Control of Orchid Rot Disease
For orchids, the harm of rot is very serious and spreads rapidly. There are two kinds of orchid rot: soft rot and black rot.
In the early stage of soft rot, tiny brown water stains appear on the leaves, and then expand into black moist patches, which are easy to rupture and discharge foul-smelling liquid. After that, the orchid plant will rot quickly. The disease is easy to occur in the rainy and humid season above 30 ℃.
Black rot is a fungal disease, which often occurs in leaves, root bases and growing points. Translucent spots initially appear at the diseased site, which gradually expand, the tissue blackens and gradually rot. When it begins to appear on the root system or underground stem, it should be paid attention to. If it is not controlled, it will soon spread from the root system to the whole underground stem, until the plant will be completely destroyed. In a very short time, the disease can make the orchid rhizome turn black and the leaves blacken and rot.
After the orchid is infected with rot disease, the orchid should turn the basin and change the soil in time, cut off all the tissues of the diseased part and burn them centrally, then wash and disinfect the cut with clean water, smear sulfur powder, dry it in a cool and ventilated place, and then put it back on the basin after the incision shrinks. After putting on the basin, do not water or spray for 3 to 4 days. Use 50% thiram plus 500 times water to make a solution and spray it once. The planting environment should be ventilated and illuminated. The diseased plants after rescue should be temporarily isolated from other orchids to avoid infection. When it grows normally and is not contagious, it can be put together with other orchids.
- Prev
Cultivation and Management of Orchid
1. Orchid cultivation places: orchids can be cultivated indoors, balconies, courtyards, greenhouses or large-scale orchid farms. 2. Choose orchid pot: mud basin is the first choice for orchid cultivation, which is permeable and breathable, not easy to waterlogging, easy to manage, and not easy to rot. 3. Soil quality selection:
- Next
Causes and Control of Leaf Tip withering and scorching of Orchid
The leaf tip of orchid is withered and scorched, which is one of the common diseases. It not only damages the integrity of orchid leaves, affects the ornamental value and economic value, but also seriously affects the healthy growth of orchid plants, and even endangers the life of orchid plants. After years of practice and exploration, it is concluded that
Related
- A course of planting techniques and methods on how to grow carrots
- How to plant the latest tulips?
- Is it better to pick tea in the morning or in the afternoon? When is the best time for tea to be picked? what is the third or fifth tea?
- Launch Yuanxiao Happy combination Haocha + Tea Yuan healthy Taste
- Penghu Tourism "Fireworks 20 Parade with You"
- 2022 West Lake Happiness holds "Digital Revitalization Voucher" and draws iphone13 and laptop.
- Banqiao Fuzhou social houses are designed to change start-up combined with police elimination to create a safe and livable environment
- The convenient measure of "mechanical weeding" in Xinbei has been abused and the Agriculture Bureau has imposed heavy penalties on the illegal land consolidation.
- Changgeng University Joins Hands with Four Memory Factories to Rescue Memory Talent Shortage
- The list of Taiwan's top 100 MVP managers is listed by the Director-General of the Farmers' Association of Sanxia District.