AS SEEN IN Virginia Turfgrass: Written by Industry Expert Trent Nelson, Aquatic Specialist
It’s not uncommon for irrigation pond managers to invest thousands on irrigation pumps, water quality tests, beneficial submersed aeration systems, and floating fountains, but it’s rare to find a manager who establishes and uses a comprehensive lake management plan. Often times, this apprehension is based on a misunderstanding of lake and pond management and how herbicides and algaecides could potentially have a negative impact on the waterbody from improper treatment. I’m here to set the record straight, and let you know that with the proper choice of a product, application style and timing, algaecides and herbicides can greatly enhance the effectiveness of an irrigation pond management program, while working in conjunction with proactive, sustainable solutions.
Many turf and golf managers fear that aquatic herbicide and algaecide treatments will damage their greens and the surrounding ornamentation, and put a hold on their irrigation water usage. These concerns are valid; shutting down an irrigation system for more than a day or two can be virtually impossible, especially during the growing season. But without proper herbicide and algaecide usage, an irrigation lake could experience more harm than good. If algae and aquatic weeds are allowed to grow and mature, this vegetation can enter irrigation intakes, clogging pipes and pumps and preventing irrigation systems from running properly. In the end, the headache of shutting down an irrigation system to fix a broken pipe or clear nuisance vegetation from a drain will often outweigh the inconvenience of scheduled beneficial treatments.