We are having a dairy farm with 30 cows near Mysore in Karnataka. We had decided to grow azolla and built tanks with dimension 20x6 feet with depth of 6 inches. This has been done in cement.
We innoculated with culture in the beginning and before we could start harvesting, the azolla started becoming blackish in colour. Please can you help what the issue could have been.
After keeping it like that for 1 week, slowly the color changed back to green. However when we harvested the azolla, there were many worms/parasites that came out.
Please help on how to control the worms from coming in the azolla pond. The pond has a plastic roof to avoid rainwater as well as other matter from falling in.
Waiting for your reply.