Aquatic Plant Control Program, New York State.
Abstract
Waterchestnut (Trapa natans) is an annual plant, thereby relying on the production of the seeds for existence. Each germinated seed is capable of producing 10 to 15 rosettes of leaves crowded together on the end of the stem which float on the surface much the same as Waterlily leaves. In some cases, these become so dense that they stand upright out of the water. Each rosette produces 15 to 20 seeds, which when mature are about the size of a hickory nut and have four sharp recurved spines. These are slightly bouyant and are transported by tides and currents. They remain viable for several years. The germinating seed sends out a stolon which gives rise to several tough stems, each of which may branch several times and be as long as 15 feet. Thus, the rosettes from a single plant may form a surface cover of up to 10 feet in diameter. In a review of current research, the Scientific Advisory Panel (FIFRA) did not recommend further research studies to determine the No Effect Level and it is presumed that 2,4-D as used in the Aquatic Plant Control Program, State of New York, does not create environmental or health hazards.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1981
- Accession Number
- ADA096420
Entities
People
- E. O. Gangstad