Whether the orchid seedlings purchased online need to be disinfected after receiving them can not be judged from the purchase time, but should be considered from the scale of orchid garden, monthly sales volume, after-sales evaluation and after-sales service of merchants.
It is more important to observe the actual seedling raising of orchids. Because the orchids produced in larger orchid gardens generally have very good regular sterilization and disinfection measures, the orchids produced generally do not carry some harmful germs. Of course, we should also analyze the praise of consumers and observe the actual situation of Lanmiao.
If the roots of orchid seedlings are relatively complete, the leaves are green and tender, and there are no black spots and diseased spots, this shows that the disinfection work of orchid garden is in place and the maintenance management is particularly good. Blue seedlings like this generally do not need to do other disinfection and sterilization work, and can be directly placed in a relatively humid pot with plant materials.
If you still feel a little uneasy, you can also soak the root 1: 1000 times of carbendazim solution or 1: 1000 times of thiophanate-methyl solution for 5 minutes, then dry it slightly and plant it in a flowerpot. After serving, you can spray the leaves with clean medicine.
If it is generally maintained indoors in the northern area, the ventilation condition is relatively poor, so be careful not to spray the leaves too much, that is to say, don't spray the fog to form water droplets and flow into the leaves, just spray it slightly, and spray it twice every one or two hours, which will also help the leaves absorb water and help the plants slow down their seedlings.
If the seedlings received after online shopping have rotten roots or black spots on their leaves, they must be pruned and strictly disinfected before they can be planted in pots. Orchid seedlings put into flowerpots should be put aside alone, and should not be mixed with other healthy orchids to prevent accidents, and should be disinfected regularly. You can spray jinggangmycin or thiophanate-methyl once every two months, which has a good preventive effect.