If you find that the leaves of the plants and flowers are covered with white furry things, don't think that it is a good thing, it is not moldy, these furry cotton flocculent things are a pest, its name is "blowing cotton shell worm", if not treated in time, it will continue to multiply, and the whole plant will be infected.
If left unchecked, these cotton-blowing insects will multiply very quickly, causing fatal damage to the plant, and the first thing the leaves show is yellowing and wilting.
Cotton-blowing shell worms are more common in the spring and summer, they will multiply very quickly, and when the larvae will secrete some white cotton wool-like waxy substances, these things will hinder the plant from photosynthesis, causing the leaves to wither rapidly.
Once found the plant is infected with cotton-blowing mesozoa. To cut off these sick leaves and diseased branches in time, and to discard the diseased leaves and branches into the garbage can, directly destroy, do not let them continue to stay on the soil surface, in addition, you must spray water in time, you can use a high-pressure spray kettle to spray, increase the environmental humidity, can reduce the blowing cotton shell insects.
I have also asked me before that the plants at home grow a clump of white fluff on the back of the leaves and the petiole, in fact, these are also blowing cotton shell worms, they will suck the sap of the plant, is a pest that reproduces particularly fast, and aphids have a fight, because these white substances will have some waxy, and it feels very bad to touch.
If you are planted outdoors, you can also find that rainy days can not wash away these white substances, because these white wool flocculents have a lot of wax in them, which can prevent them from being soaked by water.
If the blowing cotton shell insects are not removed in time, these plants will also be infected with various diseases, including the common gray mold and other diseases and insect pests.
Some friends who have been raising flowers for a long time, as soon as they see these pests, they are extremely annoying, and even want to pinch them all by hand, if these blowing cotton shell insects are still larvae, it is easier to clean up, and they can be directly pinched to death by hand, but their larvae may also reappear, so they must be eliminated thoroughly.
Once a plant is found to be infected with cotton-blowing insects, it is necessary to isolate the plant in time to avoid infecting other healthy plants.
Severe diseased leaves and diseased branches are cut off, but also appropriate spraying of some insecticides, if you do not want to use insecticides, you can use alcohol with water, mixed in a 1:2 ratio, and then evenly applied to the infected insect pests, so that the insect pests can also be removed.
There are also some friends who will use vinegar to remove, you can use a cotton swab dipped in vinegar, evenly applied to the location of the infection of cotton-blowing insects, but also to achieve the effect of safe insect removal.
Blowing shell insects are a very difficult insect pest to kill, if they are still larvae it is easier to remove, direct spray can kill them, such as the common oxidized fruit, malathion and dichlorvos. However, after these cotton-blowing insects become adults, there will be a waxy shell on the back of the insects, and the removal effect with these insecticides is not so ideal.
So this is why once the insect infestation is found, it should be dealt with in time and not let it continue to plague the plant.