Species hazards of the American white moth, is the American white moth poisonous?

The American white moth is not poisonous.

The American white moth (scientific name: Hyphantria cunea) is a white moth of the family Lamp Moth, a white moth with a female body length of 9-15 mm and a wingspan of 30-42 mm; Male moths are 9-13 mm long and have a wingspan of 25-36 mm.

Hazards:

The main thing that is terrible about the American white moth is that it is so harmful that it can eat up the leaves overnight when it breaks out; It has a wide range of transmission routes, and can be transmitted over long distances with goods and means of transportation; Serious disturbance to the people, the old mature larvae have the habit of entering farmers, residents' homes and public places to find food and pupate places to disturb the people.

Miscellaneous, which can harm more than 300 kinds of plants, including forest trees, fruit trees, flowers, vegetables, and crops; The reproduction capacity is large, a female moth can lay 800 to 2,000 eggs at a time, and the average annual breeding offspring is 30 million, up to 100 million; Adaptable, the larvae have a strong ability to tolerate hunger, and can reproduce normally without feeding for 15 days.

Seriously restricting the local economic development, once the American white moth is classified as an epidemic area, not only the transportation or export of agricultural and forestry products will be affected, but also all other industrial products with wood packaging will also be severely restricted, bringing great trouble to human life.

American white moth. Mainly to larvae feed on plant leaves, its feeding amount is large, when the damage is serious, the host plant leaves can be eaten up, and gnaw the bark, thereby weakening the tree's ability to resist damage and stress, seriously affect the growth of forest trees, and even invade farmland, harm crops, cause yield reduction, or even extinction, known as "smokeless fire".

The American white moth mainly feeds on plant leaves as larvae, and its feeding amount is large, and when the damage is serious, it can eat all the leaves of the host plant and eat the bark, thereby weakening the tree's ability to resist damage and stress, seriously affect the growth of forest trees, and even invade farmland, endanger crops, cause yield reduction, or even extinction, which is called "smokeless fire".

It has been determined that a larva feeds on about grams of leaves in its lifetime. Larvae and adults are easily spread over long distances with human activities, materials, vehicles, etc. From the perspective of monitoring, the American white moth mainly occurs in the centralized processing and distribution areas of wood, board and their products, and the transportation of personnel and vehicles has frequent exchanges with the outside world and a large amount of material flow.

Artificial control. Prevention and control of the egg stage: In the egg stage, the leaves with eggs can be removed by manual removal, centralized destruction and deep burial.

Larval stage control: According to the characteristics of the 4th instar larvae of the American white moth to spin silk and form a net before gathering in the net curtain for feeding, the net curtain can be manually cut and destroyed on the spot for control. At the peak of the 2-3 instar larvae in the net screen, the net is found behind the net and cut with tall branch scissors.

Pupal stage control: According to the habit of pupation under the tree of the old mature larvae of the American white moth, wheat straw, grain grass, etc. are used to form a tight and loose grass handle at the height of the trunk to lure the old mature larvae to pupate in it and destroy it in a centralized manner. In late autumn and early spring, dig up overwintering pupae and eliminate them intensively in tree cavities, bark cracks, dead branches and leaves, bricks and stones around trees, and tiles.

Adult stage control: the overwintering generation of adults occurs neatly, the flying power is weak, and they inhabit the walls, trunks and grass of buildings in the early morning and evening, and can be manually killed.

The American white moth is a typical polyphagous pest, which can feed on most broad-leaved trees, shrubs, flowers, vegetables, crops, weeds, etc.

It feeds a large amount, and when the damage is serious, it can eat all the leaves of the host plant and eat the bark, thereby weakening the tree's ability to resist damage and stress, seriously affect the growth of forest trees, and even invade farmland, endanger crops, resulting in reduced yield and harvest, and even extinction.

It is a worldwide quarantine pest that attracts worldwide attention. It mainly harms fruit trees, street trees and ornamental trees, especially broad-leaved trees. It causes serious harm to garden trees, economic forests, farmland shelterbelts, etc. Does not transmit human diseases.

There are many kinds of natural enemies of the American white moth in nature, among which there are two kinds of white moth with better parasitic rate and lower breeding cost, one is the white moth Zhou's rodent wasp, and the other is the white moth black base rodent wasp.

The white moth Zhou's rodent wasp is an insect of the genus Zhou's rodent wasp in the family Gilles, and is the dominant parasitic natural enemy in the pupal stage of the American white moth, with the advantages of high parasitism, strong reproductive ability, and large ratio of females to males. It is the first endoparasitic natural enemy insect found in the American white moth pupa, and was named by Chinese entomologist Professor Yang Zhongqi.

The white moth is an important natural enemy used in China to control the moth of Yang Xiaozhou, which has the advantages of high parasitic rate, strong fecundity and large ratio of females to males. It is mainly distributed in Heilongjiang, Jilin, Liaoning, Hebei, Shandong, Henan, Anhui, Jiangsu, Shanghai, Zhejiang, Jiangxi, Hubei, Hunan, Shaanxi, Sichuan, Guizhou and other provinces in China.