How did the elm green hairy firefly beetle enter the house, and how did the elm green hairy firefly

There are several reasons why elm green hairy leaf beetles enter the house:

1.Elm green glowrose beetles are phototaxis and are attracted to light to enter houses.

2.Elm leviera lays eggs in contaminated soil, which is mostly found in pots or soil accumulations, so they may be found in pots or on paths around houses.

In order to repel elm green hairy leaf beetle, there are several methods:

1.You can take advantage of the characteristics of elm green hairy firefly beetles that do not like peppercorns and large ingredients, and scatter them on windows or doorways, or grind them into powder and dilute them with water and spray them on the windows, so as to achieve the purpose of driving them away.

2.Hanging sticky insect boards on doorways or windows is an effective way to catch and repel elm glowworms.

3.If you want to use insecticides, it is recommended to choose low-toxicity and high-efficiency ingredients, such as organophosphorus insecticides. However, please note that insecticides may have a certain amount of *** on the human body, please pay attention to ventilation and avoid direct contact when using in indoor confined spaces.

1.You can put pepper, garlic, onion and other things that you don't like to smell in the place where the elm green hairy leaf beetle is haunted, which can effectively drive away the elm green hairy leaf beetle.

2.Elm green hairy leaf beetle generally refers to elm green leaf beetle, belonging to Coleoptera, leaf carapace.

You can use 1000 times of cypermethrin, 1500 times of imidacloprid, and 1500 times of emamectin benzoate. If it is the growing season, the trunk can be coated with a 50-fold ring of oxymethoate. Introduction to Eucommia ulmoides leaves:

The leaves of Eucommia ulmoides are long, covered all over the body, millimeters long, orange-yellow to yellowish-brown. Coleoptera green. There are 1 and 3 black dots on the top of the head, on the chest, and on the back plate, respectively.

The antennae are raised, the frontal tumor is pronounced, and the points on the top of the head are quite dense. Compound circular process of the eye. The antenna is short, extending backward to skip the shoulder swell, the third segment is twice as short as the second, the third to the fifth segment is almost equal in length, and the later segments are slightly shorter.

Life history: Ash worms occur in two generations a year, and adults overwinter in soil, under bricks, among weeds, in wall crevices and under eaves. Adults begin to move in the spring of the following year.

The eggs are laid on the dorsal surface of the leaf and are grouped in two rows. The egg stage is about 7-10 days. The larvae have a high density on the foliage surface, with a total of 4 instars.

Mature larvae pupate at trunk forks and bark cracks for 10-15 days. Hazards: Euonymus is very common in Northeast China and North China, and it is seriously harmful to elm trees.

Both adults and larvae eat leaves, usually eating the entire elm leaf, leaving only the veins. Adults secrete a yellow, foul-smelling liquid to evade their enemies.

1. It belongs to Coleoptera, and the leaf carapace family. It mainly occurs in Inner Mongolia, Hebei, Henan, Shanxi, Shandong, Jiangsu, Jilin, Heilongjiang and other places; It also happened in Mongolia, Russia, and Japan. Mainly harms elm trees.

Adults and wise larvae feed on leaves, and when it is serious, the leaves are gnawed away, resulting in early defoliation and affecting the growth of wood in the current year.

2. The adult body length is 7 -85mrn, about 4mm wide, oblong, body roll bixiao yellowish-brown, elytra blue-green, metallic luster. The head is small, there is a blunt triangular black stripe on the top of the head, the width of the front and back plate of the chest is 1 times the length of the large draft, ** there is 1 inverted gourd-shaped black stripe, and there is 1 oval black stripe on each side of the depression.

The small scutellus is black, broad at the base, slightly rounded at the posterior end, the elytra wider than the dorsal plate of the prothorax, and the posterior half slightly expanded. The winged sheaths each have two distinct bulges, and the leg segments are thicker. The end of the ventral surface of the male is semicircular and concave; The end of the ventral surface of the female is concave in a horseshoe shape.

Summary. According to the observation results, 2 3 generations and 2 generations of Ulmus lus and Ulmus yellow hairy leaf beetles occurred in 1 year, respectively, and all of them overwintered as adults.

The adults of the two species of elm leaf beetles have suspended animation, which can be killed by shock, and the larvae swarm at the trunk wound to pupate and can be eliminated intensively. For single or mixed larvae and adults of Elm green hairy leaf beetle and elm yellow hairy leaf beetle, matrine 450ml, 900ml and 1350ml hm2 can be selected; Abamectin chlorpyramide 35ml, 42ml, 50ml hm2; 1% matrine 1000 times, 25% chlorurone 1000 times, 1% avermectin 1000 times, 5% cyhalothrin 1000 times and other sprays, with good control effect.

According to the observation results of Zhaoxiao, 2 3 generations and 2 generations of Ulmus lullis and Ulmus yellow hairy Leaf Beetle occurred in 1 year, respectively, and all of them overwintered as adults. The adults of the two species of elm leaf beetles have suspended animation, which can be killed by shock, and the larvae swarm at the trunk wound to pupate and can be eliminated intensively.

For single or mixed larvae and adults of Ulmus lumen and Euphoria melmus leaf beetles, matrine 450ml, 900ml and 1350ml hm2 can be used; Abamectin chlorpyramide 35ml, 42ml, 50ml hm2; 1% matrine 1000 times, 25% chlorurone 1000 times, 1% avermectin 1000 times, 5% cyhalothrin 1000 times and other sprays, with good control effect.

1-year life history It can be seen from Table 1 that 2 to 3 generations occur in 1 year in Shanghai, and adults overwinter in eaves, wall cracks, soil clods, grasses, and ridges under litter and leaves. The overwintering adults begin to be active in mid-May, and the first generation of adults begin to emerge in early July, with the peak of emergences in mid-July, and the pre-punctuation eggs are laid in mid-July. The second generation of larvae hatches in late July, and adults emerge from mid-August to early September.

This insect is called elm green hairy leaf beetle, and only eats the leaves of elm plants, which is harmless to humans and animals. According to the sock type enlightenment, elm green hairy leaf beetle is a kind of insect of insect class, Coleoptera, leaf beetle family, leaf beetle family, leaf beetle family, mainly distributed in Heilongjiang, Jilin, Liaoning, Inner Mongolia, Gansu, Hebei, Shanxi, Shandong, Henan and other places in China, mainly harmful to white elm, weeping elm, golden leaf elm and other elm plants. In view of the first forecast and preliminary investigation of the occurrence and development of the insect, this year, the overwintering generation of adults of the elm green hairy firefly in our city stinged in advance.

In order to kill the overwintering generation of adults as soon as possible and reduce the harm of their continued oviposition, the medicine vehicle of the Municipal Garden Research Plant Protection Station was dispatched about 20 days earlier than in previous years, and from March 16, the elm trees in the main road and public park under the bureau were rented and transported to carry out comprehensive drug prevention work. Since the beginning of May, high-frequency and high-intensity foliar spraying of elm trees has been carried out on the streets and public amusement gardens of various units under the Municipal Garden Construction Service Center to kill larvae of all instars. As of July 19, the station has dispatched more than 1,302 trains, 26 main and secondary roads in the city, 39 public amusement parks, and 32 street green spaces.

You can use cypermethrin 1000 times, or imidacloprid 1500 times, or emamectin benzoate 1500 times. If it is the growing season, you can apply 50 times the dimethoate ring on the trunk.

Introduction to the elm green hairy glowworm beetle: The elm green hairy glowworm has a long body, a whole body coat, a body length of millimeters, orange to yellowish brown. Elytra green.

The dorsal plates of the head and prothorax have 1 and 3 dark spots, respectively. The convex prominence between the antennae is high, the frontal tumor is obvious, and the top of the head is quite densely notched. Compound eye round.

The antennae are short, extending posteriorly over the shoulders, the 3rd segment is twice as short as the 2nd segment, the 3 5 segments are nearly equal in length, and the later segments are slightly shorter.

Life history: Elm green hairy glowworm 1 year and 2 generations, adults overwinter in soil, under bricks, weeds, wall cracks and eaves. The adults begin to move the following spring.

The eggs are laid on the dorsal side of the leaves, in clumps, arranged in double rows. The egg stage is about 7-10 days. The larvae are densely populated on the foliar surface, with a total of 4 instars.

Mature larvae pupate between trunk forks and bark crevices, and the pupal stage is 10 to 15 days.

Hazards: Elm green glowworm is very common in Northeast China and North China, and it is seriously harmful to elm trees. Both adults and larvae eat leaves, often eating up the entire leaves of the elm tree, leaving only the veins. Adults secrete a yellow liquid with a foul smell to escape predators.