How to solve the pest infestation of golden leaf ash tree during its growth? For example, red spider, aphids, etc., the next editor will introduce to you.
Red spiders, scale insects, aphids and other common features that harm ash trees are the yellow distribution on the leaf surface, which burns after withering, and the leaf surface has obvious changes. The leaf surface and leaf cover must be carefully observed to determine whether it is a pest or disease.
Red spider: insects are small, less than 1 mm, round or oval, orange or reddish brown. Because the size of the golden leaf ash tree flower is not easy to find, once it is found to be harmful, the flower tends to be more severely damaged. This pest uses its mouthparts to pierce the leaves of flowers to absorb juice, destroy their chlorophyll, and make grayish yellow spots or spots appear on the leaves, and make them yellow or even fall off to infect the flowers. The reproduction speed is very fast, 5 days per generation, which is a pest that needs to focus on pest control.
Scale insects damage the leaves, branches and fruits of the golden leaf ash tree. Scallops usually have wings in males and can fly. once the females and larvae appear, they live on the branches and leaves, causing the leaves to turn yellow, the twigs wither, and the tree's vitality decreases, which can easily cause cinder.
Aphids, also known as oil bugs and bees, are herbivorous insects and one of the most harmful pests on the earth. Among them, about 250 kinds of pests are harmful to agriculture, forestry and gardening. Adults or nymphs gather on the leaves, tender stems, growth points and the back of the flowers of the golden leaf ash tree. They use needle-like thorn suckers to absorb plant juice, destroy the cells, lose the growth balance, curl the back of the leaves, hinder the growth of the heart leaves, and even make them worse. The whole plant withered.