What if there are worms in the leaves of the rich tree?

The scientific name of the rich tree is melon chestnut, which is a kind of tree of the genus Chestnut in the kapok family. It originated from Mexico to Costa Rica in Central America and was introduced into China in the 1960s. Now it is widely cultivated in Yunnan, Hainan, Fujian and other places in China. Because of its auspicious meaning and beautiful tree shape, it is easy to manage and is very popular in the market. What about the worms in the leaves of the rich tree?

I. the main insect pests of rich trees and their control measures

The main pests of the rich tree are sugarcane flat moth, scale insect, red spider and root rot nematode and so on. when the leaf pest occurs, the type of pest should be determined according to the specific symptoms, and targeted measures should be taken to administer the drug.

The sugarcane moth, a species of the genus Plutella, was listed as an alien invasive species in China in 2002. It is a borer that eats the plant cortex. Its larvae survive the winter in the basin soil and eat the bark and leaves of tree species after getting warmer in spring. The main means of chemical control is to spray or irrigate plants regularly with 1000 times of omethoate or 2000 times of imidacloprid.

In the process of cultivating a rich tree, ants usually climb all over the tree. Although ants basically do not affect the growth of wealth trees, they have a great impact on the merchandise of finished products. It can be killed by artificial capture, and the main means of chemical control is that 2000 imidacloprid solution is sprayed or irrigated regularly, or 3% phoxim granules can be sprayed in the basin.

Red spider, also known as cotton red spider, is widely distributed in China, mainly harming many kinds of vegetable crops, such as Solanaceae, Cucurbitaceae, Leguminosae, Liliaceae and so on. The damage is usually the most serious from late June to early July, and the common symptom is the yellowing and whitening of the whole tree leaves. The main method of chemical control is to spray evenly with 4000-5000 times of mite risk or 1000-1500 times of 40% diclofenac EC and 2000 times of 20% mifenjing wettable powder.

Root rot nematodes, also known as short-body nematodes, are distributed all over the world, mainly harming the roots and other underground organs of host plants, occasionally infecting aboveground parts such as stems, leaves and fruits, and the tissues of the infected parts become dark brown, flooded and scarred on the surface. the main drug treatment is to use non-fumigating nematicidal agents such as gram line phosphorus, gram line Dan, Milol, methamidophos and so on.

The above is some relevant knowledge about the pests of the rich tree, which should be checked frequently when planting the rich tree, so as not to cause the death of the rich tree because of carelessness.