New York Codes, Rules and Regulations › Title 6 - DEPARTMENT OF ENVIRONMENTAL CONSERVATION › Chapter IV - QUALITY SERVICES › Subchapter A - PESTICIDE CONTROL › Part 328 - Use Of Chemicals For The Control Or Extermination Of Undesirable Fish › Section 328.6 - Authorized chemicals and specifications

Current through Register Vol. 46, No. 28, July 10, 2024
Rotenote for extermination of undesirable fish. (Removal of
					 entire fish populations.)
(a) Purpose.
				  Authorized for extermination of entire fish complexes where reasonable as a basis
				  for sound fisheries management. Not authorized for partial treatments or
				  elimination of a single species from the population.
(b) Periods of treatment. In waters with
				  outlets, or possible outlets at high water, treatment will be authorized from
				  July to mid-September. Waters without outlets may be treated up to October 15.
				  Later treatment will require special authorization.
(c) Dosage. Not to exceed 0.5 to 1.0 ppm
				  rotenone and vehicle of five percent by weight emulsifiable rotenone, or two and
				  one-half percent synergized emulsifiable rotenone. The high dosage should be
				  considered only for waters which are weedy, turbid or of high alkalinity.
Note:The issuing agent should check the volume and dosage and
					 for this purpose insist that an adequately sized scale map complete with
					 soundings be provided by the applicant.
(d) Treatment area. Entire lakes and ponds
				  shall be treated, including any tributary system. Permits will not be issued for
				  streams or parts of streams unless within such tributary system.
(e) Method of application. Diluted solution
				  shall be sprayed for effective coverage and to avoid uneven distribution. Shallow
				  waters and ponds up to five acres and tributaries should be treated by hand
				  pumps. Larger waters and those over 15 feet in depth should be treated with
				  pressure or centrifugal pumps. The suction side may be used to draw and mix water
				  and chemical before they are sprayed on the surface. A proportionate amount
				  should be distributed to the deeper water by dragging a weighted discharge hose.
				  Tributaries are to be treated for several days after the pond
				  treatment.
(f) Posting of treated
				  area. If the applicant is unable or does not desire to control access and use of
				  the area, he shall post it to indicate the treatment given.
(g) Water-use restrictions. While rotenone at
				  the recommended concentration is not harmful to man or animals after
				  distribution, less is known of the effect of vehicle and additives. Due to the
				  possibility of high localized and surface concentrations:
(1) Watering animals shall be restricted for
				  two weeks following treatment.
(2)
				  Swimming shall be restricted until the water has become non-toxic to fish or for
				  not less than two weeks if the toxicity is dissipated sooner.
(3) Use as a private water supply shall be
				  restricted for the same time and same reasons as swimming. Treatment of a public
				  water supply must be authorized by the supply agency. In this case, restriction
				  shall be left to the supply agency.