What bugs are there on the walnut tree? What medicine should I take?

Walnuts are rich in nutrition and have a beautiful meaning of "harmony, beauty and auspiciousness", so many flower friends like to plant walnuts around the yard. When the walnut tree grows, if it is not properly managed, it is easy to grow some bugs on the tree. What bugs are there? What medicine should I take? Sister Xia reveals the answers for you one by one.

1, the yellow thorn moth, also known as pepper, is called a little tiger here in Jinzhou, Shijiazhuang, Hebei Province, where Rong Jie is located, because it makes people feel very uncomfortable after being stabbed by this bug. This kind of yellow thorn moth often appears on walnut trees, jujube trees, pear trees, eyebrow beans and other crops. They mainly eat the lower epidermis and mesophyll of leaves, forming round transparent patches, and even seriously eat all the lower epidermis and mesophyll of leaves.

Control: For this kind of yellow thorn moth on the walnut tree, it can be treated with pesticides. Although the yellow thorn moth looks arrogant, it will cause unbearable pain when it falls on people, but once it encounters pesticides, it will roll off the horse's back.

Cypermethrin insecticides can be used in summer. As long as we follow the instructions, we can kill the yellow thorn moth. In addition, in winter, the yellow thorn moth will form eggs, and the outer skin is a hard and smooth oval wood ring. We can cut it off and take it from the walnut tree.

2. Red Spider Every summer, if the weather is too dry and the temperature is high, walnut trees are prone to red spiders. Once the red spider appears on the walnut tree, it will cause the leaves to turn yellow and then fall off one by one. So how do we treat Starscream?

Treatment of the red spider: After the red spider appears on the walnut tree, we can use fenpropathrin and abamectin alternately to prevent drug resistance, and when treating the red spider, we need to use the medicine on the opposite side of the leaf, because the red spider is usually on the opposite side of the walnut leaf. But the red spider on the walnut tree is still easy to cure. Just spray the medicine once or twice according to the instructions.

Also, we know that the appearance of red spider on walnut trees is mainly related to soil dryness, so we should water walnuts in time to prevent red spider from appearing again because the soil is too dry.

3. Walnut Hemiptera moth mainly injects larvae into walnut fruit. With the growth of the larva, it shuttles back and forth in the walnut and eats the walnut kernel inside, which leads to the blackening and depression of the murdered walnut skin, which leads to the dysplasia of the walnut kernel and the blackening of the skin, so it is called black walnut. In recent years, this kind of black walnut has appeared in many places, mainly walnut halflimb moth.

Walnut half-limb moth appears in walnut tree, which is closely related to soil moisture. There are weeds around walnut tree, so it should be cured in time after falling leaves. When there are Hemiptera larvae on walnut trees, we can spray you with 50% chlorfenapyr EC or 2.5% deltamethrin EC every 10~ 15 days, which can be well controlled.

4, aphids In addition, in spring, walnut trees are also prone to aphids. Aphids mainly suck young leaves of walnut trees, which leads to poor growth of walnut trees. So how to treat aphids?

When treating aphids on walnut trees, 40% imidacloprid 1500 to 2000 times or 2.5% deltamethrin 3000 times can be used for spraying treatment, which can play a good therapeutic role.

Walnut is delicious and nutritious, but some pests are easy to appear when cultivating walnut trees. As long as we know what pests are and then prescribe the right medicine, we can eliminate pests on walnut trees, and with reasonable management, we can make walnuts grow big and full. Does your family grow walnuts? How to manage walnut trees? Welcome flower friends to leave comments!