How to Improve the Fruit Set Rate of Persimmon Trees? A Detailed Guide to Practical Methods
What methods can improve the fruit set rate of persimmon trees? Please give guidance. For persimmon trees, the following methods can be used to improve the fruit set rate: 1. Control of the persimmon fruit borer. 7-8 days after the persimmon tree begins to bloom (based on 1 flower opening in the persimmon orchard), you can choose 2.5% fenpropathrin 2500x solution, 21% fenvalerate 2500x solution, 10% duolaibao susp...
What methods can improve the fruit set rate of persimmon trees? Please give guidance
For persimmon trees, the following methods can be used to improve the fruit set rate:
1. Control of the persimmon fruit borer. 7-8 days after the persimmon tree begins to bloom (based on 1 flower opening in the persimmon orchard), you can choose 2.5% fenpropathrin 2500x solution, 21% fenvalerate 2500x solution, 10% duolaibao suspension concentrate 1000-2000x solution, 5% laifuling emulsifiable concentrate 2000x solution, 25% diflubenzuron No. 3 2000x solution, etc. for spray control. Rotating the pesticides gives better control results.
2. Improve the fruit set rate. (1) Plant Zenjimaru, which has male flowers, as a pollinator tree; pollinator trees should account for 10%-20% of the total number of trees. (2) Apply fertilizer and water before flowering. During the flowering period, spray a 0.1% borax solution with a 300 PPm gibberellin solution, or a 0.1% borax solution, 0.3% urea solution, and 0.5% monopotassium phosphate solution. (3) Slow down new shoot growth. When 50% of the flowers have opened, carry out girdling on the trunk or main branches.
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