Adult golden caterpillars have a body length of 13-15 mm, white body and wings, and golden-yellow hairs at the end of the abdomen. Oval, grayish yellow. When the larva is mature, the body length is 25-35 mm, the background color is orange, and there are 2 pairs of black hair tumors on each segment of the back of the body, and the 2 hair tumors in the middle of the first and second segments of the abdomen merge into a horizontal band-shaped hair mass. Pupa brown, cocoons off-white, with larval hairs attached. 2-3 generations occur in 1 year. Overwinter as young larvae cocooning in cracks in branches and dead leaves. In the spring of the second year, overwintering larvae sting and damage tender buds and leaves, and adults appear from late May to mid-June. The female moth lays dozens of eggs on the branches, covered with a layer of yellow hairs. The newly hatched larvae gather and eat the mesophyll, and when they grow up, they disperse and damage the leaves. The second-generation adults appear from late July to late August. After mating and laying eggs, the hatched larvae feed soon after, and sneak into cracks in bark or cocoon in dead leaves to survive the winter.
Prevention methods:
① Scrape bark in winter to prevent overwintering larvae;
② When the larvae are infested, they must be hunted manually. When there are many occurrences, they can be controlled by spraying diflubenzuron III, Green Kung Fu and other chemicals.
