How to effectively control the damage of scale insects to orchids?

How to get rid of orchid scale insects? Scale insects are very stubborn pests, the shell of the insect has a thick layer of wax, and general pesticides have little lethality to it.

Moreover, the presence of scale insects on orchid leaves is multi-generational and homogeneous. In many cases, Lanyou uses medicine to kill the larvae of pests, but adults avoid medicinal properties because of "protective nails". It won't be long before you find a lot of scale insects on the orchid leaves.

8. Like the picture above, it is a typical 4-generation scale insect pattern of the same plant, and it is difficult to work if only medication is used at this time. The onset period of scale insects is more than 5-7 months every year (taking the Yangtze River basin as a geographical reference), and the pest reproduction rate is very fast, from the discovery of two or three pests to the appearance of the picture above, it generally only takes about 10 days. There is no secret to controlling scale insects, as long as you follow these steps, you can quickly get rid of scale insects.

1. Fast. Once scale insects are found on orchid leaves, they need to be dealt with immediately, and delaying the time will not only bring more damage to the orchid, but the more pests there are, the more difficult it will be to control. The first scale insects mostly appear in the state of adults, and the color is white, and many times the scale insects are confused with white frost, which will cause fundamental deviations in the use of drugs.

Remember one key point: scale insects are living organisms and are mobile; Whereas, hoarfrost is a germ and does not move.

Second, scrape. When a small number of scale insects are found on orchid leaves, the first step is to scrape them off. Whatever medication is used later, it must be curetted.

Before scraping the scale insects, spread a layer of adhesive tape (wide scotch tape, with the adhesive side facing up) on the flower pot, so that the scraped pests can be stuck and avoid leaving "remnants".

3. Shear. If the insect infestation is already serious and cannot be cleaned up by scraping alone, it is necessary to cut off the severely ill orchid leaves. The leaves should be cut and concentrated (so that they can be incinerated in a unified manner), and the leaf beetles of the orchid seedlings should be very carefully observed, especially some dry leaf beetles also need to be cut together (dry leaf beetles are often the hiding place of pests).

Fourth, medicine. After all the above steps are done, the use of drugs can be considered, which can get twice the result with half the effort. There are many drugs that can be used to kill scale insects, and in the past, when scale insects appeared in crops, most of them used some highly toxic pesticides, but it is obviously not suitable for family orchids.

Fortunately, there are also a lot of special subdivision drugs for scale insects in the agricultural materials market, and Lanyou can find those drugs with the words "killing", "fighting", and "exterminating" to use, and the effect is mostly very good.

After soaking a small cotton ball or rag in vinegar or alcohol, and gently wiping it on the stems and leaves of the affected flowers and trees, the scale insects can be killed.

In addition, in the daily maintenance should also strengthen management, pay attention to strengthen ventilation, poor ventilation is conducive to the breeding and development of insect eggs, pay attention not to apply nitrogen fertilizer when fertilizing, too much nitrogen fertilizer will make the plant cell wall thinner, more susceptible to insect pests.

Spray the insecticide regularly and consolidate it every other month. It can be planted in isolation from other flowers and plants to avoid insect infection.

After wetting the towel with vinegar or alcohol, gently wipe the various parts of the orchid damage, and then strengthen ventilation management to prevent the breeding of scale insects.

In the process of raising orchids, if the leaves and shoots are deformed, the leaves gradually yellowing and falling, and the whole plant withers and withers, we must pay attention to it. This may be an infection with scale worms. You can open the surface of the orchid, the back of the leaf, the axillary bud and the bottom of the plant to see it.

Scale insects come in different colors, the most common ones are white, and of course they can be yellow, brown, gray or black when they become adults. In addition, a hard shell will form on the back, which can resist common pesticides and is difficult to remove.

If the plant is infected with scale insects, you can use a brush to scrape the scale insects clean, and then depot them in time, clean the root system, and manually remove all the pests on the plants, pot them with new potting soil, and then bury them in the soil. It can solve the situation of plant infection with scale insects and allow plants to grow healthily. Usually the plant is not infected with insect pests, and it can also be buried in the soil to prevent it.

Orchid posture is beautiful and elegant, flowering fragrant, people have a long aftertaste, for thousands of years, has been deeply loved by people, friends who raise orchids in the process of raising orchids, our orchids will be infected with some scale insects to harm our orchids, the following is a brief talk about the control of scale insects, and communicate with you!

1. When is the high incidence season for orchid scale shells and asparatus? What are the manifestations of scale infection with scale insects?

Orchid scale insect vitality is strong, the reproductive ability is more amazing, a year can even reproduce three to four generations, the approximate incubation time in May, August and October, this animal has a needle-like mouthpart, can penetrate into the orchid plant, absorb nutrients and water, and then will infect some diseases, if the orchid is infected with the scale insect, the light leaves will turn yellow, and the heavy one will even lead to the death of the orchid.

When the scale insect occurs, the leaves and plants of the orchid are expressed, when we carefully ** the leaves, we find that the leaves have secreted honeydew, there are white spots, which can basically be sure that the scale insects have been infected, these scale insects have strong reproductive ability, if they can not be treated in time, they will soon crawl all over the orchid plants, and even destroy some other flowers, so we can not be sloppy with the scale insects.

Second, how to control scale insects?

The control of scale insects should first focus on prevention, and the quality must be strictly controlled when buying orchids, and do not buy orchids infected with scale insects.

In addition, the control of scale insects should be based on prevention, scale insects like dark and humid environments, in places that are not ventilated and do not see light, will soon be flooded. Therefore, the maintenance of orchids should pay attention to the watering should not be too much, the soil should be kept dry, and the air temperature should not be too large, and the orchids should be placed in a ventilated and breathable place where soft light can be seen.

In fact, veterans of raising orchids can know that outdoor semi-shade maintenance of orchids can see soft light, and can be ventilated, and the probability of infection with scale slow-moving shellworms will be significantly reduced, so after spring, try to maintain outdoors.

In addition, we can spray drugs early and prevent them in time, and we know that scale insect larvae are easy to control, but if they have a hard shell, they are difficult to control. In April, you can spray dimethoate, scale nirvana, etc. for control.

Three, what if it happens?

In case of scale insects, we can brush and scrape in time, experienced veterans will use cotton swabs dipped in rice vinegar for manual brushing, not only can remove scale insects, but also can supplement some acidic substances, which is beneficial to orchids, of course, you can also use alcohol to wipe them.

However, in order to cut the grass and eradicate the roots, I suggest that you can use some drugs to water the soil while wiping, so that the eggs in the soil and the remaining scale insects can be killed.

Fourth, summary The orchid posture is beautiful, but its beauty comes from our hard work and dedication.

It's August now, and the temperature is very high. At this time, the growth rate of orchids is slow, and the water demand is less. In addition, in order to avoid the breeding of pests and diseases, we will reduce the watering of the potting soil and maintain it properly.

However, in this case, orchids are very susceptible to scale insects, so how should scale insects be prevented? The way it controls is actually quite simple. We only need to purify and sprinkle this little white medicine dinotefuran on the potting soil of the royal house.

It is a granular insecticide with a strong systemic and contact killing effect. We take a small spoon and touch and poison these pests with the method of watering. Like this kind of medicine, we generally only use it once every forty or fifty days, and the validity period is still relatively long.

If we are already infected with scale worms, we need to disinfect these scale worms with alcohol first. Then use a cotton swab to get rid of all the scale insects, and then sprinkle small white medicine in the potting soil for control. Therefore, when raising orchids in August, I am most afraid of being infected with scale insects.

Once the scale insect is overflowing, it will cause great harm to the plant, eating its stems and leaves, blocking the transport of nutrients, is very bad for the growth of orchids, so prevention is the most critical.

What are the little white dots on orchid leaves? How to get rid of scale insects? Explained!

Prevention and control methods: (1) Prevention is the mainstay. When buying orchids, it is necessary to ensure that the seedlings are free of scale insects, and secondly, because scale insects are mostly caused by excessive water humidity and poor ventilation, therefore, special attention should be paid to environmental ventilation in daily management to avoid excessive humidity.

2) When there is a small number of scale insects, you can use a soft brush to gently brush off the artificial removal of the insects, and then rinse them with water. (3) When using drug control, when the nymphs hatch soon and have not yet formed a waxy shell, the pesticides used can be 40 dimethoate or oxidized dimethoate EC 1000 times, or 50 trichlorfon 250 times, or 80 dichlorvos EC 1000-1500 times, or deltamethrin EC 2000 2500 times. Generally, spray 1 3 times continuously, with an interval of 7 to 10 days each time, and the effect is better.

In addition, special attention should be paid to the fact that scale insects are easy to develop resistance to drugs, and it is necessary to master the concentration of pesticides and alternate pesticides.

Scale insect treatment method: Mix liquor with water, the ratio is 1:2.

When treating insects, water the surface layer of the potting soil thoroughly. Scale insects begin to move at room temperature 7 in spring. It can be poured once in April, and then every half a month or so, and it is effective for 4 consecutive times.

Use 50 ml of vinegar (rice vinegar), soak a small cotton ball in vinegar, and gently rub it on the stems and leaves of the affected flowers and trees with a wet cotton ball to wipe off and kill the scale insects. This method is convenient and safe, which can not only achieve the purpose of insect control, but also make the damaged leaves green and shiny again.

Gently and repeatedly rubbing the diseased plants with sprinkler sperm can get rid of scale insects, and they can be removed very cleanly and thoroughly. If you wipe the orchid disease leaves with sprinkler semen, not only can the scale insects be removed, but also the larvae that are not clear to the naked eye, they are also completely killed, and the second year is rarely found to have scale insects as a pest, this method is simple, safe, and the effect is good.

Use diesel, washing powder, water according to the ratio of :6 to adjust the mother liquor, at this time the mother liquor contains 60%, milk-like, diluted with water 30% of the oil solution, the Milan, kumquat, cycad on the scale insects carefully sprayed. After one week, most of the scale insects changed from fresh orange to shriveled state, indicating that this method has a good control effect on scale insects.

Note that because the leaves of the orchid are relatively large and easy to clean, you can choose to wipe them with a damp and soft rag, because the scale insects are not easy to survive once they leave the plant body.

1: Here are some simple and easy prevention methods: Dissolve the laundry detergent in a small amount of warm water, dilute it with water to 600 times the liquid, and evenly spray the front and back of the leaves of the plant, once every 3 days.

Squirt 3 times in a row. Laundry detergent can relieve the keratin on the surface of the shell worm and form a layer of foam to wrap the worm and suffocate it. Press 1:for diesel and water

The ratio of 60 is adjusted into an emulsion, diluted with 100 times water, and sprayed on the front and back of the leaves. Mix vinegar and water in a ratio of 1:8 and spray the front and back of the leaves; If the scale worm has become an adult, the acidity of the stick compound can be slightly increased, once every 3 days, sprayed 3 times in a row.

2: There is also a drug, worm curd, which is also effective after the shell is born, but the concentration should be slightly increased. Recently, our pepper here is prone to scale insects, and the control effect is very good with 25% grassworm line 1000 times.

In particular, the control effect of blowing cotton scales is particularly prominent. The control effect of nicotinic insecticide Liu on stabbing and sucking mouthparts pests is also relatively good.

3: Flatten the leaf surface of the scale insect, select a piece of scotch tape equivalent to the size of the leaf and stick it on the scale insect body, gently compact, and then slowly remove the scotch, the scale insect will be glued up with the tape, so as to achieve the purpose of the scale insect, and also protect the leaf surface.

Cool white watering orchids, pros and cons coexist!

Home-raised Chunlan and Jianlan are the most susceptible to chaff scales. To control this pest, on the one hand, we should improve the environmental conditions, and place the orchids in a ventilated, cool and well-ventilated place in summer and autumn. On the other hand, it can be used to kill insects, and it is best to spray once every 10 days or so during the hatching period of scale insects in early June, and the effect is better.

You can also use an old brush and soak it in soapy water to wash the diseased leaves.

In the larvae, it can be killed with insecticides, and when the adult worms are taken in time, measures such as pulling out the plant, pruning, scraping the bark or brushing can be taken in time to obtain significant results.

Scale insects are one of the most common pests that damage orchids. Its adult worms have waxy shells, which are difficult for general pesticides to enter, and once they occur, they are not easy to remove. It is mainly based on prevention and control.

There are many kinds of scale insects, mainly parasitic on the stems and leaves of orchids, and can also be seen on the membranous sheath at the base of petioles and pseudobulbs, which are powdery, and they feed on the stinging mouthparts to suck plant juice. When the harm is light, the organ turns yellow and aging, affecting the growth of the orchid plant, and the heavy one covers the leaf surface, which not only consumes nutrients, but also affects the photosynthesis of the orchid plant, so that the growth and development are hindered, and the normal flowering and fruiting can not occur, and even the dead leaves and fallen leaves until the whole plant dies.