MySheen

What about the rust spots on the leaves of hibiscus

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Some flower lovers prefer to raise this kind of flowers, the original plant is relatively healthy, and then the leaves grow some brown markings, can not help but fear that it will harm the whole plant, so how to deal with this problem in the end?

First, symptoms

The leaves of the plant gradually grow some round or irregularly shaped markings, which are relatively small, showing about 1 mm to a few millimeters, looking yellowish brown and some dark brown. Unsurprisingly, these brown spots are surrounded by a yellow halo, and these plates are made up of brown spots. Seriously, it will show that the whole leaf is covered with these terrible things, the leaf will change, and then it is easy to fall.

Second, the reason

It can be said that it is mainly due to the fact that a fungus called the subphylum fungus and a variety of other bacteria damage the plant together or in a mixture. These bacteria are in the form of hyphae or fruiting bodies that spend the winter on diseased leaves and then spread through wind and rain. It is usually due to the poor permeability of the planting area or the fact that the weather is always warm and rainy.

III. Methods

The first step is to quickly pick off these diseased leaves and burn them all together, so as to avoid further spread of the bacteria.

(2) Prevention and treatment. The branches and leaves can be regularly sprayed with 600 to 800 times the liquid of Guoguang Yintai, coupled with Guoguang Sitalin, which can effectively prevent disease while replenishing it.

If you are just sick and not too serious, you can spray 25% of prochloraz EC or 50% of polymanganese zinc wettable powder on the branches and leaves for 2 or 3 times in a row. Once a week.

 
0