I am not an expert either but I do know that hot summer weather can facilitate such algae blooms- sun, elevated water temperature makes for a perfect environment even without fertilizer runoff.
Just wanted to mention, for those interested, that the floating plant islands in some of our ponds in TV have been put in so that the plants can help draw the extra nutrients from the water naturally.
I was told it is being done in partnership with the U/F horticulture dept. and research is being logged for review.
That's cool.
Of course, proper use of any fertilizer is always important. Getting individuals to go along with the program is not easy. There will always be those who do what they want- no matter the guidelines.
The old.. "If a little is good, a lot is better"- hardhead way of thinking.
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