Causes and control knowledge of difficult to treat orchid diseases

In the process of planting orchids, we often encounter diseases of one kind or another. When we encounter diseases, veterans with certain experience can easily deal with them in most cases, but for our novice orchid lovers, they are at a loss and do not know how to deal with them. They often use drugs and fertilizers randomly, but the results are counterproductive. Not only the disease can not be improved at all, but also accelerate the death of orchids, which we do not want to see, therefore, we need to master some basic orchid disease knowledge to scientifically guide our disease prevention and control work.

Let's first talk about several reasons why orchid diseases can not be cured:

The main results are as follows: 1) the disease judgment of orchid is not accurate and the treatment method is simple.

The most common method used by most people when they get sick is to send pictures of sick orchids to their friends and websites for multiple inquiries. These friends and orchid enthusiasts on the website generally judge the disease from the photos and tell you how to treat it, and most people will follow those methods, in fact, this is wrong, because judging the disease by pictures is unscientific. Need to observe and compare with the real object, some diseases still need time to observe and summarize in order to accurately judge what the problem is, can not be confused, our correct approach should be friends and websites and their own views and views, to the Internet to find more information to compare, so the accuracy will be much higher, so the chance of orchid disease cure will be much higher.

2) after the first treatment of orchid disease, we failed to carry on the corresponding treatment for two or three times according to the symptoms, but according to the practice on the website, we relied on this kind of drug for treatment, and after using the drug once, it was finished. It can be cured better, but it is the problem of orchids and drugs. We never look for reasons from ourselves, and we do not reflect on whether our own methods are inappropriate. This method is also wrong, when we find the disease, we should also adhere to the use of drugs, until the complete eradication of the disease, and then stop using drugs. When we find that the disease of orchids is getting worse, we should consider whether the medicine is wrong or the method is wrong.

3) if there is an illness, I want to change the basin to cure the orchid disease.

Especially in the hot and humid summer, the disease of orchids is high in this season. Even healthy orchids are easy to get sick in this season. The most common diseases are carbon maggot, white silk disease, soft rot and stem rot. However, some people think that as long as orchids get sick, it will be all right to pour out orchids and replace them with new pots and plant materials. This view is also wrong. Because some germs invade the orchid, it is useless to change the pots and plants.

4) caused by environmental problems

Most novice orchids use gardening soil to grow orchids, watering is also random watering, fertilization is also random, and the places where they are placed are also random. Orchids need to grow well in a good environment, and can not leave this premise. Otherwise, the end of orchids with great ability will eventually lead to death, and all drugs and prevention and control measures are futile!

So, how can we improve the probability of treatment of orchid diseases?

First, it is necessary to understand the principle of bacterial infection. Most of the causes of orchid diseases can not be found. There are many causes of orchids, but some of them look like diseases but not diseases, which are normal physiological phenomena. Orchid diseases are first of all caused by damage to plant tissues (roots, bulbs, leaves) (this situation is not a disease. It can only be said that the orchid is injured) and the injured tissue invades all kinds of germs, at this time, if it invades mold (fungi), the pathogen will produce mycosis, and if it invades the bacterial pathogen, it will produce bacterial venereal disease. this shows that it has already begun to occur, and only then do we need to take corresponding measures to treat it. We need to find out what the disease is, and targeted medication can cure the disease, otherwise we will be busy in vain and messing about.

Second, after finding the cause of infectious diseases, we must isolate diseased orchids, prevent infection of other orchids, then treat and observe them, use drugs in time, use targeted drugs, and remember not to procrastinate, because the disease develops very fast. A bluegrass can be completely destroyed in a few days!

Third, the problem of drug resistance. Orchids will develop tolerance if they use a pesticide for a long time to treat a series of diseases with the same pathogens. This time, another drug will be used next time. Only after using other drugs can they achieve good therapeutic results and will not produce tolerance. For example, carbendazim, a fungicide, is easy to produce resistance to orchids and should be used alternately with chlorothalonil. In addition, pesticides can only be diluted according to the prescribed ratio to achieve the best effect. When using the original solution, the orchid may die if you do not understand the concentration ratio, so you must pay attention to it.

Fourth, when we find diseases such as soft rot and stem rot, we can only expose the false bulbs when we treat them, then cut off the false bulbs with sharp scissors, then cover them with drugs and plant them again, so that they will recover faster. Because orchids newly planted and new orchids are easily affected by "root growth" and disease resistance, so It is better to continue to use the original orchid basin so that the probability of recovery may be higher.

Fifth, the watering management of the sick orchid in the recovery period is also very important. Most of the orchid tissue injuries are caused by excessive humidity and poor ventilation in the basin, coupled with high temperature. we use pesticides to soak and disinfect and keep slightly dry after less watering, and manage in cool, well-ventilated places, so that the sick bluegrass will recover faster!

Sixth, after the diseased orchids have been treated and recovered, we should always observe whether these diseased orchids continue to be infected, because orchids that have been sick once are more likely to be infected than healthy orchids. So we should pay attention to this kind of orchid. Author: Mei Fei, I will post orchid knowledge and pictures every day, take you to know more about orchids and teach you to raise orchids easily. If you don't understand orchids, you can always ask me or leave a message below. If you like, you can click on the upper right corner to collect or forward to help others!