How to improve the fruit set rate of persimmon trees? Sharing practical methods
How to improve the fruit set rate of persimmon trees? Please give an introduction to the methods. To improve the fruit set rate of persimmon trees, you can refer to the following methods: 1. Control the persimmon fruit borer. 7 to 8 days after the persimmon tree begins to bloom (based on 1 flower blooming in the persimmon orchard), you can choose 2.5% fenpropathrin 2500x solution, 21% fenvalerate 2500x solution, 10% duo...
How to improve the fruit set rate of persimmon trees? Please give an introduction to the methods
To improve the fruit set rate of persimmon trees, you can refer to the following methods:
1. Control the persimmon fruit borer. 7 to 8 days after the persimmon tree begins to bloom (based on 1 flower blooming 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 a better control effect.
2. Improve the fruit set rate
(1) Plant Zenjimaru, which has male flowers, as a pollinizer tree. Pollinizer trees should account for 10%-20% of the total number of trees.
(2) Topdress and water before flowering. During the flowering period, spray 0.1% borax solution and 300PPm gibberellin solution, or 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, perform girdling on the trunk or main branches.
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