that inhibit crop growth. Generally, "azole" agents control a broad spectrum of diseases, and if they are used too much, they will inhibit the growth of vegetables, so be careful when using these agents.

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