The scientific name mulberry caterpillar is two kinds of golden caterpillars and larvae. The ecological subspecies of the larvae of the golden caterpillar is very similar to that of the venom. The golden caterpillar Porthesia (Euproctis) Similis xanthocampa Dyar. Porthesia (Euproctis) similis (Fuessly) are Lepidoptera, genus Moth. Alias ​​brown spotted moth, white tussock moth, mulberry moth, yellow tail moth and so on. Distribution of domestic planting mulberry areas, Jiangsu, Zhejiang, Anhui, Guangdong, Sichuan victims. The main mulberry, apple, pear, peach, hawthorn, apricot, plum, date, persimmon, chestnut, jellyfish, cherry, willow and so on. The larvae of newly hatched larvae clustered on the back of the mulberry leaves to feed on the leaves of the mulberry leaves, and the leaves were ready to block into transparent spots. After the third instar, the larvae dispersed and infested to form large nicks, leaving only the veins. Injury to the mulberry spring buds, many from the outer layer inwardly, causing winter buds withered, affecting the spring silkworm rearing. The insect poisonous hair touches the silkworm body and causes silkworm poisoning and induces black spot disease. The human body is exposed to poisonous hair and often causes dermatitis, and some cause lymphatic inflammation. Life style Inner Mongolia Daxinganling Annual l generation, Liaoning, Shanxi 2 generations, Shanghai 3 generations, East China, Central China 3-4 generations, Guizhou 4th generation, Pearl River Delta 6 generations, mainly 3rd instar or 4th instar larvae in dead leaves, trees The cicadas, trunk gaps and deciduous pods are overwintering; the 2nd generation area begins its activities in April of the following year, injuring the spring buds and leaves. The peak period of the first, second and third generations of larvae was mainly in mid-June, August and mid-September, mid-September and early winter and early October. Adults lurk in the lower part of the leaves during the day and fly out of the evening, mating, spawning and laying eggs on the back of the leaves to form long strips of eggs. Adults live 7-17 days. Each female spawned 149-68l grain, egg period 4-7 days. The larvae molt 5i7 times, the duration of 20-37 days, overwintering up to 250 days. The newly-hatched larvae clustered on the backs of the leaves and died from food damage. After 3 and 4 years of age, the leaves were scattered and damaged. They had a dead-dead nature, and they were matured and had many leafy leaves or pods and pods in the cracks in the trunk of the leaves or soil seams near the ground. 7-12 days. Natural enemies mainly include black egg bees, big-horned bees, small-scale moss-flying insects, and mulberry caterpillars. Control methods (1) In the winter, the mulberry garden scratches the old bark, cuts off the rough skin near the cut edge, and eliminates the overwintering larvae. (2) The severe mulberry field of mulberry caterpillar should be removed from the artificially removed egg mass to remove the “coccoth caterpillar†in time. That is, when the young instar larvae are concentrated on one leaf, it is continuously removed 2-3 times. Can get twice the result with half the effort. (3) Master the spraying of mulberry polyhedra virus in the peak period of the 2nd instar larvae. Each ml contains 15,000 particles of suspension and 20L of spray per 667m2. (4) After the autumn silkworm has used up the leaves, promptly spray 2.5% of the enemy killing EC or 20% of the speed killing 3,000 times of diced EC, 10% of Uranus EC or 2.5% of KF 4,000 to 5,000 times. Liquid, reduce the damage of the next year, lay a close worm. (5) In the early spring when the pests are used before the pests are sprayed out, 50% chlorfenulfuron 500-lOoo times or 25% carbazols 1000-1500 times is sprayed, which means that the pests are treated with white strips. (6) During spring and summer and early autumn feeding silkworms, spray 90% crystal trichlorfon 1000 times or 80% dichlorvos EC 1500 times, 50% phoxim EC 1000 times, and 60% double-effect phosphorous 1500 times. (7) When necessary, 48% chlorpyrifos EC may be sprayed 1300 times or 10% imidacloprid wettable powder 2500 times and 5% Ruijinte EC 1000 times. The residual period is 13 days, which is safe for silkworms. Influenza Vaccine,Influenza Vaccine Development,Influenza Vaccine Strains,Flu Vaccine Changchun BCHT Biotechnology Co.,Ltd , https://www.ccbcht.net
Morphological characteristics Adult caterpillar adult female body length 14-18mm, wing exhibition 36-40mm; male body length 12-14mm, 28-28mm wingspan. All white. Compound eye black. The markings on the female forewings near the hips and the male forewings near the hip and near the base are generally brown. The spotted moth is dark brown. Egg diameter 0.6-0.7mm, gray, oblate, egg-shaped strips, covered with yellow body hair. The larvae have a body length of 26-40 mm, a dark brown head and a yellow body, while the larvae of the larvae are mostly black. The top line is red, the top line, the valve line, and the valve line are dark brown, all of which are intermittent; the pronotum has two black vertical stripes, and each section of the tumor has the same situation as the thief moth. A large pair of large tumors on the chest and tufts on the lower and the fourth abdominal segment of the thorax were red. The other tumours on the back of each segment had a black fluffy appearance. The length 9 is 11.5mm. The dragonfly is 13-18mm long and its color and shape are the same as the larvae. The larvae of moths are 18-20mm long, 14-16mm long and 30-40mm long. The tentacles are white, and the caries are brown-yellow; the lower lip is white, and the outer side is dark brown; the base half of the head, chest and abdomen and the foot white are slightly yellow; the rest of the abdomen and the anal hairs are clustered yellow; the front and rear wings are white and the front wings are behind There are two brown spots on the edge, and some have brown spots on the inside. The front and back wings are white and the front wings are dark brown. Egg diameter 0.6-0.7mm, conical, central depression, orange or light yellow. Larvae body length 25-40mm, 1st and 2nd abdomen section width. The head is brown and black, shiny; body dark brown, pronotum yellow, with 2 black vertical lines; the back of the body has an orange-yellow band, interrupted at the abdomen of the 1st, 2nd, 8th, with the center running through a red and brown break Line; sub-line white; valve off the line red and yellow; both sides of the front of the chest have a red tumor protruding forward, the tumor on the black hairy hair and short hair white brown, the other sections of the back tumor black, dark brown Hairy and white feathery hairs, 5th and 6th tumescent tumors orange-red, with dark brown hairs; abdomen on the back of the 1st and 2nd there is a pair of healing black tumors, upper white feathery hair and dark brown Long hair; tumescent tumor of the 9th belly, upper hair dark brown hairy. The dragonfly is 12-16mm long, cylindrical and yellowish-brown in color, with yellowish-brown hairs on the body; there are four tumors in each of the 1-3 segments on the back of the abdomen.茧 Oval, pale brown, with a few black hairs. The color traits of the larvae of the caterpillar larvae and the spot color of the pre-implantation wing are important features distinguishing the two species.