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It is a scale insect, and the control method: the control of flower scale insect.
The body of the scale insect 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. The affected flowers include Milan, jasmine, camellia, and smile.
The methods of prevention and control are:
Mix liquor with water in a ratio of 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.
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The most common insect pests are scale insects and earthworms.
Scale insects Scale insects mainly gather at the young shoots of leaves, sucking the juice and secreting pathogens at the same time, the stems and leaves gradually turn black, and the leaves wilt. The scale insect has a strong reproductive ability, it can occur multiple generations in a year, and an adult can reproduce hundreds, if measures are not taken to prevent and control it in time, plant death is inevitable.
Prevention and control methods. Prevention should be the main focus on scale insects. Usually pay attention to observe the plant, once the insect pest is found, deal with it as soon as possible.
At the onset of the disease, it can be treated with artificial and drug treatment. When small insects appear on the leaves, scrape them directly or remove them with a thin bamboo skewer. If a large number of insects appear, they can be sprayed with 2-imidothion emulsion solution, or dimethoate emulsion, which can be killed by spraying 1 or 2 times.
Earthworms When they see earthworms being classified as pests, flower friends can't help but be a little surprised, yes, you read that right, earthworms are pests of Junzi Orchid. If there are earthworms in the pot, they will drill everywhere, so that the young roots will be injured, affect the nutrient absorption of the orchid, and it is easy to cause root rot.
Control methods Normally, earthworms will not grow in the soil. However, it should be observed often, if there are round soil particles on the surface of the potting soil, immediately water it with dichlorvos emulsion mixed with water. After watering, the earthworm drills and is removed immediately.
Repeat the above steps again after a week**.
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I'll teach you a good way that is harmless to people, harmless to plants, and within reach: Eliminate all kinds of black, green and red aphids infected by family potted plants (including white flocculent cane aphids, the mentioned "winged small black worms" may be black aphid adults who want to migrate and reproduce), you can use strong wine (more than 50% degrees) to fill the watering can, and spray the aphid body, such as the gentleman's orchid mentioned by friends (including phoenix bamboo, pocket coconut, evergreen, junzi orchid, etc.), because the aphid is very easy to burrow into the leaf axils to hide and harm the young stems, The leaf armpits must be gently broken open and sprayed into the spirits. Mechanism:
Because the ethanol in the liquor has a strong infiltration and solubility of the tender aphid body, and also has a forced infusion of the aphid's mouthparts - causing insect solubilization damage and alcohol poisoning, so that the aphid can die within a minute. The use of pesticides to prevent poisoning and pay attention to the taboo storage of children, it is safe and easy to obtain to kill aphids with liquor, it is a green insecticidal method, the effect is very significant, and there is no "resistance"! Please try it for your friends, and carefully observe and verify.
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It can be sprayed with 1000 times of 25% imithion emulsion, or it can be sprayed with 40% dimethoate emulsion and 1000-1500 times of water to make a solution. Generally, it can be killed by spraying 1-2 times.
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Just use 1500 to a dozen dimethoate, you can also use the watering method without a sprayer, and the pesticide store has a small 5 ml for sale!
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After pouring cake fertilizer and water on Junzi Orchid, there were many insects, just spray "it", and all the insects were destroyed.
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Take a cigarette, get the tobacco out, take the water blister, soak it for 1 hour, take all the tobacco away, and spray it with this water.
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