The title of rose medicine jar the common black spot can be easily dealt with with these techniques.

If you are going to plant Chinese rose on your balcony or yard, be prepared to spray regularly. Rose is known as a medicine jar because it is prone to fungal diseases and insects. If it is not dealt with in time, the whole rose will suffer.

The most susceptible fungal disease of Chinese rose is black spot, which is easy to be induced in summer, especially in the season of high temperature and humidity.

This situation is generally caused by excessive watering or poor environmental ventilation, of course, it may also be some fungal spores brought with water, it is not difficult to solve this problem, but it must be dealt with in time, otherwise the disease will be aggravated. The whole plant will be damaged.

After being infected with black spot, the leaves of Chinese rose will appear some black spots, some are brown, and then the spots will slowly expand, and the leaves will also appear yellow leaves at the same time.

At this time, if you touch its leaves slightly, you will find that the leaves are easy to fall off. If not dealt with in time, these night shifts can easily extend to the whole plant, and if there are some healthy plants nearby, they are also easy to be infected.

What you need to do at this time is to cut off the diseased leaves and diseased branches in time, and the withered branches next to them should also be cut off in time. In addition, we should pay attention to timely cleaning of some fallen leaves on flowerpots or soil to avoid diseased leaves or diseased branches remaining on them. These diseased leaves and diseased branches carry germs, and if they are not cleaned up, they are easy to cause secondary infection.

Improve the ventilation and light transmittance of the environment. If there are some crossed branches on the branches of the rose, or if there are some branches and leaves that grow too closely at the bottom of the branches, these should be cut off in time to maintain good ventilation and light transmittance. Minimize the breeding of fungal diseases.

The surrounding environment should also be kept clean. Another key point is to spray germicides in a timely manner. The best thing is to spray chlorothalonil or Topurazine, and you can also use Dysen zinc solution, which is usually sprayed once every 5-7 days. Black spot can be completely removed by spraying 3-4 times in a row.

When flower friends have raised rose flowers, they must check regularly to keep the environment suitable. The maintenance position should have more than 6 hours of direct light every day, and keep enough light. In addition, it is necessary to keep the environment breathable and transparent, so as to avoid being kept in an airtight space. When it is muggy in summer, the rose maintained by potted plants needs appropriate shade.

Rose flowers are afraid of much water, the soil can not be often wet, but also can not accumulate water, usually check whether the soil is dry before watering. Do not pour water on the leaves at night, or you will be susceptible to black spot or other fungal diseases.

Rose flowers should still maintain good drainage of the soil and avoid stagnant water in the soil, and be sure to wait until the soil is dry before watering. There is also to pay attention to regular application of fungicides.