Are longhorns afraid of birds Do longhorns have natural enemies?

Of course, the longhorn is afraid of birds.

The longhorn beetle, a general term for insects of the multiphagous suborder longhorn beetle, has chewing mouthparts and has long antennae, often exceeding the length of the body. Its larvae live in wood and can be harmful to trees or buildings.

The longhorn beetle is a herbivorous insect, which will harm woody plants, most of the pine, cypress, willow, elm, walnut, citrus, apple, peach and tea, etc., some cotton, wheat, corn, sorghum, sugarcane and hemp, etc., a few wood, buildings, houses and furniture, etc., are the main pests on forestry production, crop cultivation and building wood.

The longhorn beetle generally overwinters in the trunk of a tree as a larvae or adult. After the adult worm emerges, some need to supplement nutrition, eating pollen, young branches, young leaves, bark, sap or fruits, fungi, etc., and some do not need to supplement nutrition. The lifespan of adults is generally more than 10 days to 1 to 2 months; However, adults overwinter in the pupal chamber for up to 7 to 8 months, and males have a shorter lifespan than females.

The activity time of adults is related to the thickness and thinness of the small eye surface of the compound eye, which is generally thick, mostly active at night, and has phototaxis; Small eyes and thin faces, mostly live during the day.

Move. The oviposition mode of adult worms is related to the form of mouthparts, and generally the adult of the anterior mouth type lays eggs directly into the rough bark or cracks when laying eggs; The adult worm with a lower mouth first bites into a groove on the trunk of the tree and lays its eggs in the groove. The longhorn beetle mainly feeds on larvae, lives the longest, and causes the most serious damage to the trunk.

When the eggs hatch out of the larvae, the first instar larvae are bored into the trunk of the tree, initially feed under the bark, and after the inage increases, they burrow into the xylem for damage, and some species only stay under the bark to live, not into the xylem. The larvae move within the trunk of the tree, and the shape and length of the moth-eating tunnels vary from species to species. The larvae feed on the trunk or branches, opening their mouths into the bark at a certain distance as vents, pushing out excrement and wood chips.

When the larvae reach maturity, they form a wide pupal chamber, which is clogged with fibers and sawdust at both ends, and pupates in it. The pupal stage is about 10 to more than 20 days.

The larvae of the longhorn beetle eat the trunk and branches, affecting the growth and development of the tree, weakening the tree, leading to the invasion of germs, and it is also easy to be broken by the wind. When the damage is severe, the whole plant dies, the wood is bored, and the process value is lost. The longhorn beetle is mainly a pest of woody plants, eating away at tree trunks, branches and roots during the larval stage.

Some of them are harmful herbaceous plants, and the larvae live in the stems or roots, such as chrysanthemum beetle, melon vine beetle, etc. Some species, such as the cotton capsule, are harmful to the cotton capsule. There are also a few species where the larvae do not live in plant tissues, but feed on roots in the soil, such as the big tooth and the curved tooth saw longhorn, the grass longhorn and so on.

Of course, it is afraid, and the longhorn itself must be afraid of birds, because birds are the natural enemies of the longhorn beetle, and if the longhorn cow encounters a bird outside, it is very likely to be eaten by the bird.

The difference between the female and the female is that the throat is brown with a white midline, rather than a white throat, and the two wings are orange instead of yellow. During the breeding period, beetles, small silverfish, and longhorn beetles are mainly unknown for the time being, and we will check again tomorrow. Remember to put it away when it gets warmer, it may have children to raise.

En · · I know.

Tube's swollen-legged wasp. It can absorb the nutrients of the larvae of the longhorn beetle and then kill the longhorn beetle through the "parasitic" method.

The natural predators of the Celestial Bull are:

It is an important parasitic natural enemy of a variety of dry-boring pests such as longhorn beetle, and plays an important role in controlling the damage of longhorn beetle. The swollen-legged wasp can pass the "parasitic" method through the "parasitic" method, absorb the nutrients of the larvae of the longhorn beetle and then kill the longhorn beetle.

In recent years, the fastest research on the prevention and control of longhorn beetle has been the utilization of swollen-legged wasps. Since 1973 in the insect tract of Guangdong coarse sheath C. longifolia, and in 1975 in Shandong Qingyang longhorn insect tumor found in the swollen-legged wasp, Guangdong, Shandong, Hunan, Hebei, Beijing, Shanghai and other places have carried out experiments on coarse sheath double longhorn longhorn, Qingyang longhorn, Xingtianniu and so on. Artificial feed trials have also begun.

The results of the abolition of bees in the field have a positive effect.

1. Star BullThe star beetle is the most common type of beetle. The extra-long antennae, white speckled state air model on the wing sheath is the most distinctive feature of the star beetle. Adults appear from May to July and can be found on willow-lined roads.

2. Shi Zi Rong Tian NiuWhen I met this "rough" insect, I really didn't know what kind of insect it was, and thought it was just molting or mending some kind of parasitic insect. A rare longhorn beetle.

3. Yellow halo wide-mouthed longhornIt belongs to the most colorful longhorn beetle, which lives in the tropics.

4. Tiger TianniuThere are many kinds of tiger cattle. The common features are: yellow-brown on the back of the body, and different black stripes on the wing sheaths.

5. Ramie double-ridged longhornBody length is about 15mm; Black, covered in turquoise fluff and decorated with black markings.

6. Broad-banded flax beetleAlso known as: deficit broadband star-spotted longhorn. Body length 13mm.

7. Three mountain beetlesBody length 40 50 mm. Among the longhorn beetles, they are considered to be larger.

8. Asian brown beetleThe body length is 12-14mm, and the body color is reddish-brown.

9. Green banded longhorn beetleAlso known as: Green Striped Sky Cow. Body length 18-37 mm.

10, Huangxing Jishan TianniuAlso known as: Huang Xingji deep mountain cow. The length of the book is 25mm.

Most of the celestial bulls can fly.

There are also a small number of species with degenerate hindwings.

Loss of ability to fly.

As for why it doesn't fly in your hands ... Not necessarily.

It often flies away.