Mulberry Mulberry Wings
Scientific name Zamacra excavata (Dyar) Lepidoptera, Geometridae. Alias ​​mulberry-winged moth, walnut ulnar.
The main mulberry, apple, pear, sandalwood, walnut, date, Yang and so on.
The larvae feed on the nicks and holes, leaving only the main veins in severe cases.
Morphological characteristics Adult females are about 14-16mm in length, 46-48mm in wingspan, gray-brown in color, and filaments in antennae. In addition to the distal section of the abdomen, black and white round spots were found on both sides of each section. Hairy head and chest. The forewings have red and white markings, and the inside and outside lines are thick black. Each side of the outside line has an indistinct brown horizontal line. The front edge of the hind wing is curved and there is a black stripe in the middle. At the end of the abdomen there are 2 tufts. Males are slightly smaller, darker in color, feathery in their antennae, slightly narrower in their forewings, and similar in the rest. When the adult is still, four-winged folds are erected, hence the name. Oval oval, 1mm long, brown. The larvae are about 40 mm in length, with yellowish-brown heads, dark brown cheeks, green chest shields, and yellowish-white front edges. The body is green, with 1 pair of fleshy protuberances on the back of the 1st and 8th sections of the abdomen, l large and long fleshy protuberances on the 2-4 sections; the end of the protuberances is dark brown, with 1 yellow horizontal line along each side of the protuberance. On the back of the verses, there are two yellow and short sloping lines showing the shape of an "eight". There are one yellow vertical line at the sub-line between the protuberances of the 4 to 8 sections. From the 5th section, it gradually becomes silvery gray. Sections 1-5 on both sides of the lower edge of each meat protrusion, like feet. The hip plate is slightly trapezoidal with white sides and reddish-brown ends. The ventral line is a red-brown longitudinal band. The length is 13-17mm, short and thick, reddish-brown, slightly apical and caudal, with 2 breech. Semi-elliptic, silky, with dirt.
Living habits are born on behalf of the l-generation, with quail in the soil or the roots of the neck overwintering, the middle of March the following year began to emerge. Adults are lurking during the day and evening activities. Eggs are prolific on smooth branches, piled up and loosely arranged. Each female lays 600-1000 eggs. Incubate early in April. When the larvae are at rest, the head is often curled up to the ventral surface to the 5th abdominal node, and the stomach and foot are held on the branches. Mature larvae crawled to the base of the 6-9cm soil or root neck, put the bark spine knots pupa over the summer and overwintering.
Prevention methods (1) Overwintering, feathering, and excavation before excavating the tree. (2) Chemical control reference Zaojiao.
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