Control methods of blueberry berries

Blueberry has high nutritional value and is very popular with consumers in the market. However, it is one of the most serious diseases in planting, which will seriously affect the yield of blueberry and cause greater economic losses to farmers. So what is the reason for blueberry jelly? How to prevent it? Let's take a look at the detailed introduction.

1. Stiffened fruit symptoms

Dead fruit is a disease caused by fungi. In the early stage of the disease, mature spores of the fungus will germinate on the surface of new leaves or flowers, hypha will develop on the surface of flowers and leaves, causing cell rupture and death, resulting in sudden withering and browning of leaves, buds and flowers. After a period of time, fungal spores will produce powder to cover leaves, stems and styles, and at the same time will spread like flowers that have already opened, and carry out secondary transmission, eventually causing fruit to wilt, lose water, dry and stiff.

2, the incidence of law

After overwintering, if the fallen fruit is not cleaned in time, its spores will germinate again, and in the second year it is a cycle of damage. The occurrence of fruit rot is related to climate and species. It is serious in rainy and high temperature areas in early spring, and more serious in cold and long winter areas. Different varieties will have different degrees of disease, some varieties of disease resistance is weak, easy to get sick when the disease occurs, and some varieties of disease resistance is strong, not easy to get sick.

3. Prevention and control methods

First of all, we should select varieties with strong disease resistance to plant, reduce the probability of infection, do a good job of garden cleaning before wintering, burn or bury the fallen leaves and fruits in the orchard, reduce pathogenic bacteria and reduce the possibility of disease. Shallow tillage and fertilizer application before spring flowering can reduce disease occurrence. When the disease occurs, the diseased leaves or flowers should be removed in time to prevent the disease from continuing to spread, and at the same time, agents can be sprayed to prevent it. Spraying urea solution in early spring will reduce the incidence of disease. Spraying azinam before flowering can avoid plant infestation, and the effective rate is more than 90%.

The above is an introduction to the control method of blueberry stiff fruit. I hope it can help you. If you want to know more about it, please pay attention to us.