My orchid has fungus on it. What should I do?
Fungus & Bacteria on Orchids
To prevent fungus & bacteria
Apply a solution of GET OFF ME! spray. This solution is a natural water based cinnamon herbal infusion with a few drops of baby shampoo as a surfactant. It's used to control common insect pests on orchids while also protecting the plant from fungus and bacterial problems. I spray this on my orchids every time I water them. If you don't have this then sprinkle cinnamon (yes the common spice in your cabinet) on the base of your orchid.
To TREAT fungus & bacteria
Okay, so you have found either fungus and/or bacteria or signs of rot (such as dark slimy spots) growing on your precious orchid leaves! This literally just happened to me last week with an orchid I saved.
Here is what to do…
1. Separate your orchid from the rest to prevent the spread of disease.
2. Apply Physan 20 to the affected area. Physan 20 is typically poured over the area of the plant you wish to treat but you can pour through the mix for extreme situations.
How to make a batch of Physan 20: mix at the rate of one tablespoon per gallon of water. You must use the batch within hours of making it up because it loses its effectiveness after that. You can use it when you spot trouble or to ward off trouble by applying maybe once a month or so.
If you don't have Physan 20 then pour full strength Hydrogen Peroxide on the affected area. Repeat every 2 to 3 days until its stops fizzing. You can also make a mixture of this with a FEW drops of mild soap detergent and spray it on the affected area. Don't use too much soap!
Hope that Helps,