9701 EVERGREEN WAY 2025-07-28 - Laserfiche WebLink

- Establishing injury levels: An injury or tolerance level is used to determine if the problem is serious enough to justify some kind of treatment. A trade-off needs to be made between the amount of damage done versus the cost of control. An injury level should be determined for each potential pest,and that level should be compared with field samples or observations before any action is taken. - Record-keeping: Records are kept of what is seen, decisions made,actions taken, and results. - Selecting least-toxic treatments: Treatment strategies are chosen that are the least disruptive of natural controls, least hazardous to human or non-target organisms health, least damaging to the general environment,the most likely to produce a permanent reduction in the environment's ability to support that pest,and the most cost-effective in the short and long term. The most energy and cost-effective pest management strategy in the long term is to redesign the system to eliminate the life support systems required by the pests. - Evaluation and adjustment: Inspection is done after the treatment action has been taken to determine if the treatment was worthwhile and how the whole process can be improved to achieve the overall objectives of the program. Pesticides are used only where other techniques are not adequate or possible to use. Prevention is a major component of IPM and can be best addressed at the program design stage. Scouting can regularly be done by work and road crews for insect and weed infestations so that early action can be taken. Prompt action against a pest before it becomes established means that less toxic methods of control, such as hand weeding, can be used instead of an herbicide or pesticide. BMPs FOR THE USE OF PESTICIDES 1. A pesticide-use plan should be formulated and should include at a minimum: a list of selected pesticides and their specific uses;brands,formulations,application methods and quantities to be used; equipment use and maintenance procedures; safety,storage,and disposal methods; monitoring and record keeping procedures and public notice procedures. All procedures shall conform to the requirements of Ch. 17.21 RCW and Ch. 16-228 WAC(see R.8 in Section 4-3). 2. Any control used should be done at the life stage when the pest is most vulnerable. Any method used should be site-specific and not used wholesale over a wide area. Once an application is made, its effectiveness should be evaluated so that future treatment can be more finely tuned. 3. The pesticide chosen shall be the least toxic pesticide available that is capable of reducing the infestation to acceptable levels. The pesticide should readily degrade in the environment and/or have properties that strongly bind it to soil particles. 4. Documented evidence shall be provided showing the inapplicability of available alternatives. 5. An annual evaluation procedure should be developed and include a review of the effectiveness of treatments, buffers and sensitive areas,public concerns and complaints,and recent toxicological information on pesticides used or proposed for use. 6. Pesticides shall not be sprayed within 100 feet of open waters including wetlands,ponds, streams, sloughs and any drainage ditch or channel that leads to open water. 7. If required or recommended by the City,public posting of the area to be sprayed shall be done prior to the application. All sensitive areas including wells,creeks,and wetlands shall be flagged prior to spraying and a buffer strip of approximately 100 feet shall be used. 8. Spray application shall not occur during weather conditions indicated in the applicable WACs. 9. Spreader/stickers used shall be the least toxic and/or most target specific available. • 4-2-15