Scientific name Vanessa indica Herbst Synonyms Pyrameis indica Herbst Lepidoptera, Nymphalidae. Alias ​​red butterfly. Distributed throughout the country.
Host ramie, jute, hemp, ramie, eucalyptus and so on.
The larvae attacked the larvae to make leaf curls, eat the young leaves of the seedlings, damage the growth points or curl the leaves, resulting in slow growth of the plants. The severe whole field hemp leaves were wrapped, showing a white, the plants withered.
Morphological characteristics of the butterfly body length 20mm, 45-67mm wingspan, black-brown forewings, wings near the wing with 7-8 different sizes of white spots, was semi-circular, wings with a red and yellow irregular cloud-like spots, The base and trailing edge are dark brown with a short curved white spot on the outer margin. The hind wings are dark brown, orange-yellow near the outer edge, with 4 dark brown patches inside, and 1 short curved white spot on the outer edge. Egg length 0.7mm, long cylindrical, light yellow-green. The larvae have a black head and a lustrous body. The body is mostly black to bleak and belly brown. The valve line shows intermittent light yellow-green broadband. There were 4 branches in the chest and back, and 7 branches in the 1-8 section of the abdomen. The dragonfly is 20 to 26mm long, nearly spindle-shaped, light grayish green. There is a horny bulge on the back of the chest, and there are 3 columns of spinous processes on the back of the 2-8 abdominal section.
Living habits The Yangtze River Basin is an 2-3-year-old ancestor that conceals winters as adults in field ridges, weeds, forests, or eaves. The overwintering adults of Hubei overwintered in early February and early March. They spawned in mid-March and entered the larval hatching in late March. They entered the middle of May, and the first generation of adults emerged in late May. Later, in mid-August, they flew to the Yam field to lay eggs, and the newly hatched and grown larvae curled up to eat leaves. In late September, the larvae disappeared. In early October, the second-generation adults began to overwinter. Adults fly strong, like hi nectar during the day, especially active at noon, the eggs are produced in the top leaves of ramie, eggs scattered, 1-2 tablets per leaf, young larvae like habitat groups damage, 3 years after the transfer, touched by touch , There are drooping drooping habits, after the old mature, the end will hang upside down in the wrapped leaves and phlegm. The development of larvae is suitable for temperature 16-22 °C, and the increase of temperature in July has a significant inhibitory effect on the occurrence of this worm.
Prevention and control methods (1) Agricultural control nets catch adult worms, remove pests, kill them centrally, or use clapper boards to kill larvae or larvae in the leaves. During the first and second harvests, some ramie plants were left to trap larvae and destroy them collectively. (2) The larvae climbed out of the gall to reach the upper part of the hemp stalks at the time of the damage of the third instar or the morning of the third instar 7-8, and sprayed the enemy powder every 667m2 or 2.5% phoxim powder, 2% Pesticide pine powder 1.5-2kg, can also be sprayed with 90% crystal trichlorfon 1000 times or 50% dichlorvos EC 1500 times, 50L per 667m2.
The medical Nebulizer is our ORIENTMED's main product. There are many different types of nebulizer under the brand ORIENTMED. Many different design and different principle, our nebulizer could meet many different clients from different countries and areas. Our Nebulizer has got the CE, ISO, FDA and RoHs. So pls kindly be assured of our quality. Together with other digital products, ORIENTMED aim to develop the pharmacy products. Help the society to sovle may problem for the olds. More care should be give for our the olds.
If you are intrested in our products, welcome to send us inquiry and ask us for more details.
For health! Professional service, we will do better!
Nebulizer
Nebulizer Machine,Portable Nebulizer,Ultrasonic Nebulizer,Kids Nebulizer
Hebei Orient Imp. & Exp. Co. Ltd. , https://www.orientmedcare.com