What should I do if Qiao Ben plants have moths?

Anoplophora longicorn is a medium to large insect with a cylindrical body and bright colors. Quilts often have hairs, thorns, etc. The antenna is very long. Larvae is cylindrical, thick and slightly flat, with white or yellowish white body. Adults feed on pollen, twigs and leaves. The harm of larva boring often hinders the normal growth of plants, even withers and dies, and often causes the invasion of other pests and germs, which are easily blown off by strong winds. The important species in the garden are Anoplophora glabripennis, Anoplophora glabripennis, Anoplophora punctata, Anoplophora, Anoplophora rosea, Anoplophora chrysanthemi and so on.

1. Monochamus alternatus

Morphological characteristics (1) The adult is 20 ~ 39 mm long, and the body surface and COLEOPTERA are dark and shiny. There are many small white spots on the coleoptera, and the base is densely covered with particles of different sizes. There are spikes on both sides of the chest and obvious tumors on the back plate. There is a bird pattern on the left and right of the front edge of the larva's chest, followed by a yellow-brown "convex" hard plate. Oval ivory will turn yellow before hatching. Pupa spindle-shaped, yellow and white.

(2) The life cycle is one generation a year, and the larvae overwinter in the trunk. Pupation began in mid-May, and adults appeared between May and July, often flying in the sun. After mating, the bite cortex forms an 8-shaped or σ-shaped gap near the ground. In each notch, a newly hatched larva lays eggs, first circling under the bark to eat, then eroding the xylem and gradually eroding the roots. At the beginning of June, 1 1, the larvae began to overwinter.

(3) Prevention and control methods

Catch the adults. After the adult emerges. Often eat twig bark to mate around noon on sunny days. In the first half of July, it is sunny, breezy and hot, at noon 1 1 ~ 14, which is the most active period for adults to mate and lay eggs, and the flight is weak, so it can be captured manually. Adults like to move in the sunny place at the top of the crown of Fraxinus mandshurica, citrus, Lagerstroemia indica, Azadirachta indica, jujube and Platanus acerifolia. It is easy to catch in the nursery, but difficult to catch in big trees such as parks and street trees.

At the peak of spawning in the middle and late July, you can find the eggs by looking for the carved grooves on the trunk of the tree, and then knock them out.

Hook the larva. Once a year in early August, once a year from late September to 65438+1early and middle October,165438+1late October, and the fourth time in late May of the following year. The fourth time is mainly to hook out the mature larvae after wintering.

Generally, drug injection is used in February of 1 1 ~ 12 and April to May of the following year. First, remove the sawdust from the insect manure with a knife, then inject 50 times of dichlorvos or trichlorfon into the notch and drain hole with a plastic oil spray pot, inject it from top to bottom, and then seal it with mud.

Reasonable thinning of branches can reduce the oviposition rate. Clear and cut down severely damaged ancient trees.

2. Anoplophora glabripennis

Morphological characteristics (1) The adult body length is 22 ~ 38 mm, and the male is slightly smaller. The body and COLEOPTERA are dark and shiny, there are many white spots on COLEOPTERA, there are no particles at the base, there are spikes on the chest, and the carapace is smooth. The back plate of the larva's chest looks like a front circle, light yellow. There are two convex hard plates with different sizes, which overlap each other, with the front big and the back small. Egg white, yellow-brown near hatching, long oval.

(2) The generation with a life history of 1 ~ 2 years overwinters in the trunk with eggs and larvae of different ages. Adults began to appear in early June. In July, eggs are mostly laid on branches, mostly on biennial branches, but they can be laid on trunks only 5 cm from the ground. First, bite an oval or lip-shaped groove in the cortex of the branch and lay an egg everywhere. The first instar larvae mainly feed on the rotten and deteriorated parts at the edge of the gap, the second instar larvae begin to feed on the sapwood parts in the transverse direction of the trunk, and the larvae after the third instar eat into the water quality department.

(3) Control methods Anoplophora glabripennis is most afraid of high temperature. Therefore, reasonable pruning and thinning in May-June every year can destroy the living environment of the trunk by increasing the temperature on the surface and inside, thus inhibiting its spawning and promoting the death of the newly hatched larvae. The rest can refer to the control of Monochamus alternatus.

3. Anoplophora glabripennis (also called Anoplophora glabripennis):

Morphological characteristics (1) The adult is 28 ~ 33mm long. The body shell is black, and the chest is reddish brown and shiny. Therefore, it was named Red-necked Anoplophora longicorn. There are/kloc-0 spikes on both sides of the chest and tumor-like protrusions on the back. The egg is oval, milky white and 6 ~ 7 mm long. Larvae is about 50 mm long. The first half of the body is slightly rectangular, and the second half is cylindrical. There is a brown rectangular protrusion in the middle of the front edge of the front chest backboard. The pupa is light yellow, about 10 mm long, with protrusions on both sides of the chest and two rows of holes on the back plate.

(2) Life history occurs every two to three years. Overwintering in wormholes as larvae. Adults appeared in June ~165438+10, and laid eggs on the trunk or branches of peach trees. The larvae feed under the skin after hatching, and enter the xylem in the following year to cause damage and discharge reddish-brown sawdust-like insect feces.

(3) The control method refers to the above-mentioned control of longicorn beetles.

4. Chrysanthemum longicorn beetle (also known as chrysanthemum tiger):

(1) Morphological characteristics The adult is 6 ~ 1 1mm long, cylindrical and black. There is a red and yellow oval spot in the center of the chest backboard. The abdomen and feet are orange, and there are sparse gray hairs on COLEOPTERA. The antenna of the male worm is slightly longer than the body, and the female worm is almost as long. Eggs are light yellow and rectangular. When mature, the worm is about 2 mm long, light yellow and footless. The pupa is 9 ~ 1 1mm long and yellowish brown.

(2) Life history occurs once a year. Overwintering as an adult in the root of chrysanthemum. From May to July of the following year, it emerged from important departments. Adults mate and lay eggs during the day. Larval stage is relatively long. By the end of August, the larvae pupate at the roots. It takes about 10 days from pupa to adult emergence. The adult bites into a small round scar about 1 inch below the tender tip to lay eggs, and the damaged tender tip withers. After the larvae hatch, they drill from top to bottom in the stem. Wormholes are drilled at the base of the stem to discharge feces. Larvae can also transmit damage. Injured stems cannot bloom, and some will die. .

(3) Prevention and control methods

(1) Cut off the tender buds, and then burn them centrally. Young worms should be uprooted in time after they are eaten dry.

② Spraying 1000 times of 5% carbaryl wettable powder in adult stage; Or 90% crystal trichlorfon 1000 times solution. Every 10 day, 2 ~ 3 times in a row. Source:/article/s/581094-313616-8.htm.