How to prevent, treat and treat the pests of copper grass;
Brown soft dirt: when the total amount is small, it can be brushed off and sprayed immediately. Drugs such as omethoate EC, triadimefon EC and pyrethroid can be used. Starscream: Some leaves can be cut off when they are damaged, and more should be treated with drugs to prevent them. Or clean with soap or soap powder. If the total amount is small, you can also wipe off the soap with a cloth.
Main manifestations of brown spot disease harm
Brown soft scales, alias widely eat brown soft scales, soft scales. In the northern region, indoor diseases are serious. The key parasites of insects are on the front and back of leaves, and the key is to make a living by inhaling sap. When the broom blooms, the leaves and stems will wither slowly, and the leaves, petioles and branches are covered with egg-shaped dark brown protrusions 3~4mm long, which are close to plant cells. There will be a bright sticky substance directly under the blade.
Prevention mode
When the total number is small, you can use a manual service brush to remove bugs or cut off branches containing bugs. You can brush off bugs with a soft toothbrush.
Technical professional pesticides can be selected for immediate spraying: omethoate EC 1000 times solution, cartap EC 1000 times solution and pyrethrin 2000 times solution.
The roots of China copper plates originally cultivated in China can use% carbofuran powder or 15% aldicarb powder. The actual use depends on the size of the potted flower pot. Generally, the nominal diameter of potted flower pots is 20cm, and the depth is 13cm. Buried with carbofuran 15~20g or aldicarb 0.5~ 1.0g, and watered after application.
Main manifestations of red spider injury
Spider worm is very small, and when its harm is found, the damage to potted flowers is usually very serious. The harmful method of this insect is to stick the mouthparts into the leaves of potted flowers to absorb the juice, which will seriously damage the chlorophyll of potted flowers, and the leaves will appear gray-yellow spots or soft spots, and the leaves will become more and more yellow or even fall off. Starscream breeds rapidly, and it will be upgraded to a generation in five days, so it is necessary to find it early and treat it early.
Prevention mode
When some leaves are damaged, the leaves of insects can be removed; When there are many leaf injuries, you should take medicine as soon as possible to prevent them.
The effective method is to wash with soap or soap powder. The whole plant can be immersed in water, and it is not afraid of water. Take it out after 2~3 minutes, and wash the soap off the surface with tap water. This way is very useful. If there are fewer red spiders, you can also wipe them off with a soapy cloth.
Through our introduction, I believe that everyone has a deeper understanding of how to treat copper worms.
Efficacy, function and indications of Ligustrum lucidum;
1, Ligustrum lucidum is cool,