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Types of Pond Algae

Algae
Algae

If algae is growing at a problematic level than it is time to look beyond the algae and mat and deeper into the pond chemistry. High pH and Phosphorous levels are the leading cause of string algae.

Curly-Leaf Pondweed
Curly-Leaf Pondweed

Curly-leaf pondweed can be removed by raking or seining it from the pond but will reestablish from any remaining roots. Fertilization to produce a phytoplankton or algal “bloom” prevents the establishment of most bottom rooted aquatic weeds and produces a strong food chain to the pond fish.

Duckweed
Duckweed

Duckweed Control in Ponds Duckweed has the ability to multiply rapidly and can infest a pond or quiet bay in a matter of days. Duckweed can be a major nuisance for homeowners due to its ability to turn an otherwise beautiful pond into an unsightly mess.

Hydrillia
Hydrillia

Hydrilla is a perennial plant that forms dense colonies and can grow to the surface in water over 20 feet deep. Hydrilla branches profusely and after reaching the surface it extends across it forming thick mats. Hydrilla can reproduce by fragmentation, from seeds, from turions (axillary buds), and from tubers.

Milfoil
Milfoil

Ponds grow a variety of pond weed types, many of which look similar. The aquatic weed identification information below lists the most common weed types -- including emergent, submerged, and floating weeds -- to help you explore and identify aquatic weeds in your pond or lake.

Water Hyacinth
Water Hyacinth

By: Mike Gannon | Posted On: January 15th, 2014 | 52 Comments on WATER HYACINTH – IN AND OUT OF YOUR WATER GARDEN | In: AQUATIC PLANTS, NATURAL PONDS, WATER GARDENS You could say that the history of the Water Hyacinth began on December 16, 1884.

Water Lettuce
Water Lettuce

Water Lettuce is a non-native, perennial plant. It is free floating with green, velvety leaves. The leaves range in size from 1" - 6". Mechanical Control. Water Lettuce can be controlled by raking or skimming it off the pond's surface. Chemical Control. There are several options to control Water Lettuce.

Watermeal
Watermeal

Watermeal can be removed by ranking or seining it from the pond’s surface but it is so small it is very difficult to physically removed. Biological Control Options Tilapia will consume watermeal but are a warm water species that cannot survive in temperatures below 55 F.