For those who have experience in flower cultivation, pest control is the first thing to pay attention to. Only by preventing pests can flowers and plants grow healthily. But for the novice, it needs to work hard to raise flowers. You must know these kinds of insect pests.
1. Thrips
Plant pest performance:
It distorts the leaves and discolors the flowers; it's an extremely small insect, ranging in color from white to dark brown.
Treatment method:
Rinse with water every few days. In serious cases, it should be controlled with medicine. In case of large amount of nymphs, it should be controlled once every 7-10 days and 3-5 times continuously.
Drugs such as chlorpyrifos EC, three cypermethrin EC, deltamethrin EC, fenvalerate EC and other sprays.
2. Whitefly
Plant pest performance:
The damaged leaves turn green, yellow, wilt, even the whole plant is dead. Some small insects are yellow or white heart-shaped, flying insects, usually gathered on the back of the leaves.
Treatment method:
Isolate other plants that are free of insects; pinch off a few with your hands or cut off the leaves. Serious sprayable control, such as jibujing, acetamiprid, chlorpromazine, nitenpyram, chamomile emulsifiable concentrate, zinc cypermethrin emulsifiable concentrate, fenvalerate, Kungfu inulin or Uranus, etc.
3. Aphids
Plant pest performance:
Aphids can hinder the growth of plants, making the leaves curved and twisted. The color of aphids is green, black or brown, usually hiding on the side and back of the leaves.
Treatment method:
You can't wash it with water. Stick it off or pinch it off with your fingers. The second is spraying, insecticide or soapy water. You can make it yourself and spray it with cigarette butts.
Serious can only use medicine, such as: Flower God, imidacloprid, aphid loujing and so on.
4. Mealybug (scale insect)
Plant pest performance:
Leave leaves and rhizomes white and soft, usually on the lower part of the plant.
Treatment method:
To isolate other healthy plants, you can kill the mealybug with toothpicks or spray it with strong water. Wash the plants with 1:1 solution of water and alcohol, so that not only the insects can be washed out, but also the ones that can't be washed out can be killed.
Serious can only spray, including imidacloprid, Flower God (root irrigation + spray), malathion and so on.
5. Spider
Plant pest performance:
The disease is located in the leaves and stems. The leaves are twisted and yellow. There are light spider shaped small things on the leaves. This kind of insect is very small, less than 1 mm. It is difficult to find a small amount.
Treatment method:
If there are a lot of such insects in plants, they should be thrown away. When some leaves are damaged, the insect leaves can be removed; when more leaves are damaged, spraying should be carried out as early as possible.
The commonly used pesticides are acaricide, dicofol trichloride, dimethoate, sumac and so on.