Pesticide Use Trends for City & County of San Francisco Properties Updated 2/15/15

Transcription

1 Pesticide Use Trends for City & County of San Francisco Properties Updated 2/15/15 Contents 1. Cityide pesticide use by pesticide type Cityide pesticide use by haard tier Total pesticides used, by City department Pesticide use by haard tier, by City department Pesticide use by pesticide type, by City department Forthcoming: Cityide pesticide use public health treatments Forthcoming: Cityide pesticide use rodenticide treatments Forthcoming: Pesticide use (detailed) by Recreation & Parks Dept., Notes on pesticide use data Cityide pesticide use by pesticide type C) (Dt-cOO)C-C\ Oo)C-C\JCo) JCJCJC\C\j

2 Cityide pesticide use by haard tier F 2 > U) 1 ( N- C J C) LOCO N- O)Q- C J CO O)C) C) C)QQQO CCC CC C- - - C)a) C)C)CCCC CCC CC CCCC Q, - --C J C\i C\i CJ C J C JCJ C J C\i C.J C\J C J C\J C\i = highest haard, = medium haard, ll = loest haard Total pesticides usedjyçty department, uj U) 1 --DPW --MTA --Puc --REC AND PARK SFA

3 Pesticide use by haard tier, by City department De ailment of Public Works (DL 12 H 1 6 uj ll lll F C/) = highest haard, = medium haard, ll = loest haard Metropolitan Transpoilation Authonty(MLAj F 6 5 _ lll 3 2 U) = highest haard, = medium haard, = loest haard

4 Public Utilities Commission 3 25 Ll 2 l lll > 15 1 Cl) 4EE = highest haard, = medium haard, = loest haard Recreation & Parks Department Q UJQflfl *RJ Sj ll 25 2 F5Q [oo _i = highest haard, 11= medium haard, ll = loest haard

5 San Francisco nternational Airport (SFA) l 15 1 C ) c5 - - ZtttZZtttZttDtt = highest haard, = medium haard, lii = loest haard Notes on Pesticide Use Data mportant factors to consider in analysis The goals of San Francisco s ntegrated Pest Management (1PM) program are to effectively manage pests, emphasie prevention and non-chemical controls, and reduce both the amount and toxicity of pesticides used. Hoever, measuring the success of an 1PM program is a complex task. Before draing conclusions from pesticide use statistics, it is important to consider these factors: Long-term trends are more important than short-term. Pesticide use alays varies somehat from year to year due to eather, pest pressure, special renovation projects, staffing or other factors. A change in pesticide use from the previous year does not necessarily indicate a long-term trend. Exposure potential is as important as toxicity in determining risk. A key aim of a pest management program is the reduction of risk. Risk is primarily determined by to factors: Toxicity (for example, ho much chemical is required to impair a human or other animal) and exposure (for example, ho much of the chemical is likely to actually reach a human or other animal). This means that the formulation and use of the products is all-important. For example, pesticides applied as aerosol sprays have much higher exposure potential and therefore pose a greater risk than pesticides encased in tamperproof bait boxes. Toxicity of products has reduced. The Department has developed its on system for assessing pesticide haards that classifies products as (highest haard), (medium haard) and ll (least haard). Over the years e have reduced the toxicity of products on the City s Reduced Risk Pesticide list. Administrative/budget impacts are important. ncreases in the number of buildings or outdoor acres maintained, decreases in landscaping staff, or underfunding can increase the

6 pressure for herbicide spraying, hich often requires less labor than non-chemical methods. Conversely, maintenance delayed (for example, by budgetary restraints) can lead to more serious problems in the future. neffective pest management also poses risks. West Nile virus or encephalitis transmitted by mosquitoes, allergies or asthma caused by cockroaches, and enteric diseases spread by rats are a fe examples of haards posed by pests themselves. t is important to remember that San Francisco s 1PM Program has dual aims: Reduction of pesticide haards and effective pest management. These data do not represent residential or commercial pest management trends. n California, local public agencies do not have a legal mandate to regulate pesticide use outside of their on properties.