How to get rid of the white insects on the osmanthus flower

The white insects on the osmanthus tree can be made into a solution with laundry detergent, diesel fuel and water in a ratio of 2 to 2 to 6 and sprayed on the plant for control. This small white insect is a scale insect, which mainly sucks the sap of plants for food, and is very harmful to osmanthus trees, so it must be sprayed in advance for prevention and control.

Mealybugs, must be sprayed, go to the flower shop to see the purchase of a package of plant insecticide Parafen, a pack of watering can spray plant leaves, the rest of the watering pot soil, spray three or four times a week can get rid of the pest.

It can be made into a solution with laundry detergent, diesel fuel and water in a ratio of 2:2:6 and sprayed evenly on the osmanthus tree.

Small white insects on osmanthus trees may be tree lice, or they may be scale insects.

1. Tree lice control methods: there are mainly the following 4 types.

Strengthen plant quarantine: under natural conditions, scale insects are less active, their own transmission and diffusion ability is limited, and their distribution has certain limitations. However, with the development of production, the exchange and transportation of flowers are frequent, and the opportunities for artificial and long-distance transmission of pests and diseases are increasing.

The quarantine work stipulates that flowers can only be transported without dangerous pests and diseases (including various propagation materials). If pests and diseases are found, various effective measures should be taken to eliminate them to prevent further spread.

Manual control: In the process of cultivating flowers, if it is found that there are individual branches or leaves with scale insects, they can be gently brushed off with a soft brush, or combined with pruning, and cut off insect branches and leaves. It is required to be brushed, cut, and burned in a centralized manner, and do not litter.

Pesticide control: according to the various occurrences of scale insects, spray pesticides in the peak stage of nymphs. Therefore, most nymphs hatch for a short time, the body surface has not yet secreted wax, and the shell has not yet formed, and it is still easy to kill with medication.

Spray 1 time every 7-10 days, 2-3 times in a row. It can be sprayed with 40% dimethoate 1000 times, or 50% malathion 1500 times, or 255 imithion 1000 times, or 50% dichlorvos 1000 times, or deltamethrin 3000 times.

Protection and utilization of natural enemies: such as the Australian ladybug, the big red ladybug, the parasitic shield scale, the golden aphid wasp, the soft scale aphid wasp, the red-spotted ladybird, etc., are all effective natural enemies, which can be used to control the harm of scale insects, and should be reasonably protected and utilized.

Second, scale insect control methods:

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 plants, thus causing great harm to flowers and trees, the damaged plants not only grow poorly with mountains, but also appear leaf yellowing, early defoliation and other phenomena, serious will make the plant wither and die. 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 watered once in mid-April, and then every half a month or so, and it is effective for 4 consecutive times.

With 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, and the scale insects can be wiped off and killed. 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 plant with alcohol can remove the scale insects, and it can be removed very cleanly and thoroughly. If you wipe the orchid leaves with alcohol, not only can you get rid of the scale insects, but also the larvae that are not clear to the naked eye, and they are completely killed.

Use diesel, laundry detergent, and water to adjust the mother liquor according to the key line gear ratio of :6, at this time the mother liquor contains 60%, milk-like, dilute the oil content of 30% liquid with water, and carefully spray the scale insects on Milan, kumquat, and manuscript cycads. 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.

There are white insects on the osmanthus tree, generally tree lice or scale insects, you can use a soft brush dipped in insecticidal solvent to brush off tree lice, and spray with "scalp must be cured" to kill germs and insect pests. Let the osmanthus tree grow and develop in a high-quality ventilation environment, which can effectively avoid insect infestation. In addition, do not water too much or let the environment be too wet, otherwise osmanthus is also prone to small insects.

The small white insects that emerge from the osmanthus tree may be replaced by tree lice. Tree lice mainly survive by sucking the sap of plants, which eventually leads to corkification of the cortex and the decay of phloem and ductal tissues. The manual solution is to use a soft brush dipped in insecticidal solvent to brush out tree lice, and then prune the bad branches and leaves in combination with pruning work.

Scale insects are one of the more common insect pests, which inhabit branches and leaves, causing yellowing of leaves, wilting of branches, decline of tree strength, and even induce other diseases. The scale insects are relatively small, but the reproduction speed of the group of hail limbs is particularly fast, and they are sprayed with drugs with strong efficacy such as "cocoon must be cured" to achieve the purpose of killing bacteria and insect pests.

Let the osmanthus tree grow and develop in an environment with high-quality ventilation conditions, which can effectively avoid the infestation of germs and insect pests. If the ventilation is not smooth and the growth temperature is too warm, it is easy to attract insect pests to live and multiply on the osmanthus tree, causing damage to the whole plant.

Overwatering and overly wet environments are also one of the main factors that attract small white bugs. Especially in rainy weather, if the environment is too humid, it is easy to breed bacteria and insect pests. If too much water soaks the rhizome, the rotten environment will cause small insects to multiply.

You can use laundry detergent to soak in water and spray it to try, it should be easy to use and not hurt the tree, spray once in 10 days and a half months, if not, you can only go to the flower shop to ask.

Is there a picture?

Scale insects and whiteflies are both white, but the treatment methods are different.

Turtle wax scale insects. Spray the whole plant evenly with 600 times the aqueous solution of killing phosphorus or meso-killing water, and basically kill all of them at one time. 5-7 days again the effect is better.