How to get rid of the American white moth on home flowers?

Here's how to eradicate the American white moth from home flowers:

1. Artificial cutting of the net curtain or torch burning: the larvae of the American white moth spit silk and form a net before the 3rd instar, and gather in the net curtain to feed the harm, the net curtain is obvious and easy to find, therefore, during the net curtain period of the American white moth, the net curtain is manually cut off and destroyed on the spot. When cutting the net, special care should be taken not to break the net, so as not to leak out the larvae.

For tall trees that are not easy to cut, you can use bamboo poles to tie torches to burn the entire net curtain.

2. When the American white moth pupates, look for overwintering and summering in the weeds and litter layers of the bark, under the soil and stones, under the canopy, or in the soil surface and in the crevices of buildings.

3. In the adult stage of each generation, the phototaxis of the adult of the American white moth is used to hang insecticidal lamps to trap and kill the adults. Generally, the interval between hanging lights is 100 meters, and there are no tall obstacles at the hanging lights, and the lights are turned on from 19:00 to 6:00 the next day.

4. Before the old mature larvae go down the tree, at the height of the trunk, use grain grass, straw, grass curtains, etc. to form a tight and loose grass handle, and attract the old mature larvae to concentrate on pupation.

The American white moth is a key quarantine pest in China, and once it is found, the country must spare no effort to eliminate it. If you really have an American white moth, you can report it to the forestry station immediately, and they will take care of the eradication.

Control methods of American white moth:

1. Artificial physical control measures:

1) Catch adults, late May to early June, late July to mid-August, is the adult feathering high bee period, organize personnel to catch adults in the early morning or dusk every day.

2) Cutting the net curtain, during the net curtain period of the American white moth, using the habit of the larvae before the third instar of the American white moth to gather in the net curtain to feed, organize personnel to cut the net curtain and destroy it in a centralized manner.

3) Trap pupation of grass, before the old mature larvae of the American white moth pupate, at the point where the trunk is meters from the ground, loosen the straw or straw curtain and tie it up tightly to attract the larvae to pupate, change the straw every 7-9 days, and burn the grass together.

2. Pharmaceutical prevention and control measures:

In the early stage of larval net breakage, spraying control is the best. The agent can choose 3000-5000 times of larvaluramide, pest enemy and 1500 times of 5% cypermethrin. When spraying, it must be uniform and thoughtful, and can not be missed; Pianlin uses a fog machine for smoke control, and the agent can use chrysanthemum emulsifiable concentrate, permethrin emulsifiable concentrate, deltamethrin emulsifiable concentrate, etc.

It can also be used in the larval stage to use biological agents matrine and other drugs for smoke spraying or spray control.

3. Biological control measures:

The old mature larvae of the American white moth were released at the pre-pupal stage and the pupation stage, and the pupa of the American white moth was used to parasitize the pupa of the American white moth.

There are many kinds of natural enemies of the American white moth in nature, among which there are two kinds of white moth with better parasitic rate and lower breeding cost, one is the white moth Zhou's rodent wasp, and the other is the white moth black base rodent wasp.

The American white moth (scientific name: Hyphantria cunea) is a white moth of the family Lamp Moth, a white moth with a female body length of 9-15 mm and a wingspan of 30-42 mm; Male moths are 9-13 mm long and have a wingspan of 25-36 mm. Oval spherical, about millimeters in diameter.

The first hatchling larvae are generally yellow or light brown in color. The male pupa is thin and small, with a longitudinal ridge on the back, and the female pupa is more hypertrophied. There are 10-15 irregularly arranged gluteal spines at the end of the abdomen, and the ends of the gluteal spines are swollen and flare-shaped.

The adult American white moth has three characteristics: "phototaxis", "taste" and "food", and is more sensitive to odor, especially fishy, fragrant and odorous. Generally, in the surrounding trees such as toilets, livestock houses, and stinky puddles with poor sanitary conditions, epidemics are very likely to occur. The American white moth is native to North America, mainly in the United States and southern Canada, and its ecological distribution range is between 19°-55N°.

25% chlorpyramide - indigenous organisms.

25% larvaluride-insecticide is a benzoyl insecticide, which can inhibit the synthesis of chitin in the epidermis of insects, resulting in insects not being able to molt normally, and causing larvae to die of molting disorders. This product is mainly gastric toxicity, and is used in the recommended dose, which has a good anti-smelting effect on cabbage green worms.

Thiamcloprid: When 3% thiamethoprid microcapsule suspension is diluted 1000 times, the 48h control effect on the 4-5 instar larvae of American white moth is achieved, which is more effective than the common control agents emamectin benzoate and larvaluride, and the control effect is more than 2 months.

Bacillus thurturinus or polyhedrovirus insecticides or emamectin benzoate can be used. Fenozide or acitretinamide or insecticidal mono. Flubendiliprole or indoxacarb or Sinochem 9080 and other agents for prevention and control.

American white moth. Mainly to larvae feed on plant leaves, its feeding amount is large, when the damage is serious, the host plant leaves can be eaten up, and gnaw the bark, thereby weakening the tree's ability to resist damage and stress, seriously affect the growth of forest trees, and even invade farmland, harm crops, cause yield reduction, or even extinction, known as "smokeless fire".

Chemical control: Cypermethrin emulsifiable concentrate is used to dilute and spray to kill the larvae of the American white moth. Biological control:

Taking advantage of the mutual restraint relationship between species, Zhou's rodent wasps were placed to inhibit larvae. Physical control: cut off the net curtain left by the larvae of the American white moth and burn it for destruction.

Manual killing: Place props such as insecticidal lamps to trap and kill.

1. Chemical control

American white moth larvae can be eliminated by chemical control methods, diluted with cypermethrin emulsifiable concentrate and dichlorvos emulsifiable concentrate, and then used manual spraying or trunk painting to kill, or you can use a sprayer, about meters away from the trunk, ring spray, also has a very good control effect.

2. Biological control

Biological control is mainly the use of mutual restraint between species to eliminate the larvae of the American white moth, which can be placed in the vicinity in a cluster before the larval pupates, with the Zhou's rodent wasp as the main parasitic wasp, which can effectively control the population of the American white moth larvae, set up traps, and kill the adults to reduce the reproduction rate.

3. Physical prevention and control

When the larvae of the American white moth spin silk and form a net, it will leave a clear net curtain on the leaves or the edge of the tree, and when the net curtain is found, it will be manually cut off and burned to destroy, and pesticides will be sprayed around, and the position of the tree trunk is a circle of grass to attract larvae to concentrate the pupation, and the larvae after concentration are destroyed.

4. Artificial hunting

Using the phototaxis of the larvae of the American white moth, trees and open areas, place trapping lights, insecticidal lights, black lights and other props to trap and kill the larvae, and pay attention to the place where the lights are hung to avoid tall obstacles.

American White Moth Control Methods:

1. Strengthen quarantine. Seedlings in epidemic areas are strictly prohibited from being transported without dust detection and disease sensitivity, and active prevention and control are carried out in epidemic areas to effectively control the spread of the epidemic.

2. Artificial prevention and control. Before the larvae were found before the 3rd instar, the net curtain was manually cut and treated intensively. If the larvae have been dispersed, the larvae of the tree are recruited by tying grass to the trunk before the larvae pupate into the tree, and the larvae are regularly designated for centralized treatment.

3. Use American white moth sexual attractant or environmentally friendly insect tropism trap to trap and kill adult insects. In the adult occurrence period, the trap core is put into the trap, and the trap is hung in the forest to directly trap the male adult, block the pest mating, reduce the reproduction rate, and achieve the purpose of eliminating the pest.

4. Use biological and chemical agents to spray for prevention and control. Early detection and early prevention and control should be achieved during the larval damage period. In the prevention and control, focus on checking whether there is larval damage to mulberry, plane tree, stinky tree, elm, gold and silver wood, peach tree, white wax and other tree species, if there is larval harm, it is necessary to inspect the area under its jurisdiction and prevent and control it in time.

The agent is 400 times of BT emulsion and 2500 times of 2 5 deltamethrin emulsifiable concentrate. 80 dichlorvos emulsifiable concentrate 1000 times liquid, 5 lyphalin 4000 times liquid spraying control, can effectively control the damage of this insect.

5. Biological control. Zhou's rodent wasp is a newly discovered species, native to China, but it has become the natural enemy of the American white moth.