b. Mechanical Control. Mechanical devices such as floating booms, underwater cutters
and mechanical harvesters may be used where their justification is economically justifiable.
Mechanical control can also be used in special areas where water use restriction or environmental
considerations select for this method of control.
c. Chemical Control. Herbicides used must be registered for the intended use by the U.S.
Environmental Protection Agency. The products must have full EPA registration, Special Local
Needs registration, Specific Exemption, or Experimental Use Permit, in accordance with the
Federal Insecticide, Fungicide, and Rodenticide Act (PL 92-516), as amended. Spray mixture
additives (adjuvants) are allowed when required by the product label or when the benefits to be
derived exceed the additional cost of the additive. Herbicides shall be used in a manner consistent
with label instructions and precautions and manufacturers Material Safety Data Sheets. Herbicide
selection will include consideration of the potential environmental damage, the label water use
restrictions and consistency with primary water usage. The public shall be notified of any water
use restrictions due to treatment and the dates the restrictions are to be in effect. Herbicide
application shall be controlled at all times to prevent drift onto non-target areas or species of
plants. No application will be made when prevailing winds make such operations hazardous to
non-target areas or plants. The use of aircraft for the application of herbicides will be restricted to
specific areas and weather conditions to prevent any possible hazard from drifting chemical.
d. Biological Control. Biological control agents such as insects, fish, bacterial or plant
pathogens may be used as they are proven to effectively assist in the control of aquatic plants and
have proven their ability to perform this task without undue harm to the ecosystem.
e. Snagging. Removal of physical obstructions such as wind fall timber to gain access to
pockets of target plants that are significant to the overall control effort or otherwise benefit the
program are allowable. Snagging operations specifically for the purpose of assisting APC
operations which require less than one day for a typical work crew to perform in one general area
may be undertaken without prior approval. More extensive snagging work must be agreed upon
by the Corps and the State whether in the Annual Work Plan or supplement thereof prior to
performance to be eligible under the LCA. Extended work periods of snag removal for the
general benefit of navigation are beyond the authority of the APC program.
f. Integrated control.
Z-4. Levels of Control. The level of control will vary with the growth potential and mobility of
the species, the potential impact on navigation, flood control, hydropower, protection of
environmental resources, and the benefit(s) accrued from the proposed control effort. Methods of
control that select for beneficial, native species will be used whenever possible. Treatment of
native species will normally be performed only when unavoidable or as a necessary part of the
control of problem exotic species.
Z-5. Public Notification. The State will inform residents adjacent to control areas and potential
users of the areas of the nature of the control program and any necessary restrictions.
Z-6. Inspection and Acceptance. APC program activities will be conducted in accordance with
the LCA and the Annual Work Plan. All operations are subject to normal inspection by the
Government to ensure that the work is accomplished as planned and the results obtained are
satisfactory. In addition, the State shall comply with inspection requirements as specified in the
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