Q: Chun Mei is infected with the pathogen of scale insects, and it is difficult to remove it by drugs and brushing teeth. How can it be effectively eradicated?

The insect body of scale insects is wrapped by horny shells, so it is not easy to be sprayed directly. Like a louse that sucks human blood, it sucks the juice of plants, thus causing great harm to flowers and trees. Injured plants not only grow poorly, but also have yellow leaves and early leaves, which will make the plants wither and die seriously.

Preventive and control measures are:

① Liquor is added with water in the ratio of 1:2.

. During pest control, the surface of the basin soil is thoroughly poured. The spring room temperature of scale insects is 7.

℃

When did you start the activity? Available at 4 o'clock

Water it once in the middle of the month, and then every half month or so for 4 days.

It works twice.

②

Use vinegar (rice vinegar) 50

ML, soak the cotton ball in vinegar, and then gently wipe it on the stems and leaves of the injured flowers and trees with a wet cotton ball to wipe off the scale insects and kill them. This method is not only convenient and safe, but also can control pests and make injured leaves turn green and shiny again.

③

Wipe the diseased plant gently and repeatedly with alcohol, and the scale insects can be removed, and the removal is completely clean. If you wipe the diseased leaves of orchids with alcohol, you can not only remove scale insects, but also completely kill the larvae that are invisible to the naked eye. In the second year, the harm of scale insects was rarely found. This method is simple, safe and effective.

④

Pressed with diesel oil, washing powder and water

10:0.6:6

The proportion is adjusted to mother liquor, containing 60%.

It is milky white and contains 30% oil after being diluted with water.

After the potion, the scale insects on the flowers were carefully sprayed. After a week, most of the scale insects changed from bright orange to shriveled state, indicating that this method has a good control effect on scale insects.