What diseases and pests does Chun Yu have?

Symptoms of Spring Feather Diseases and Pests

The main symptoms of diseases and pests of spring fern include yellowing of leaves, withering of leaves, scorching of leaves, and scars on leaves. In addition, there are obvious signs of insect bites. In short, the appearance and symptoms of diseases and pests of spring fern are obvious and easy to detect, but prevention is better than cure. Try not to wait until symptoms appear before treatment. Therefore, it is necessary to understand the common types of diseases and pests of spring fern and the prevention methods, with prevention as the main approach and treatment as the auxiliary approach.

Types of diseases and pests of spring feathers

Generally speaking, plant pests and diseases are divided into diseases and insect pests.

Common diseases of spring fern include leaf spot, anthracnose, etc. Relatively speaking, leaf spot is more common than anthracnose. The main symptoms of spring feather leaf spot disease are nearly circular leaf spots, brown to reddish brown, dark brown edges, yellow halos on the outside, faint reddish-brown rings on the spot surface, and needle-sized spots clustered on the spots.

Common insect pests of spring fern include red spider mites and scale insects. Relatively speaking, scale insects are more common than red spider mites. The reason for the appearance of red spider mites is most likely low air humidity, while the reason for the appearance of scale insects is most likely poor ventilation.

Treatment methods for spring feather diseases and pests

For diseases such as spring feather leaf spot and anthracnose, wettable powders such as polychlorbide, methyl thiophanate, and mancozeb can be used for prevention and control. Leaf spot is more common than anthracnose. Specifically, leaf spot disease needs to be prevented and controlled by spraying 1000 times diluted 50% polychlorinated fungus.

For pests such as spring red spider mites and scale insects, you can spray special pesticides for prevention and control. Specifically, scale insects need to be controlled by spraying 1000 times diluted 50% oxydemeton-methyl emulsifiable concentrate. In addition, when preventing red spider mites, it is necessary to increase the air humidity, and scale insects can be prevented by increasing ventilation.

In addition, if the leaves appear yellow, dry or burnt, they need to be pruned in time.