Soft rot encounter

Orchid friends all talk about "soft" color change, and the more I am afraid of ghosts, the more I encounter ghosts. Since the beginning of summer this year, I have experienced soft rot three times, and the first time four seedlings have been sold back to the West. The second time in May, Qiu's lotus of Wumiao Chunlan, first, the foot shell of a new seedling was black and the leaf foot was yellow, did not deal with the expansion of the infection in time, and then preserved one seedling and a new bud after surgical treatment (see figure 1). The third time is a pot of four seasons orchid flower six seedlings of old grass and five seedlings of new grass in early June. at the beginning, one seedling fell ill first, and two seedlings of new grass were infected. when it was found, three seedlings were cut off immediately, and the latter nine seedlings were divided into three pots, the first four seedlings were divided into two pots, and the last five seedlings were divided into one pot. it has been more than 20 days, and there is no sign of the disease (see figure 2). My treatment method is: immediately surgical treatment of soft rot disease, cut off the diseased orchid plant, cut one seedling at a time, observe until the cut orchid Reed head wound turns white, a little brown yellow indicates that the infected bacteria are very difficult to save, do not rush to wash after cutting off, first drop on the Reed head with chloramphenicol eye drops at 1:1 (figure 3) Let it dry and soak it in 5000 times potassium permanganate solution for an hour (figure 4), remove it and let it dry, then drip chloramphenicol eyedrops on the Reed head (the proportion is the same as above), and change to a clean and moist plant. Put some clean charcoal on the edge of the orchid Reed, do not water the root, and then water it after three or five days according to the weather conditions. Add 1000 times agricultural streptomycin to the water during the first second watering, usually drop diluted chloramphenicol eye drops on the Reed head, put it in a cool and ventilated place, and transfer to normal management after half a month. Soft rot is said to be only preventable but not treatable. I am also a dead horse doctor. The method used is not universal and is for reference only.

Key attention: 1, find soft rot timely surgery, do not have heartache, cut until there is no infected vaccine. 2. Do not wash after you find that there is soft rot in the pot, you must remove the disease vaccine before cleaning, otherwise the bacteria can spread easily and infect healthy seedlings. 3. Don't pour the root water, plant it too dry. 4. The original plant material must no longer be used, even after disinfection. 5 pots must be strictly disinfected and cleaned before they can be reused. 6. The knife must be disinfected once at a time to prevent infection.

Author: Zhao Aijun