Green Algae in My Greenhouse

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Question: I have a small greenhouse business and this year I seem to have a problem with a green-like algae/ fungus that grows on the surface of my pots and flats. What is it and how do I get rid of it? Will Decree fungicide work?

You are correct it is green algae and your more than welcome to try “Decree” Fungicide, but my understanding of that product is that it is very specific in its inhibiting mode of action.  One idea for you would be to be very careful in how you use this but you could use a diluted concentration of bleach and clean your planting beds, trays, and other equipment that the algae is growing on.  Keep in mind algae has very little effect on plant growth and nearly every greenhouse has some algae growing within it.