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OK. But it doesn't cure the root cause.
The main pests and diseases of orchids are:
1) White silk disease: It mostly occurs in the rainy season. Attention should be paid to ventilation and light transmission, good drainage of the potting soil to prevent it, after the onset of the disease, the infected potting soil can be removed, sprinkled with pentachloronitrobenzene powder or lime.
2) Anthrax: It occurs all year round, and it is even more rampant in the hot and rainy season. In addition to improving environmental conditions, the prevention and control method can be sprayed with 800 1500 times of 50-methyl tobuzin wettable powder during the onset period, 7 10 days of each other, and then supplemented with L equivalent Bordeaux liquid, once every half month.
3) Scale insects: In the case of high temperature and humidity and poor air flow, scale insect control
1) When a small number of scale insects occur, you can use a soft toothbrush, a brush or a small brown brush to gently brush along the leaves, or you can use thin bamboo pieces to scrape off the insect body and other manual removal of the insect body, and then rinse it with water.
2) Focus on prevention. When buying orchids, it is necessary to carefully observe whether the seedlings have scale insects, and secondly, because the scale insects are most harmful in May and September, and the orchid is too wet and humid, and the environment with poor ventilation will occur the most, therefore, the daily management should pay special attention to environmental ventilation to avoid excessive humidity.
3) When using drug control, the nymphs hatch soon and have not yet formed a waxy shell, the pesticides used can be used absorbent cotton or gauze dipped in 1 to 5 mashed green onions or garlic liquid, or laundry detergent liquid or wind oil essence 500 times liquid, 40 dimethoate or 25% chlorchlorphine or 80% dichlorvos 1000 times liquid, or quick culling 1000 times liquid, or scale death net 500 800 times liquid, can also be used "Huakang No. 1", "shell spirit" generally sprayed 1 3 times continuously, each interval of 7 10 days 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 and alternate use of pesticides. The simple way to use Ampi-Solution to prevent pesticide damage is to soak cigarette butts in water and then water the flowers, which can prevent and control insects.
Hopefully the longer your orchid grows, the better!!
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Orchid seedlings can be rinsed with water, and the insects can be removed, but the eggs cannot be washed away.
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It is useless to use water, or to go to the place where the flowers are sold, there is a tube medicine, and the raw worms can be treated with some tube worm medicine.
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Can good friends orchid seedlings be washed with water? This can be sprayed with some spray leaves, and it is more difficult to clean up after washing with water. Hope it helps.
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Orchid seedlings can be sprayed with pesticides, and if they can't be washed with water, the insects will not die.
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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.
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Homemade orchid bactericidal insecticide to effectively prevent pests and diseases. music: dear autumnmusician: @iksonmusic
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1. Pesticide prevention and control, in fact, when it is found that there are small insects crawling to the outside of the flower pot, it is already serious at this time, and pyrethroid pesticides can be used, such as cypermethrin, cyhalothrin, etc., and avermectin can also be used for vertical air, matrine, and other prevention and control, of course, according to the insect pest, so it is also very important to know the insects, otherwise the use of medicine is not necessarily good, such as screws to use tetraacetaldehyde to prevent and control. Directly with pesticides diluted after the multiples of watering, half a month once, generally twice to get it, in order to sterilize to prevent the infection of the remaining hand blind fungus, we can be watered together with sterilization when we kill insects, insecticide and sterilization, the use of pesticides in the morning and evening, do not use pesticides when it is too hot. 2. Homemade insecticidesOf course, some orchid farmers can make their own insecticides for not serious potato residues, such as scale insects can be directly controlled with laundry detergent, we can use tobacco soaked in water, garlic soaked in water, chili soaked in water, mosquito coil ash, flower water, etc. to dilute and water with water, the effect is also good, of course, the effect is too serious and the effect is not so obvious.
3. If there are too many insect pests, serious root gnawing, and serious yellowing of leaves, it is recommended to change the planting material, depot and clean, disinfect and dry the roots, and expose the planting material to sterilization and insecticide.
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Don't be afraid of orchid peanut pests, a few tips to effectively eliminate insect pests!
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The simple way is to soak the cigarette butts in water and then water the flowers, which can prevent and control insects.
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Watering with dimethoate 1:1 pairs of water, I have used it, and it is good for insecticide.
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How to properly use fungicides for orchid maintenance in summer?
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