Are you ready to deal with the "dancing poison moth" that hurts more than 500 kinds of plants in the garden?

Dancing poison moth is a lepidoptera poisonous moth family, mainly endangering more than 500 kinds of plants such as poplar, willow and mulberry, is an important leaf-eating pest that harms the garden, the larvae mainly harm the leaves, the insect has a large amount of food, eating miscellaneous, and can eat the whole leaf leaves when it is serious. Therefore, the prevention and control work is imminent, and this article introduces in detail the occurrence law and control methods of the dancing poison moth.

[1] Morphological characteristics

Adult dancing moth: female adult body length of about 25 mm, wingspan of 55 to 75 mm, dirty white, antennae double ctenophoric, brown spots on the forewings; males are about 20 mm long, wingspan of 40 to 55 mm, brown, antennae feathery, forewings light yellow, inner horizontal line, middle horizontal line, outer horizontal line and sub-margin line are dark brown.

Egg: about 0.9 mm in diameter, flattened and round, grayish-white at first birth, gradually purple-brown after birth, covered with yellow-brown hairs on the egg blocks.

Larvae: 50 to 70 mm in length. The young larvae are yellowish brown, the old larvae are dark brown, the head is yellowish brown, there are figure-eight black stripes on the front, there are 2 columns of hairs on the back of the body, 1 to 5 hairs are blue, and 6 to 11 hair tumors are orange-red. Each hair has brownish-black hairs on it, and the hairs on the sides of the body are longer.

Pupae: 21 to 26 mm long, yellow-brown or reddish brown, spindle-shaped, with yellow hairs on the back of the ventral segment and hook-like protrusions at the end of the abdomen.

【2】Biological characteristics

It occurs in 1 generation per year and overwinters with eggs in crevices in rock blocks or in puddles on the back of tree trunks. The overwintering eggs hatch in May of the following year, and the hatching larvae have a habit of clustering and dispersing as they grow up. Infested into early and mid-July, the mature larvae pupate in the trunk cracks, branches, dead leaves, etc. In mid-July, adult moths occur, and the male moths are good at flying, and often rotate and fly in groups during the day. Eggs are mostly laid on the tree on the shady side of the branches, and each female lays 1 to 2 eggs, hundreds of eggs per piece, covered with yellow-brown scales at the end of the female moth's abdomen.

[3] Prevention and control methods

1. Strengthen management: Conduct a thorough clearance of the garden. Weeds are eradicated, the plants are pruned whole, dead branches, stumps, diseases and insect pests are cut off, and burned in a concentrated manner.

2. Biological control: release the natural enemies of the dancing poison moth such as the black tumor bee, the curly leaf moth bee, the caterpillar chase bee, the large leg wasp, etc.

3. Chemical control: It is recommended to use the royal moth during the occurrence of pests, dilute the agent 800-1000 times the liquid, and spray control.