Garden & Pond Top Tips

Control Weeds This is the one pond problem everyone has to face. There are five kinds of aquatic plants-algae, floating, emergent (foliage above the water), submersed (most of the plant is under water) and floating leaved. Some plants are desirable. Plankton algae is a source of food and oxygen. Filamentous algae is that green slime draped over your hook. (It's not good.) There's a tipping point when weeds begin to take over a pond, says Ian Menzies, business manager for Imas Aquatic & Garden Services. The pond has to be constructed carefully, or in a short time "you get a wetland," notes Menzies. IMAS sells a line of aquatic products to manage nuisance and exotic weeds and algae.