Practice of prevention and control of stem rot

The six-seedling crown Yao Mei bought in April this year also brought several buds, because the crown Yao Mei is an inert flower, it is not easy to blossom, generally more seedlings can only bloom! Just bought a bag of conjoined pieces! After disinfection, the plant material is fairy soil and gold plant stone (about half) and add a little snake wood, the growth is normal, a few buds also gradually grow into half a large seedling! Also smoothly through the hot summer difficulties!

But in mid-August, I found that the leaves of an outermost old seedling gradually yellowed and turned dark brown from the base to 3-5 cm of leaves, and it was broken as soon as I touched it. When I read the materials and books suspected to be stem rot, I turned the pot and removed the symptoms. Plant materials and the remaining seedlings were disinfected and replanted! There is nothing unusual for a few days after planting! But ten days later, the old Miao, who was next to the sign of the disease, was in the above situation again! Also remove, plant materials and the rest of the seedlings disinfect and replant! Over and over again, pour one seedling every 7-10 days! Today, this is the case to pour out an old seedling and add half of the big seedling (picture)! Just finished! A total of five old seedlings have been poured out, and the three and a half big seedlings have been finished together. Today, there is still one old seedling and half big seedlings left! (photo) there's nothing I can do about it! Whether the remaining two seedlings can live or not, whether they are infected or not depends on luck!

Yesterday, I talked about this situation with orchid friends in the orchid shop. I also found that there was a pot of five orchids and an old one in the shop, so I asked the shopkeeper to deal with it on the spot. He has been growing orchids and selling orchids for more than ten years, and he has experience in dealing with this kind of thing. Several orchid friends will first remove the sick old seedlings to see if there is any white at the joint! After getting rid of the diseased seedlings, I found that the connection had been dry and black, so it was possible to pass on the next old seedling! He removed another old Miao who looked like good grass, and he could see that the joint was white, so it was said that it should not have spread here! There should be no problem, then disinfect and cool dry, and all the plants will be thrown away! Replace the new plant material and replant it!

Conclusion: let's not talk about pathology. Xinxing Lanyou and so on have made it very clear! I just talk about the process, how to deal with it, there are experiences and lessons, in order to attract the attention of orchid friends! From the discovery of the first sick seedling to now, there are still two seedlings left. The key treatment is wrong. I did not deal with the connected old seedling in time (it looks like a good seedling, but it has actually been infected). My heart is too soft, and I always take a fluke! Cause one seedling to spread one seedling! You should rather get rid of two more seedlings in order to keep the rest! That is, pay attention to prevention in advance, it will be too late to find out if you get sick! If you are cured, it will be a near death! It should be managed scientifically at ordinary times. Extracted from "Orchid Treasure Dian" Jia Jianhua