Answer: There can be a number of causes for excess algae in a pond (although often related to an excess of silt and/or nitrogen or other nutrient in the water); the only way to determine the specific cause and source of the problem in your ponds is to do an on-site evaluation along with water testing. You might want to consult with your local county extension for advice and possibly further referrals to appropriate water quality professionals in your area. Their telephone number is 762-2735. I'm sorry I can't be more helpful.
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