Laserfiche WebLink
• <br />• <br />• <br />• <br />• <br />VL AQUATIC PLANTS: Yes No Bn7Ps <br />Structures: <br />85). Are ditches maintained to prevent aquatic plants from clogging ❑ E1-3 <br />discharge structures? <br />86). Are measures taken to prevent floating vegetation from clogging El <br />culvert riser structures? <br />87). Are physical deterrents such as ribbon barriers, traps, or baffle boxes _ El <br />used to limit the movement of aquatic weeds and debris from canals <br />and ditches to off-site waterways? <br />88). Are fish barriers used to contain grass carp within targeted ditches? _ _ E2 <br />Strategies: <br />89) Are mechanical harvesters used to remove aquatic weeds from 0 E1 <br />ditches or canals? <br />90). Are biological control agents such as flea beetles, hyacinth weevils, ❑ fl E2 <br />or grass carp used to manage aquatic weeds? <br />91). When selecting aquatic herbicides for target species is mode of ■ E3 <br />action, residual toxicity, and potential for offsite movement considered? <br />92). Are appropriate measures taken to control drift and place the desired ❑ u E3 <br />chemical on the weed to be eliminated whether it is submersed, <br />emergent or floating? <br />9 <br />