Control methods of Populus tomentosa in ornamental trees in Garden
Distribution and damage of Populus tomentosa PryeriasinicaMoore, also known as Populus tomentosa and Euonymus holly. It belongs to Lepidoptera, Lepidoptera. Distributed in Shanghai, Nanjing, Wuxi, Suzhou, Hangzhou, Wuhan, Lianyungang and Hefei. Damage to Euonymus tomentosa, Euonymus tomentosa, Golden Heart holly spear, Dahuawei spear, Fufang vine and silk cotton wood and so on. The larvae feed on the host leaves, and when the occurrence is serious, the leaves are eaten light, which affects the normal growth of plants.
The morphological characteristics of the adult are oblate and round, with black back, long yellow hair on both sides of chest and abdomen, and yellow abdomen. Forewings grayish black, slightly transparent, base 1 big 3 light yellow. The rear wing is half the size of the front wing and the color is slightly lighter. The egg is oval. When the larvae mature, the body length is about 15 mm, the abdomen is yellowish green, and the forechest dorsal plate has ∧-shaped black markings. There are 7 longitudinal bands on the back of the body, with hairy tumors and short hairs on the body surface. The pupa is yellowish brown with 7 inconspicuous longitudinal lines on the surface and 2 hip spines.
Life habits occur one generation a year in East China. The eggs hatched from the end of March to the beginning of April in the following year, and the larvae had the habit of causing damage in clusters. From the end of April to the beginning of May, the larvae matured, formed cocoons and pupated in shallow soil, and pupae passed the summer. The adults emerged in the first ten days of November and laid eggs after mating. The eggs were laid on the branches and overwintered with eggs.
Integrated prevention and cure
(1) strengthen maintenance and management, such as cutting off branches with eggs.
(2) trapping and killing adults by black light.
(3) the insecticide control of larvae is to spray 1500 times of Miman liquid in the damage period.
- Prev
Control methods of yellow poplar silk wild borer in garden ornamental trees
Distribution and damage to the yellow poplar silk borer DiaphaniaperspectalisWalker also known as the yellow poplar black edge borer moth. It belongs to Lepidoptera, Pyralidae. Distributed all over the country. The larvae are harmful to Populus tomentosa, Holly and Euonymus. The insect is sudden, the light ones affect the normal growth, and the heavy ones wither and fall off, resulting in bald branches and death of the young plants. The morphological characteristics of the adult are about 23 mm in length and 48 mm in wingspan. Except for the front edge, outer edge and posterior edge of the forewing.
- Next
Medicinal flowers: Populus tomentosa
1. Source of Populus tomentosa [BuxussinicaCheng (B.micrphyllaSeb.etZucc.var.HehdetWils.)] Alias Douban yellow poplar, oolong wood, Childe boxwood, mountain yellow poplar. Populus tomentosa is native to Japan and is cultivated in all provinces in central China. Su Ling called yellow poplar and golden finch, Yingchun and velvet needle cypress as the "four masters" of bonsai trees. Ouyang said that yellow poplar "is not a pine, but a pavilion is like a cypress", and has a good comment on the green of yellow poplar.
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi