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MCATEE CONSTRUCTION CO. <br />RIVERSIDE PIT - WEED CONTROL PLAN <br />AUGUST 28, 2012 <br />PAGE 3 <br />cates leaving the weed unchecked would result in more damage than control- <br />ling it with best available methods. <br />The plan follows the adaptive management approach: <br />• First, weed species are identified through inventory of the property <br />and by gathering information from other sources. <br />• Second, land management goals and weed management objectives are established <br />for the property. <br />• Third, priorities are assigned to the weed species and weed patches based on <br />the severity of their impacts, while considering the ability to control them. <br />• Fourth, methods are considered for controlling them or otherwise diminishing <br />their impacts and, if necessary, re -order priorities based on likely impacts <br />on target and non - target species. <br />• Fifth, An Integrated Weed Management (IWM) plan is developed based on this <br />information. <br />• Sixth, the IWM plan is implemented in the spring or fall as recommended by the <br />CSU Cooperative Extension local office. <br />• Seventh, the results of management actions are monitored and evaluated in <br />light of weed management objectives for the management area. <br />• Finally, this information is used to modify and improve weed management objec- <br />tives, control priorities, and IWM plans, thereby starting the cycle again. <br />The premise behind a weed management plan is that a structured, logical <br />approach to weed management, based on the best available information, is <br />cheaper and more effective than an ad -hoc approach where one deals with <br />weed problems as they arise. <br />3. NOXIOUS WEEDS SHOULD BE WATCHED FOR AT GRAVEL PIT. <br />a. Bursage, skeltonleaf (Ambrosia tomentosa) i. Spotted knapweed (Acroptilon repens) <br />b. Bursage, wdlyleaf (Ambrosia greyi) j. Leafy spurge (Euphorbia eslua) <br />c. Canada thistle (Cirsium arvense) k. Musk thistle (Carduus nutans) <br />d. Field bindweed (Convolvulus arvensis) I. Perennial pepperweed (Lepedium tatifolium) <br />e. Hoary cress (Cardaria draba) m. Purple loosestrife (Lythrum salicaria) <br />f. Jointed goatgrass (Aegilopa cylindrica) n. Showy milkweed (Aisdepias speciosa) <br />g. Diffuse knapweed (Centaurea diffusa) o. Russian Olive (Elaeagunus angustifolia) <br />h. Russian knapweed (Acroptilon repens) p. Saltcedar (Tamarix sp.) <br />These 16 species have been listed on the Logan County Noxious weed list and <br />should be looked for on the mine. <br />4. NUISANCE WEEDS THAT SHOULD BE ADDRESSED <br />a. Russian thistle common name tumbleweed <br />b. Kosha <br />