Flower protection, fruit protection and post-anthesis management of persimmon trees

Persimmon is a berry fruit of the persimmon family. The ripening season is around October. The fruit has many shapes, such as spherical, flat round, approximately conical 'square, etc., and different varieties range in color from light orange to deep orange red, with sizes ranging from 2 cm to 10 cm. The weight ranges from 100 grams to 350 grams. It is of origin in China and has been cultivated for more than a thousand years. Persimmon belongs to light-loving crops. Close planting should pay attention to ventilation and light transmission, which is the main measure of high-yield management. Persimmon results in axillary buds, so it is very important to remove strong long branches, strengthen nutrition accumulation of branches and stalks, pay attention to amino acid coating before flowering, promote flower bud differentiation, overcome big and small years, and promote trees to hang fruit early.

In view of persimmon branch stem, tung blight, horn spot and anthracnose infectious Chengde disease spot, it is suggested that fruit growers should take the following measures to prevent and control. The main results are as follows: 1. Meinongxin multi-element 1 jin or Si-Ca-mg-K fertilizer 1 jin was applied to each plant to restore healthy growth. 2. When using amino acid coating rod, Ningnanmycin or Beibo can be added. The method is to mix Ningnanmycin or Beibo into 50 times solution and amino acid mixed coating rod.

Measures to protect flowers and fruits: 1 spray "Yunda whole tree fruit" at 1/3 times + rich road boron 1000 times at intervals of 5 days, spray again. (2) spray "Baofengling" at 1/3 times of bloom + 1000 times of rich boron at intervals of 3mi and 5 days.

Prevention of corner spot, charcoal bureau and round spot disease after anthesis. 1. Carbendazim 2000 times + rich potassium 800 times + Jinke 1500 times; 2, isobacteria urea 6000 times + Haierfeng 800 times + Zhengshuai 1500 times; 3. Beibo (or Ningnanmycin) 800times + rich potassium 800times + complete victory 1500 times; 4,70% Haili produces 1000 times of thiophanate + 1500 times of Yunda (1500 times) + Kecko 800times; 5. Cuibei 7500 times + rich potassium 800times + Yundaanzhi 1500 times. Spraying Cuibei once can effectively control the occurrence of pathogen infection for 60 days, and spraying on branches can effectively prevent the occurrence of stem rot, charcoal bureau and angular spot disease.