Cymbidium (T-J) Disease Causes and Treatment Methods
Let's talk about the causes and treatment methods of Cymbidium (T-J) disease in the field of green plants, and let's get to know more about it.
Cymbidium (T-J) Disease Causes and Treatment Methods
Cymbidiums purchased come with bacteria, and there are many black and brown spots of varying sizes on the leaf surface. In a humid and poorly ventilated environment, the spots quickly expand and spread rapidly. Overwatering, poor soil quality, and excessive nitrogen fertilizer can cause (T-J) disease. You can choose to use 75% Bavistin 500 times liquid or 50% carbendazim wettable powder 500 times liquid for prevention and treatment.
Causes of Cymbidium (T-J) Disease
1. Cymbidiums purchased come with bacteria, and there are many black and brown spots of varying sizes on the leaf surface. In a humid and poorly ventilated environment, the spots quickly expand and spread rapidly.
2. Overwatering of cymbidiums leads to excessively wet potting soil, or being blocked by wind, continuous rainy weather, and rising temperatures can easily trigger (T-J) disease.
3. Poor soil quality, limited by the small pot and influenced by water and fertilizer, even good quality soil can become poor after 3 years, making the orchid plant weak and highly susceptible to (T-J) bacteria.
4. Excessive application of nitrogen fertilizer during the growth of cymbidiums can make the new orchid seedlings grow too fast and easily get infected. Moreover, if the space for home-grown cymbidiums is small and poorly ventilated, local environmental pollution can also be harmful to the orchids, making them prone to (T-J) disease.
Symptoms of Cymbidium (T-J) Disease
When the condition of Cymbidium (T-J) disease is not severe, there will be many spots on the leaves, reducing their ornamental value. In severe cases, the leaves will fall off, the orchid plant will not bloom, and it will lose its ornamental value. In the first half of the year, it will affect the growth of old leaves, and in the second half, it will affect the growth of young leaves.
Treatment for Cymbidium (T-J) Disease
Cymbidium (T-J) disease needs to be sprayed with medicine as soon as possible. You can choose 75% Bavistin 500 times liquid, spray once every 3 days, for 3-4 consecutive times, or use 50% carbendazim wettable powder 500 times liquid for prevention and treatment.
Prevention and Treatment Methods for Cymbidium (T-J) Disease
1. When the condition is mild
Remove the diseased leaves and burn them to prevent bacterial transmission. Isolate the diseased plant from other cymbidiums and spray (T-J) fungicide on the diseased plant every seven days, for 3 consecutive times, with an efficacy of over 90%, usually effectively controlling the harm caused by the disease and killing the bacteria in the affected area.
2. When the condition is severe
Change to a new pot, remove the diseased plant from the pot, trim the small diseased roots and leaves, soak in potassium permanganate solution for disinfection, then plant in a new pot, and continue to spray the anti-disease medicine once a week for three times.
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