- Emerald Ash Borer
- Giant Hogweed
- Hydrilla: An Aggressive Water Weed
- Invasion Curve
Disposing of Water Weeds
Harvesting Water Weeds
Any activity that cuts or breaks apart weeds carries a great risk of spreading fragments to other portions of the lake (hydrilla specifically, but also for Eurasian watermilfoil and other plants that shoreline residents are likely to target). Hand removal can be used to manage nuisance weed growth near swimming areas, boat slips, or docks, but must be done VERY carefully to prevent fragmentation.
There are lots of different kinds of plants growing amidst the mass of "seaweed". If you are removing plants from selected areas, take a minute to inspect a few for comparison to the line drawing of hydrilla. If you see something similar, send us a photo using the report hydrilla suspects form.
Disposing of Weeds
Harvested plants should be thoroughly removed and disposed of on land away from the lake to prevent fragments or seeds from re-entering the lake. Large fish nets are useful for gathering floating fragments. The weeds are composed largely of water. They can be drained by piling them on pallets or on top of an old window screen placed on top of 2 x 2's that have been set up away from the shore.
Once drained, or dried, they can be added to a well-aerated compost bin (such as one made of welded wire) or windrow where they will decompose rapidly. To prevent the weeds becoming a slimy mess, layer the weeds with dry, brown material such as leaves or straw. A good rule of thumb is to alternate 2" of weeds (drained or partially dried) with 4-6" of leaves or straw. Learn more about composting.
Large quantities of weeds removed in a short time and dumped in a pile or in an enclosed compost container, without the addition of brown material, may stink as they dry and start to decompose.
Tompkins County Solid Waste accepts water weeds that are dropped off in the yard waste collection area. In rural areas farmers may be willing to take water weeds as compost as long as they don't have to do the transporting.
Last updated: June 12th 2013 - 4:11pm