Algae can be a ugly covering to a pond. Especially through the hot summer months. And yes, we can kill that algae with some chemicals designed to do that. But what happens after that? If nothing else is done and no other pond management practices used, it will return and probably within a few weeks. Why? Nothing was done to take care of the underlying reason for the algae growth. Usually, the root cause of algae growth is an overabundance of nutrients in the pond. Combine that with long days and warm weather in the summer and we have the perfect conditions for algae growth. If only herbicides are used to control algae, these chemicals will have to be used repeatedly through most of the summer every few weeks. Each time some residues from that chemical will be left behind in the pond to accumulate over time. In addition, the algae becomes resistant to those chemicals each time they are used. More has to be used to achieve the same results until high application rates do not even seem to put a dent in the algae mass.
An alternative is to use multiple pond management practices to correct the root cause of the algae growth. Multiple pond management techniques being used in conjunction correct the underlying cause and create a more stable and healthy pond that does not need as much chemicals used in it to keep the algae in check. When you walk around with a hammer in your hand, everything starts to look like a nail. With a few tools in your bag, the right one can be selected to handle the issue in a better way. Some algae is crucial to a lake or pond because it makes most of the oxygen in the water column that fish need. But by controlling the growth before it gets out of hand, we can use less chemicals and work less to keep the pond looking good.
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