What is longan ghost broom disease?

What is longan ghost broom disease? Please introduce longan ghost broom disease: ◎ disease ◎ is also known as witches' broom disease. Bald branch disease, broom disease, Hu bud, leprosy, tiger ear and mute are distributed in Fujian, Guangdong, Guangxi, Zhejiang and Taiwan provinces (autonomous regions). The harm in Guangdong and Guangxi is lighter than that in Fujian. The flower ear and branch tip of the diseased tree grow malformed, the flower ear on the diseased branch tip can not bear fruit, the diseased tree is weak, the yield decreases year by year, and the perennial yield is reduced by 20% to 30%. In serious cases, there is no harvest at all, resulting in death. ◎ disease symptom ◎ is mainly harmful to spring shoots and spikes. The young leaves were damaged, the young leaves were narrow and light green, the leaf margin was curled and could not be expanded, the serious whole leaves were linear twisted, the adult leaves were damaged, and the petiolules of pinnately compound leaves often flattened and widened. The leaf is uneven, curly and wrinkled, the leaf tip, the leaf edge curls to the back of the leaf, the leaf vein is yellowish green (pulse bright), the light perspective shows that the veins are of different size and irregular yellowish green mottled. When the disease is serious, the tip leaves are linear deformed leaves, which can not be unfolded, smoke-brown, and sometimes have both abnormal leaves and normal-sized leaves on the branches, but the leaves are uneven and mottled obviously. The leaves of diseased trees are mostly all kinds of abnormal leaves, which are easy to fall off into bald branches. Click to get more longan planting techniques click to get more fruit planting techniques