What diseases are easy to occur after bayberry fruit picking? How to prevent and cure?

Red bayberry is a kind of fruit that many people like, sour and sweet, and people can't help swallowing saliva when they hear the word Waxberry. Every season when bayberry is ripe and on the market, fruit growers still can't take it lightly. During this period, bayberry is prone to diseases and insect pests. So, what diseases are easy to occur after bayberry fruit picking? How to prevent and cure?

June is the mature and picking period of red bayberry, which is attacked by many kinds of diseases and insects, such as brown spot, cancer, white rot, shell insects, fruit flies and so on. It is forbidden to spray chemical pesticides to control diseases and insect pests within 30-40 days before red bayberry harvest.

1. Brown spot

Clear the source of overwintering disease, sweep the fallen leaves and burn them, spray 3-5 Baumetu stone sulfur mixture once to eliminate the source of the disease. For the sake of pollution-free production safety, fruiting trees should be sprayed during the summer shoot germination period, that is, after fruit harvest, using 1000 times solution of 60% azolane Dysenlian (Baitai) or 1000 times solution of 70% propionate zinc (Antaisheng) or 42.8% fluorobacterium oxime fat (Lunassen) 2000 times, or 33.5% quinoline copper (must green) 1000 times solution, or 1Ranger 2200 Bordeaux solution and so on. Spray all over the canopy, branches, leaves and the ground.

2. Scale insects

Mainly cypress oyster scale, two generations a year, its occurrence area is large, serious damage, resulting in withered branches and leaves yellow, heavy the whole plant withered and died. The first generation of June is the peak incubation period, which coincides with the mature picking period of red bayberry, and pesticides can not be sprayed; the second generation eggs start from the middle of July, August is the peak period, and then spray control after harvest. 99%SK mineral oil (Luying) 300x solution + 22% Tefli 3000 fold solution can be used, or 48% Lexben 1200 fold solution, or 25% quinoline copper (Jieben) 1500 fold solution can be used. These agents can also be used in the early stage of fruit expansion.

Or when pruning in spring and autumn, cut off dead branches, dead branches and disease and insect branches and burn them centrally, which can reduce the number of insect population in the coming year and promote the emergence of new shoots of bayberry trees. At the same time, when clearing the garden in winter, 200x solution of 99%SK mineral oil or 3-5 Baumetulite sulfur mixture was used to kill overwintering scale insects.

3. Cancer disease

It can be prevented all the year round. First of all, scrape off the diseased tissue and apply 402 antibacterial agent plus sulfur suspension 100 times, or stone sulfur mixture, carbendazim glue suspension 5 times 10 times, and so on.

4. Drosophila

Important pests that damage fruits are common and begin to propagate rapidly in mid-May. 50% Qianke 2000 times liquid can be sprayed on the ground 15 days before fruit picking. The crown can be sprayed with 6% Ailushi 1500 times liquid, or trapping adults, smoking to kill adults and other methods.

5. White rot

Fruit rot during the picking period is a fungal disease. The mixture of Liwei Youguo nutrient solution 700x and 42.8% Lunassen 2000 times should be used about one month before fruit harvest, or 42.4% Jianda 2000 times solution should be sprayed on the crown, which can increase the firmness of the fruit and enhance the antibacterial activity.