The orchard has been in operation for 10 years, and the orchard has only been cleared once. Do you need to clear the orchard, and what should you do if you need to clear the orchard? Knowing this may save you a fortune.
1. Whether to clear the orchard: It's time for the orchard to clear the orchard in spring, and whether your orchard needs to be cleared or not depends on the occurrence of pests and diseases in your orchard in the previous year. If the pests and diseases of the previous year were severe, the garden should be cleared. If the orchard is young, resistant to disease, and has few or no pests and diseases, there is no need to clear the orchard. After all, there is a fee for clearing the garden. My orchard is not cleared every year, and I have only done it once in 10 years. The important thing is that the orchard that is not clear of the orchard must do a good job of spraying the flower buds during the red period, and it must be done in place, rather than spending more medicine, but also spraying carefully and thoughtfully.
2. Clearing time: generally 15 to 20 days before germination, depending on the local weather conditions, too early, the temperature is too low, which is not conducive to the efficacy of the drug; Too late, affect the pre-flower spraying.
3. Qingyuan Pharmacy: Generally use 3 5 Baumé stone sulfur mixture, which is an inorganic sulfur preparation that can kill insects and sterilize. You can boil it yourself, or you can go to the agricultural material store to buy crystal stone sulfur mixture. Perform a secondary dilution to the desired concentration before use.
4. Precautions: Stone sulfur mixture is an alkaline agent and cannot be mixed with other agents. Spraying is carried out on sunny and windless weather, when the temperature is 5 to 30 degrees Celsius.