What kinds of medicines are always available for raising orchids at home, so that you don t have to

Flower maintenance is inseparable from the stage of insect control, just like orchids, many times diseases are caused by pests and diseases. In the previous orchid maintenance**, I paid attention to the fact that orchid disease prevention should gradually start from moth prevention and insect control. Only by eliminating pests and diseases, the probability of all diseases of orchids will be much smaller.

Of course, it does not necessarily mean that only moth-prevention is required, nor does it have to be antibacterial and disease-proof. Especially in the peak growth and development period of spring and summer, pests and pathogens are also in the abundant growth season like orchid seedlings.

At the same time, disease prevention management methods.

If it is not in place, it will lose all the growing season of orchid seedlings; Severely, there is a high probability that the orchid will be wiped out in general. Orchid farmers are worried when they see this, there are so many insecticides and fungicides on the market, what is the best way to raise orchids? In fact, as long as you grasp the regularity of orchid medication, it will not be easy and difficult for you in the process of choosing a drug.

Orchid medicine is nothing more than these kinds:

1. Medication for bacterial diseases.

2. Medication for fungal diseases.

3. Aphids, small black flies.

Fourth, snail pests.

5. Mites.

For the above diseases, the drugs used are not the same, and if the right drugs are not used, they will definitely not have practical effects. I have classified it here, as long as the following types of drugs are necessary for raising orchids at home, you can basically not be afraid of diseases. Of course, when I say that I am not afraid of diseases, I am taking care of the natural environment.

and under the premise of control. If the maintenance is not done well, no amount of medicine can grow orchids.

These are agricultural machinery drugs that fight bacterial diseases and can be used to prevent and remediate soft rot in orchids. Spray once a week during peak growth periods (especially in rainy season) for better prevention. For orchids that have already produced diseases, you can double the demand, or use granules to sprinkle on the orchid disease.

Among the drugs used to treat fungal diseases, carbendazim is broad-spectrum and has a certain practical effect on a variety of pathogenic bacteria. In addition to the daily management of orchids, this drug will be used, when dividing seedlings and potting and cutting roots, if the wound is relatively large, you can also use this granule to wipe the wound to prevent bacterial invasion.

This drug is effective for aphids and small black flies, and every year in early April.

When there is a large boll, there is a high probability that a lot of aphids will inhale the sap of the orchid. At this time, if the medicine is not used in time, it will cause the blooming of the orchid to be unsmooth, and it will also affect the germination of young shoots in the future. What's more, the dense tooth marks of aphids are the most likely areas for pathogenic bacteria to invade.

The snail looks honest and honest, but it is very harmful to the young buds of the orchid. And the application of common insecticides, which has almost no destructive power to it. In semi-outdoor or natural plant orchid environments, snails break out in May of the calendar year.

Therefore, the family raised orchids for party affairs.

This medicine is necessary.

For raising orchids at home, the usual drugs are chlorobromoisocyanuric acid, chlorothalonil, methyl tobuzin, carbendazim, mancozeb, imidacloprid, tetraacetaldehyde, which are all insecticides and fungicides needed by orchids.

If you have orchids at home, you can use carbendazim, carbendazim is a fungicide that can be absorbed by plant roots and leaves, can treat spot disease, etc., can be mixed with general fungicides, and can also be mixed with acaricides.

Imidacloprid, tetraacetaldehyde, methyl tobuzin, chlorothalonil, carbendazim, etc., these drugs are effective against orchid pests and diseases.

Orchid is a more common flower plant in life, and has a high ornamental value, loved by most people, but many people want to know what orchid pests and diseases are, because people in the process of breeding, often encounter some pests and diseases that cause plants to wither, so not timely treatment will lead to the death of plants, the following will follow me to understand the common insect pests and control methods of orchids.

1. Anthrax

This is one of the most common diseases of orchids, in the early stage of the disease will cause obvious small black spots on the plant, and then it will continue to expand, knowing that the leaves of the plant are all forming irregular diseases, and in severe cases, the disease spots will also appear anthracnose, which will affect the normal growth of plants.

2. Scale insects

Almost all plants will be infected with this pest, especially in summer, the weather will be more serious, if coupled with indoor air circulation, plants will easily appear scale insects, and scale insects reproduce very quickly, serious cases will lead to the death of the whole plant.

3. Nematode disease

Nematodes parasitize the roots of orchids, causing root rot, poor growth of aboveground leaves, green and yellow leaf color, and even plant wilting. Nematode damage causes a large number of wounds, and also causes the infection of other soil-borne pathogens, which leads to plant disease and accelerates plant death.

4. White silk disease

The disease is most severe when watered too wet or poorly ventilated, especially when newly planted seedlings are most susceptible. The infected area will produce brown lesions, which will expand rapidly in a high temperature and humidity environment, and eventually appear black brown spots, if the flower friends encounter this situation in the process of breeding, it will lead to the death of the whole plant if it is not treated in time.

1. Peculiar vegetables

Peculiar vegetables have their own peculiar smell, and their smell can play a role in insecticide. Commonly used off-flavor vegetables in the family are green onions, garlic, leeks, ginger, onions, etc., take an appropriate amount of off-flavor vegetables. Mash it into juice, mix it with less water, and spray it directly with the orchid plant.

It can treat aphids, red spiders, scale insects and gray mold.

2. Ointment application method

For local patients such as orchid black spot disease, if you are reluctant to remove the whole leaf, you can use the topical ointment application method, the specific method is to apply Tobuzin powder with water and paste to the patient, wipe off and reapply every other week, which can minimize the development and expansion of the patient.

3. Cigarette butts are insect proof

Tobacco contains nicotine, has a killing effect on pests, only use more than 20 cigarette butts and a portion of quicklime, add water and stir evenly, soak overnight, and then filter, add 30 times the water, use it to spray the orchid plant directly, spray the bottom of the pot can also eliminate ants and other pests.

Conclusion:Through the above detailed introduction, I believe you already know what are the orchid pests and diseases, in fact, there are many common orchid pests and diseases, and the harm to the plant is also relatively large, if people are not careful in the process of breeding, this disease will appear, so flower friends can follow the above orchid common pests and control methods to prevent.

During the growth period of orchids, if you want to kill scale insects, you can spray orchids with drugs such as scale-dead, carbendazim or chlorothalonil. If you want to kill red spiders, you can spray orchids with mite removal, mite sweeping, oyster forest or dimethoate. If you want to kill aphids, you can spray orchids with anti-aphid, thiamethoxam, dinotefuran or acetamiprid.

During the growth period, orchids are susceptible to scale insects, which are relatively easy to handle. During the maintenance period, the insect leaves need to be pruned in time, and after pruning, the orchid can be sprayed with pepper water or pepper water, etc. If the number of scale insects is large, you can also spray the orchid with pesticides such as scale-dead, carbendazim or chlorothalonil.

During the growing season, orchids can also be attacked by spider mites, which can endanger the young leaves of orchids. If the orchid is infested by red spiders, after cutting off the leaves, you can spray it with mite removal, mite-sweeping, grasshopper forest or dimethoate. The agent 7 10 days can be sprayed on the orchid 1 time, and it needs to be sprayed 3 or 4 times in a row.

If not properly maintained, orchids can also be infested by aphids. When orchids are infested by aphids, the leaves need to be pruned and burned to cut off the source of infection. During the maintenance period, orchids can be sprayed with anti-aphid, thiamethoxam, dinotefuran or acetamiprid and other agents, and the concentration of the agent should be controlled to avoid the damage of orchids.

After the insects are removed, the orchid needs to be given sufficient light, water and fertilizer for later maintenance, which can enhance the orchid's ability to resist diseases and insects. During the maintenance period, you can spray carbendazim or chlorothalonil on the orchid once for 20 to 30 days, and spray fungicides regularly, which can effectively prevent pests and diseases.

What medicine is good for orchid sterilization, and introduce you to this most effective bactericidal drug.

Scale insects.

The body of the worm is encased in a carapace, and it is not effective if it is sprayed directly with drugs. It is like a blood-sucking lice, sucking the juice of the plant, thus causing great harm to the flowers and trees, the victim plant not only grows poorly, but also appears yellowing of the leaves, early defoliation and other phenomena, serious will make the plant wither and die.

Conventional insecticides: spray 1000 times of 40 dimethoate EC or 2 5 kung fu emulsifiable concentrate 4000 times, 20 dimethoate emulsifiable concentrate 4000-5000 times, 10 cypermethrin emulsifiable concentrate 1000-2000 times, etc., spray once every 7 to 10 days, 2 to 3 times in a row, which can effectively prevent the harm of scale insects. If you add human laundry detergent when spraying, it will increase the spreadability, and the effect will be better.

It can also be applied to the root, that is, 15-25 cm diameter flower pots buried with ferdigram granules or 3 aldicarb 100 ml, can receive satisfactory results.

The environment in which orchids grow is very conducive to the reproduction of pathogens, especially fungi. The damp and dreary air, the dark and dark space, and the permeable soil rich in organic matter nutrients provide excellent conditions for fungi to grow, so there are many fungal diseases in orchids. How can we overcome environmental adversity?

First of all, the air is required to be clean, the less dust content in the air, the less dust on the surface of the orchid leaves, and the smaller the chance of the spread of germs.

The orchid planting environment should try to avoid facing streets, factories and other seriously polluted places. Secondly, it requires moderate shading, different orchid varieties have different light requirements, the shade is too large, and the orchid grass is tender and green; If the shade is too small, the leaves are yellowed, and the tips of the leaves are scorched, which may cause diseases in the upper body. Only when the shade is moderate, the orchid leaves are firm, shiny, and resistant to disease.

It is best to let the orchid bathe in the morning light, because the morning light is not only conducive to the growth of orchids, but also has a certain bactericidal effect.

Then it is necessary to maintain a certain humidity and flow of the air, too large air humidity is conducive to the breeding and growth of diseases, too small is not conducive to the growth of orchids; In addition, the flow of air can prevent the air from becoming dull and keep the air fresh, so controlling the humidity and flow of the air is also a key measure to prevent diseases. Finally, it is best to disinfect the soil before use. Putting the soil in a pot to steam thoroughly and then cooling it naturally can effectively kill fungi and bacteria in the soil.

Prevention and control methods: Pharmaceutical prevention is the last pass of orchid disease prevention, and it is also an effective method. Fungal diseases can be selected with agents such as carbendazim, tobuzin, chlorothalonil, mancozeb, etc.; Streptomycin, chloramphenicol, etc. can be used for bacterial diseases. It is important to take medication before or at the beginning of the disease, so that it can achieve twice the result with half the effort.

It is more likely to occur once every 10 days in more areas or seasons, and once a month or once a season if the incidence is less severe.

First, various agents are used alternately. For example, carbendazim, toblulu and mancozeb are used alternately, which has a good preventive effect and is not easy to make the bacteria resistant.

Second, the dose can be appropriately lightened, and the lowest concentration of the drug is better.

The third is symptomatic drug selection, and the sensitivity of different bacteria to drugs is also different, such as anthrax with carbendazim, tobuzin and other prevention. Chloramphenicol for bacterial soft rot has a very good preventive effect.

Orchid pests and diseases are mostly controlled by chemical pesticides in modern times. Excessive use of pesticides makes orchids vulnerable to pesticide damage. Long-term single use of chemical pesticides or frequent use will make pests and bacteria resistant and ineffective.

When spraying pesticides, it can also pollute the environment, and in severe cases, it can poison humans and animals. Pollution-free prevention and control of orchid pests and diseases has existed since ancient times, and it is not uncommon in modern times. Pollution-free control of orchid diseases and insect pests has many advantages such as effective, low cost, easy to obtain materials, simple methods, no pollution, and no pollution, which is worth advocating.

The following is an introduction to some folk pollution-free methods for the prevention and control of orchid diseases and pests.

1. Tea bran. Tea bran, also known as tea bran, tea seed cake, is the residue left after the tea seed oil extraction, and farmers often use it to wash clothes. Tea bran contains saponins and glycosides, and its water extract is alkaline, which has a good stomach poison and contact killing effect on pests. Prevention and control methods:

1. Soak the mashed tea bran and boiling water in a ratio of 1:5 for a day and night, and use it to pour the orchid pot, and at the same time pour the place where the orchid pot is placed and other orchid pots, which has a good control effect on snails.

2. Spraying orchid plants with tea bran water has a good control effect on aphids and red spiders, up to 90%.

3 Tea bran water can also kill earthworms. Water the potting soil with tea bran water, and after a while, the earthworms will burrow into the surface of the soil and pick them out. Earthworms have different views on the merits and demerits of orchids, and the orchid world has different views.

There is a view that the earthworms in the pot, when they move, will destroy the hyphae of some orchid fungi and hurt the root tips of the orchid roots, and they are pests and must be eliminated. Another view is that the earthworms in the orchid pot can eat a lot of decaying matter in the orchid pot and the rotten roots of the orchid, and the activity of the earthworm can play a role in loosening the soil, and its feces can also be used as fertilizer for the orchid, and the merit outweighs the fault, so it does not need to be killed. Which is right and which is wrong is up to Lan friends to judge according to their own practical observations, weigh the pros and cons, and make judgments.

2. Cigarette butts. Tobacco contains about 3% nicotine. Nicotinoid has a strong contact killing and stomach toxicity effect on pests. Take about 20 leftover cigarette butts and a portion of quicklime, stir and soak and filter with water, then add 30 parts of water, and use it to spray orchid plants, potting soil and pot bottoms to eliminate ants and other wax-free pests.

3. Laundry detergent and detergent.

Laundry detergent can dissolve the cornea of scale insects, and at the same time form a layer of foam to wrap the insect body, so that scale insects suffocate to death. Laundry detergent solution can control some pests and diseases. Prevention and control methods:

1. Dissolve the laundry detergent with a small amount of warm water, dilute it with water to 1000 times, and spray the orchid plant to kill aphids, whiteflies and red spiders. Dilute to 600 times the liquid, spray once every three days, and continue to spray three times, and all the scale insects die. 2 Press 1::of the bitter bile and water of the pig

Mix a ratio of 100, add a small amount of washing powder, and spray the orchid plant with it, which can prevent anthracnose and soft rot. Spray the orchid plant with a laundry detergent solution, and after the pest dies, the leaves must be rinsed with water several times to make the orchid plant grow normally.