How to control boxwood silkworm borer? The boxwood silk borer belongs to the insect class Lepidoptera borer family, and the distinguishing characteristics are as follows: The following methods can be used to control the boxwood silk borer:

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<h1>The boxwood silkworm borer belongs to the insect family Lepidoptera borer moth family, and the distinguishing characteristics are as follows:</h1>

1. Adults are 20-30 mm long and have a wingspan of 30-50 mm. The whole is covered with white scaly phosphorus sheets, thin and shiny. The leading, outer, and posterior margins of the forewings have purple-brown bands, and there are 2 white spots within the leading brown band, 1 small and 1 crescent-shaped. The male moth has dark brown hairs at the end of the abdomen.

2. The eggs are flat, oval, about 1.5 mm long, and the fish scales are arranged in blocks. Pale yellowish-green at first birth and dark brown near hatching.

3. Cooked time 35-42 mm long, head black brown, chest and abdomen thick green, dorsal line, sub-dorsal line, valve line dark green, the surface of the glossy hair and sparse bristles.

4. Pupal spindle-shaped, 18-20 mm long, initially emerald green, later pale cyan to white. The wing buds and compound eyes are black brown to black , with 8 gluteal spines at the end of the body , arranged in a row , and the apex curls into a hook.

The boxwood silkworm occurs in 3 generations per year in the Shanghai area, and the larvae overwinter in the buds formed by the bonding of the two leaves of the host plant (one of which is dead leaves). In early March of the following year, when the new leaves of boxwood first germinate, they begin to bud, and the larvae spit on the leaves in the new shoots to nibble on the leaf flesh, leaving a white membranous epidermis. The larvae grow up to eat whole leaves, mature in early and mid-May, spit out a mesh in the branches, and pupate in the net. Adults appear in late May. Adults are phototropic. The eggs are mostly laid on the underside of the leaves and are arranged in the form of fish scales.

<h1>The following methods can be used to control the boxwood silkworm borer:</h1>

1. Combine pruning to remove overwintering larvae;

2. Light booby-trapping during the adult stage;

3. During the initial incubation period of the larvae, spray urea III. 1500-2000 times liquid or Baicao No. 1 1000 times liquid.