Is it possible to exchange orchids for thrips? How to control orchid thrips

Thrips are insects that feed on plant sap, with white, yellow, or orange larvae and brown or black adults. When eating, it can cause damage to the leaves and flowers, which greatly affects the growth of orchids.

Prevention and control measures. 1. Agricultural prevention and control.

In early spring, weeds and dead branches and leaves are removed from the field, and they are burned or buried deep to eliminate overwintering adults and nymphs. Strengthen fertilizer and water management to promote the growth of plants and reduce damage.

2. Physical prevention and control.

Taking advantage of the blue habit of thrips, blue sticky plates are set up in the field to trap and kill adults, and the height of the sticky boards is the same as that of crops.

3. Chemical control.

Conventional agents such as imidacloprid and acetamiprid are routinely used, and the control effect is gradually reduced; At present, the following prevention and control methods are relatively popularized in the world.

Fourth, the key points of prevention and control.

1. According to the characteristics of thrips in the day and night, it is recommended to take medicine in the afternoon.

2. Thrips have strong concealment, and the agent needs to choose systemic or organic silicon additives, and try to choose the agent with a long duration of effect.

3. If conditions permit, it is recommended to combine the method of chemical fumigation and foliar spray.

4. Prevent in advance, don't wait until it is overflowing before taking medicine. When planting during high temperatures, if the mulch is not covered, it is best to spray the middle and lower parts of the plant and the ground at the same time, as these are the thrips nymph habitat. It can also be sprayed with potassium dihydrogen phosphate in fertile leaves to supplement nutrients and resist pests and diseases.

Orchids for soil. This solution is very bad, then you have to change his root nature for soil, only then you have to update, it must be his nutrition has been configured, so that you can change the map.

There are small white insects in my domestic orchid planting material, and they will surface and move when watering? Surfacing? Are you sure?

Thrips adults are about 1 mm. Thrips in the planting feed are older nymphs that are about to become adults, and they fall from the leaves to the surface of the planting material. Thrips lay eggs in leaves and flower bracts and feed on sap. Thrips are afraid of high temperatures and light.

Insecticide is not completely related to a variety of factors: drug symptoms, concentration (and content, 25 and 50 dilution of the same multiple, the efficacy will be completely different), drug interval, spraying time, spraying site, spraying coverage, etc., if improper, insecticide may occur.

It is recommended that you use the medicine in the evening, dilute it strictly according to the instructions, and spray the whole orchid with full coverage, and spray the surface of the planting material or irrigate the roots.

You can try it again with dimethoate, such as acetamiprid or phoxanthion emulsifiable concentrate. Rapid culling is generally imported and sub-packaged, expensive, and the same domestic is a cocoon must be treated, more than ten yuan.

--- the larvae of thrips are very difficult, dimethoate, dichlorvos, it is very difficult, carbofuran is too toxic, and it is very dangerous to use at home.

Adults can be killed by spraying with household "exterminators" or trapping with "sticky fly boards". The following insecticides are recommended for larval control.

Imidacloprid, enyldimidam, pymetrozine, 40% acetamiprid.

You can choose 25% imidacloprid wettable powder 2000 times or 5% acetamiprid wettable powder 2500 times, 10% imidacloprid wettable powder 1000 times or 20% dimidoxamin emulsifiable concentrate 1500 times.

Thrips may have wax on their bodies, and their bodies are very light, and their bodies are not easy to attach to when sprayed with general drugs, and they are active frequently, which is indeed difficult to eliminate. It can be treated with carbofuran. I use quick culling control, kill thrips when killing orchid scale insects, because quick culling has a good attachment and penetration effect, can be touched, stomach poison, fumigation, the effect is very good, you can give it a try.

Adding a little laundry detergent to the medication can easily kill him.

Bask in the sun.

If necessary, 25% imidacloprid wettable powder 2000 times or 5% acetamiprid wettable 2500 times, 10% imidacloprid wettable powder 1000 times or 20% enyldimidamin emulsifiable concentrate 1500 times can be used.

You can use dimethoate to spray and water with some laundry detergent.

Insect prevention and treatment: Orchids are multi-pest plants, especially in high temperature and high humidity seasons, so attention should be paid to prevention and control. Scale insects, red spiders, thrips, aphids, snails and other pests like to suck the juice of orchid leaves, and after biting the heart of the leaf, the orchid is very susceptible to rot due to rotting the heart.

It can be eliminated with insecticides such as dimethoate, killable, carbendazim, etc., and regular preventive spraying with sterilizers.

The well-maintained orchid is about to bloom, but it is plagued by thrips, and it is sad! Share a few ways to control thrips.

Thrips can be pymetrozine, thiamethoxam, ethyl spinosadin, etc. It can also be glued with a blue sticky insect board.

Spray insecticides that specifically treat thrips. You can hang a blue board next to it.

From the bud to the flowering, the orchid lasts for half a year.

It can be carried out in both spring and autumn, and is generally divided every three years. All plants with strong growth and dense false corms can be divided, and at least 5 connected false corms should be kept in each cluster after dividing. Irrigation should be reduced before dividing the plants to make the potting soil drier.

When potting after dividing, first cover the hole at the bottom of the pot with broken tiles, then lay coarse stones, accounting for 1 5-1 4 depth of the pot, then put coarse soil and a small amount of fine soil, and then plant with sandy loam soil rich in humus. The planting depth is to bury the false bulb in the soil, leave 2cm along the edge of the pot, spread the green cloud grass or fine stones, and finally water thoroughly, put it in the shade for 10-15 days, keep the soil moist, gradually reduce watering, and carry out normal maintenance.

It's quite long. It can last for more than half a month. Sometimes longer. During the flowering cycle, the longer the flowering period will be, if you do not bask in the sun.

Specifically, you can go to Xi'an Flower Online to see the flower technology.

It's quite long. It can last for more than half a month.

It's usually half a month. Generally, it is managed as usual, and it will be more fragrant if you bask in the sun.

A year or so. We've been in our house for almost so long.

It's a pity. It's basically manual rejection. There are no good cures.

It should not hurt the orchid, only a small amount of dilution before watering.

Insects are the most abundant animal group on the planet, accounting for more than 50% of all biological species (including bacteria, fungi, and pathogens), and their traces are found in almost every corner of the world. Until the beginning of the 21st century, there were more than 1 million species of insects known to humans, but there are still many species yet to be discovered. Insects are the most diverse and abundant in the animal kingdom and have a significant impact on agricultural production and human health.

The most common are locusts, butterflies, bees, dragonflies, flies, grasshoppers, cockroaches, etc. Not only are there many species of insects, but the number of individuals of the same species is also staggering.

The distribution of insects is so wide that no other class of animals can compare with it, and it is almost all over the earth. There are different types. Most insects can be used as specimens, and they are a good biological resource that humans can use.

The body of an insect is divided into three parts: head, thorax, and abdomen. Adults usually have 2 pairs of wings and 6 legs, the wings and feet are located in the thorax, and the body is composed of a series of body segments, which are further assembled into 3 segments (head, thorax and abdomen). A pair of antennae are head-born, and the bones are wrapped around the body; The form of life is varied, and it is spread all over the world.

It is one of the most diverse arthropods.

Insects are the most abundant animals in the world, with more than 1 million species discovered, more than all other animal species combined.

Insects are constructed differently from vertebrates in that their bodies are not supported by an endoskeleton and are covered with a shell made of chitin. This shell is divided into sections to facilitate movement, like a knight's armor.

Insects play an important role in the biosphere. Insect flowers need the help of insects in order to spread pollen.

And honey collected by bees is also one of people's favorite foods. In some parts of Africa, Southeast Asia, and South America, insects themselves are the food of the natives.

But insects can also pose a threat to humans, such as locusts and termites. And some insects, such as mosquitoes, are also transmitters of diseases.

Some insects are capable of harming humans through venom or bites. For example, wasps inject venom into intruders with their stings.

For the cucumber, watermelon, melon, tomato, eggplant, pepper and other vegetable crops transplanted by seedlings, it can also be combined with watering during the seedling period or planting, and the 60% imidacloprid suspension seed coating agent 1000 1500 times liquid is used to irrigate or soak the roots, and the seedling rhizosphere is covered with liquid medicine, and it can also effectively kill underground pests such as grubs, ground tigers, needleworms and other underground pests around the seedlings, and effectively prevent the harm of aphids, whiteflies, planthoppers, thrips, leafhoppers and other underground pests through conduction, and prevent the introduction of viruses. Prevent the occurrence of viral diseases. The validity period can be up to 30 to 50 days, and the number of sprays can also be reduced.

Before sowing cucumber, watermelon, tomato, pepper, eggplant, zucchini, cowpea, garlic, potato and other crops, 52% imidaclox pyrrol benzoline suspension seed coating can also be used to mix seeds with 52% imidacloprid suspension seed coating, or 48% benzopyroxiprid suspension seed coating, which can not only effectively prevent the harm of pests, but also effectively prevent cataplexy, standing blight, root rot, sheath blight, total erosion and other major diseases at the seedling stage, and can also promote root growth and make seedlings more robust.

This one can't kill that flower this time, this medicine is very harmful to Huayou, no.

Can spray, must spray. If you don't spray, the flowers will be ruined quickly. The little black worm is called thrips, and it is a relatively difficult pest to treat.

In summer, there are little black flies everywhere to raise flowers, learn these tricks, and you can eliminate them without spraying.