Because the use of apple flower thinning agent is unstable and harmful to the human body, it is not recommended to use, it is recommended to use plant growth regulators, the specific methods are as follows:
1. Method: spraying, soil application, and trunk application.
2. Dosage: Different fruit tree species have different dosages, use according to product instructions.
3. Time: Spraying can be done before the new shoots enter the rapid growth period, and the soil application is best in autumn.
4. Plant growth regulators are divided into growth agents and auxin, and auxin can be used if the tree is weak.
Attached: The flower thinning effect of apple flower thinning agent products is not ideal, the main reasons: first, it is related to the concentration ratio, and the other is greatly affected by temperature, orchard location, tree potential, and variety. If the user wants to use it for the first time, it must be tested on a small scale first, and it should be used in accordance with the instructions of the drug, paying special attention to the following requirements:
1. Select the agent and the appropriate concentration. Stone sulfur mixture, the concentration of stone sulfur mixture emulsifiable concentrate boiled by fruit farmers is 0.5-1 Baumé degree, the concentration of 45% crystalline stone sulfur mixture for commercial use is 150-200 times, the general spraying concentration of organic calcium preparation is 150-200 times, and the suitable spraying concentration of olive oil is 30-50g/L.
2. Spraying time: spray the first time at the beginning of full flowering (that is, when 75-85% of the central flower is open), spray the second time during the full flowering period (that is, when 75% of the flowers of the whole tree open), and spray once at the end of full flowering (that is, when more than 95% of the flowers of the whole tree are open).
How to use apple flower thinning agent is introduced here, I hope it will be helpful to everyone. If you want to buy high-quality and high-yield apples, you can download the Seed Bank App, and the country's excellent apple varieties are available for everyone to choose from.
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