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It should be infested by scale insects, and the white substance is the wax powder on the insect body, which is of course harmful to the flowers.
Milan is very susceptible to scale insects, scale insects reproduce very quickly on Milan, adults are mostly pure white, female insects lay eggs under the shell, hatch into larvae, leave the mother body to crawl slowly to all parts of the plant, the forerunner occupies the leaf axil, the latter inhabits the petioles, the back of the leaf, and sometimes the front of the leaf may also occur, and the larvae can cover the entire branch when there are too many. Once the larvae have chosen a place to live, they can lie down and form shells, form adults, and stay in one place for a long time.
If the sap is not sucked in time, the branches will be like a layer of hoarfrost attached, and the damaged branches will wither and die after a long time.
If it is home maintenance or less damaged plants, you can use manual killing, squeeze it to death, pay attention to the adult worms in the leaf axils are easy to be missed, so it needs to be killed again every once in a while, and repeat it several times. When the occurrence is severe and the insect quantity is very large, it can be sprayed 1000 times 1500 times of rapid culling (ordinary insecticides are not effective). Because the adult insect is shelled outside, it is not easy to be killed by the agent, the best way is to engrave the base of the stem, and then use a cotton swab or brush to kill 500 times the speed of the wound to smear the wound, so that the liquid medicine can rely on the systemic effect of the plant to enter the tree, when the scale insect sucks the poisonous sap, it will soon all die.
It can also be applied with other highly toxic pesticides with slightly higher concentrations, but the original solution must not be used, otherwise it will cause pesticide damage to the plants.
In addition, manual killing can also be done, but it is more laborious.
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Normal, I don't know what it's called.
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Summary. Hello First of all, I'm happy to answer for you I'm a senior medical life mentor Ali The white substance on the dry Milan is salt, which is a refined table salt that is used to flavor food and can also be used to make pickled food. Dried Milan is a traditional Chinese food made from rice, tofu, tofu skin, tofu milk and other raw materials, processed by baking, steaming and other processes, with a crispy texture and delicious taste, it is a very popular snack.
I hope to be able to give you timely help, and finally I wish you a happy life
Milan pole whitish.
It's like having a thick shell.
Hello First of all, I'm happy to answer for you I'm a senior medical life mentor Ali The white substance on the dry Milan is salt, which is a refined table salt that is used to flavor food and can also be used to make pickled food. Milan dried is a traditional Chinese food, made of rice, tofu, tofu skin, tofu milk and other raw materials, after baking, steaming and other processes, the taste is crispy, the taste is delicious, Feng Chaheng is a very popular snack made of silver. I hope to be able to give you timely help, and finally I wish you a happy life
The white substance on the dried milan is salt, which is a refined edible salt that is used to flavor food, and can also be used to make orange dates as a smooth pickled food.
I was asking about the lesions on the Milanese tree poles.
Hello Dear The white color on the stem of the Milan tree is waxy grease, which is a natural protective substance of the Milanese tree, which can prevent the tree from being attacked by pests and diseases.
But Milan was always dead leaves and dead stems.
Hello, dear, that's caused by the lack of moisture and sunlight in your Milan, and when the day is good, get out in the sun and bask in the sun.
Are you a professional gardener?
Hello Kiss is not a professional is a professional gardener's pro.
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Different substances have different characteristics, what substance do you want to ask?