Sunflower infected with shell insects how to treat, do not need pesticides can eliminate shell insects seven tricks

Sunflower, a perennial flower of Portulaca genus of Portulaca family, is an annual succulent herb. Plant height 10~15cm. The petals are bright in color, such as white, dark yellow, red, purple and so on. There are many varieties of horticulture, including single, semidouble and double. Like the warm, sunny and dry environment, see the sun blooming, morning, evening, cloudy days close, so it has the name of "sunflower, noon flower". How to treat the infected shell insects in the process of sunflower planting? Below, Huacaole shares with you seven ways to kill shell insects without pesticides.

Sunflower infected with shell insects how to treat, do not need pesticides can eliminate shell insects seven tricks

First, sunflower planting

Like warm, sunny and dry environment, extremely resistant to barren, general soil can adapt, self-sowing and reproduction. The most suitable growth temperature is 21-24 ℃. Although sunflowers like warmth and the sun, in hot summer, we should often check the bottom cover of Huapeng to check the air permeability of flowerpots. Those with good air permeability should be watered every day, and those with general air permeability can be watered every other day. You don't need to apply too much fertilizer, just apply fertilizer every two weeks. There are many varieties of sunflowers, including Princess Red, Jiahong, Dahong, Crimson, Purple Red, White, Snow Blue, Light Yellow and Deep Yellow.

II. Control of sunflower scale insects

Sunflower vitality is tenacious, generally there is no pest problem, planting only need to do preventive spraying before germination, diseases and insect pests can be controlled, the most common pest is shell insects. There are many kinds of shell insects, there is a layer of wax on the surface, general pesticides are not easy to soak and kill. And the ability to reproduce is strong, and many generations occur in a year. The control pesticides are generally highly toxic, and Guoguang scale must be treated or Jiechuling is often used in specialized cultivation, so it is difficult to control. Even if the drug is administered, it will not be completely cleared. It will also continue to reproduce and occur, so it is not easy to clean it up. The sunflowers cultivated in the courtyard should be treated manually. The specific prevention and control methods are as follows:

1. Pierce each shell worm with a needle, and then wipe the leaves and stems with a cotton swab dipped in alcohol.

2. Wipe each leaf and flower stem with a wet tissue.

3. Strong spray flushes the scale insects away from the leaves.

4. Find a basin of water and wash it one by one with a soft toothbrush.

5. Scrape off thin pieces of bamboo gently.

6. Cut off the branches with many insect pests and destroy them centrally.

7. Shaving and replanting, no infected branches are re-cut.

Note that the sun flower beetle will relapse after a period of time, check for manual treatment several times. Change new germ-free soil in autumn and replant it. After cleaning up, strengthen the fertilizer and water management of plants, plant growth is exuberant, diseases and insect pests are relatively less. Usually maintain a certain humidity, semimonthly application of 1/1000 potassium dihydrogen phosphate, can achieve the purpose of large color and blooming.

Third, sunflower picture appreciation

Summary:

Potted sunflowers can beautify bedroom balconies and windowsills. Mushroom stems and supports hang outside the pot. open to the sun, such as brocade embroidery, the heyday at noon, blossoming hard to enjoy the warmth of the sun, to add unlimited interest to the room, unique. What is such a beautiful sunflower language? Silent love, light, enthusiasm, loyalty, sunshine, positive flower words are very appropriate?

Time: 2019-04-29 Click: