Fig 1.
(A) Map of the United States of America highlighting Illinois, (B) Map of Illinois highlighting Cook County, (C) Study sites within Cook County. All sample locations have an S-methoprene treatment history. Unfilled circles indicate populations from sites with Ls treatment history, where black filled circles indicate populations without any Ls treatment history. Map created by Austin Robak using Esri basemap data © OpenStreetMap contributors, Esri, under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
Fig 2.
Comparison of resistance categories of S-methoprene with Ls resistance ratios in 32 field-collected Cx. pipiens populations.
(A) S-methoprene resistance categories vs. LC50 Ls resistance ratios (log10 scale) and (b) S-methoprene resistance categories vs. LC90 values (log10 scale) (B). White circles indicate populations from sites with Ls treatment history, where black circles indicate populations without Ls treatment history.
Table 1.
Summary of dose response data, resistance ratios, and statistical results for field-collected larval Cx. pipiens exposed to Ls.
Table 2.
Final logistical regression chosen for likelihood of Ls resistance associated with Ls use.
Fig 3.
The probability of development of Ls resistance at.
(A) RR50 ≥ 5 and (B) RR90 ≥ 5 in Cx. pipiens populations based on the average number of Ls treatments to a catch basin within the operational zone/sample location.