What medicine is most effective for dried-out osmanthus leaf tips?

If you want a potted osmanthus to maintain good growth and ornamental effect, routine care and management work cannot be careless. But sometimes we find that although we have done a good job in all aspects such as light, temperature, water and fertilizer, the potted osmanthus still shows poor growth. The most prominent manifestation is that the leaf tips of the osmanthus tree become dried out, and there is even a trend of the area expanding. What is going on?

In fact, although the commonly used care work above has been done well enough, dried-out leaf tips can still occur. First, after ruling out the reasons for improper use of the above maintenance methods, what remains may also be a detail we most easily overlook. That is that the plant has been infected with leaf blight.

Of course, it is a special medicine for preventing and treating leaf blight, but before spraying the medicine, we need to immediately stop watering and replenishing water, otherwise it will only worsen the condition and make the dried-out leaf tips spread even faster. Only then can we achieve the effect of prevention and control through targeted medicinal intervention, so that this situation can be brought under control. The following are commonly used prevention and control methods:

1. First, clean up the diseased branches and leaves, and be careful not to let them fall into the pot, otherwise they will continue to infect healthy branches and leaves. Then gather these pathogen-carrying branches and leaves together and burn them to eliminate future trouble.

2. Next, what needs to be done well is the care and management work during the disease period, to reduce or avoid continued occurrence of the disease. To ensure fertility, looseness and slight acidity, properly adjust the soil acidity after loosening the soil, and improve the soil quality to meet the growth needs of the osmanthus tree.

3. Mix some organic fertilizer and a small amount of phosphorus and potassium fertilizer into the potting soil as base fertilizer to increase nutrients and improve the plant's immunity. Since osmanthus is also not tolerant of heavy fertilizer or concentrated fertilizer, especially raw fertilizer. Therefore, it is recommended to use thin and fully decomposed organic fertilizer, and the concentration of phosphorus and potassium fertilizer should be low enough to avoid fertilizer damage.

4. Properly prune branches and leaves, especially those that are too densely grown, to improve ventilation and light transmission. At the same time, pay attention to controlling temperature and humidity, and avoid placing it in a hot and humid enclosed environment, so as to reduce the probability of infection by pests and diseases.

5. After the plant enters the growing season, the plant's growth factors are often in an active period, so it grows relatively quickly, and at the same time pests and diseases are often relatively active. Therefore, it is recommended to use medicine to spray and kill once a week, and after several consecutive treatments, the disease will be eliminated, and the plant's leaves will gradually return to normal.

In the process of disease prevention and control, the medicines that can be used mainly include Bordeaux mixture, thiophanate, carbendazim, benlate, zineb, etc. As long as everyone mixes them with water in a certain proportion and sprays to kill, the effect is very obvious. But if you want the sterilization effect to be more prominent and achieve a radical cure, it is recommended that everyone use the above medicines alternately.