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- Establishin¢ iniurv levels: An injury or tolerance level is used to dete�nine if the problem is serious <br />enough to justify some kiud of treatment. A vade-off needs to be made between the amount of damage <br />done versus the cost of control. An injury level should be dctermined for each potential pest, and that <br />level should be compared wi[h field samples or observations hefore any action is taken. <br />- Record-keepins: Records are kept of what is seen, decisions made, actions taken, and results. <br />- Selectine least-toxic treatments: TreaYment strategies are chosen that are the least disruptive of natural <br />controls, least hazardous to human or non-�zrget organisms health, least damaging to the general <br />environment, the most likely to produce a permanen[ reduction in the environment's ability to support <br />that pest, and the most cost-effective in the short and long term. The most energy and cost-eYfectrve pest <br />management strategy in the long term is to redesign the system to eliminate the life support systems <br />required by the pests. <br />- Evaluation and aciustment: luspection is done after the treatment action has been taken to determine if <br />the treatment was worthwhile and how the whole process can he improved to achieve the overall <br />objectives of the program. <br />Pesticides are used only where other techniques are not adequate or possible to use. Prevention is a major <br />component of IPM and can be best addressed at the program design stage. <br />Scouting can regularly be done by work and road crews for insect and wee.d infestations so that early action can <br />be taken. Prc:npt action against a pest before it becomes established means thai less toxic methods of control, <br />such as hand weeding, can be used mstead of an herbicide or pesticide. <br />BMPs FOR THE USE OF PESTICIDES <br />1. A pesticide-use plan should be Formulated and should include at a minimmn: a list of selected pesticides <br />and their specific uses; brands, formulations, application methods and quantities to be used; equipment <br />use and maintenance procedures; safety, storage, and �isposal methods; monitoring and record keeping <br />procedurzs aed public notice procedures. All procedures shall conform to the reyuirements of Ch. 17.21 <br />RCW and Ch. 16-228 WAC (see R.8 in Section 4-3). <br />2. Any control used should be done zt the life stage when the pest is most vulnerable. Any method used <br />should be site-specific and not used wholesale over a wide area. Once an application is made, its <br />effectiveness should be evaluated so that future treatment can be more finely tuned. <br />3. The pesticide chosen shall be the least toxic pesticide available that i�: capable oi` reducing th� infes4ation <br />to acceptable levels. The pesticide should readily degrade in ttie environnent and/or have prope-ties that <br />strongly bind it to soil particles. <br />4. Documented evidence shall be provided sh�wing the inapplicability of available alternatives. <br />5. An annual evaluation procedure should be developed and include a revieH� of the et%ctiveness of <br />treatments, buffers and sensitive areas, public concerns and complaints, and recent toxicological <br />information on pesticides used or proposed for use. <br />6. Pesticides shall not 6e sprayed within 100 feet of open waters including watlands, ponds, streams, <br />sloughs and .,ny drainage ditch or channel that leads to open water. <br />7. If required or recommended by the City, public posting of the area [o te sF rayed shall be done prior to <br />the application. All sensitive areas including wel(s, creeks, and wetlands shall be flagged prior to <br />spraying and a buffer strip of approxima[ely IOG feet shall be used. <br />8. Spray application shall not occur during weather conditions indicated in the applicable W'ACs. <br />9. Spreadedstickers used shall be the least toxic and/or mnst targ�t specific a� ailable. <br />4-2-15 <br />