Tianniu is a general term for the coleoptera multi-suborder Tianniu insects, also known as the sky buffalo, octagonal, hornworm, etc., there are many types of tianniu, the world knows more than 40,000 kinds, China also has about 3550 species, widely distributed, for the general harm, almost every tree is affected by different species of tianniu, today Xiaobian and everyone to take a look at the harm of the tianniu.
What does Tianniu eat?
Tianniu is a plant-eating insect, known to eat pollen, young bark, young branches, leaves, roots, sap, fruits, fungi and other different habits, flower cattle often feed on pollen, gully tianniu often eat young bark, young branches and leaves. Tianniu is the main pest of forestry, orchards, garden plants and construction timber, and will harm most pines, cypresses, willows, elms, walnuts, citrus, apples, peaches and teas, some cotton, wheat, corn, sorghum, sugarcane and hemp, and a few woods, buildings, houses and furniture.
What are the hazards of Tianniu?
The larvae of the celestial cow eat the trunk and branches, affecting the growth and development of the tree, weakening the tree, causing the invasion of pathogens and easily broken by the wind. When the damage is severe, the whole plant dies, the wood is mothed, and the process value is lost. In the larval stage, the tianniu moths the trunk, branches and roots, and some of them are harmful herbaceous plants, and the larvae live in the stems or roots, such as the chrysanthemum, the melon vine, etc. There are also a few species, the larvae do not live in the plant tissue, but in the soil to feed on the roots, such as large teeth and curved teeth sawing cattle, grass cattle and so on.
What are the species of Tianniu?
1, tiger tianniu: tiger tianniu is a pest, for the coleoptera tianniu family ridge tiger tianniu genus of insects, mainly including akebodis, mulberry tiger tianniu, grape tiger tianniu, qingyang ridge tiger tianniu, etc., adult insects appear in summer, living in medium altitude mountainous areas.
2, Star Cow: Star Cow is a kind of tianniu unique to Japan, China and South Korea, which can harm poplar trees, willow trees, elms, French plane trees, date trees, chestnuts and other trees, and is also the main pest of ziwei, plane trees and citrus.
3. Sawing cattle: Sawing cattle are insects of the sawn cattle genus of the Tianniu family, and the main host plants are coniferous trees, pines, fir, cypresses, quercus, beech, etc., distributed in Northeast China, Inner Mongolia, Hebei, Zhejiang, Sichuan, Taiwan and other places.
4, thin Tianniu: Thin Tianniu is a slender Tianniu insect of the Tianniu family, the main host plants are fir, spruce, linden pine, ichthyosaurus and other pine plants, distributed in the northeast, Zhejiang and other places, foreign distribution in the Soviet Union, North Korea, Sakhalin Island, Japan and other places.
5. Flower Tianniu: The Flower Tianniu is an insect of the Tianniu family, with a nearly square body, a short head and chest, a flat and wide elytra, a female insect significantly wider than the male, a head width less than the forebreast, a antennae not reaching the end of the elytra, and the fourth segment is shorter than the third or fifth segment.
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