Insecticide Resistance of Cimex lectularius L. Populations and the Performance of Selected Neonicotinoid-Pyrethroid Mixture Sprays and an Inorganic Dust

TY - JOUR

T1 - Insecticide Resistance of Cimex lectularius L. Populations and the Performance of Selected Neonicotinoid-Pyrethroid Mixture Sprays and an Inorganic Dust

AU - Yu, Jin Jia

AU - Ranabhat, Sabita

AU - Wang, Changlu

N1 - Publisher Copyright: © 2023 by the authors.

PY - 2023/2

Y1 - 2023/2

N2 - Insecticide resistance is one of the factors contributing to the resurgence of the common bed bug, Cimex lectularius L. This study aimed to profile the resistance levels of field-collected C. lectularius populations to two neonicotinoids and one pyrethroid insecticide and the performance of selected insecticide sprays and an inorganic dust. The susceptibility of 13 field-collected C. lectularius populations from the United States to acetamiprid, imidacloprid, and deltamethrin was assessed by topical application using a discriminating dose (10 × LD90 of the respective chemical against a laboratory strain). The RR50 based on KT50 values for acetamiprid and imidacloprid ranged from 1.0–4.7 except for the Linden 2019 population which had RR50 of ≥ 76.9. Seven populations had RR50 values of > 160 for deltamethrin. The performance of three insecticide mixture sprays and an inorganic dust were evaluated against three C. lectularius field populations. The performance ratio of Transport GHP (acetamiprid + bifenthrin), Temprid SC (imidacloprid + β-cyfluthrin), and Tandem (thiamethoxam + λ-cyhalothrin) based on LC90 were 900–2017, 55–129, and 100–196, respectively. Five minute exposure to CimeXa (92.1% amorphous silica) caused > 95% mortality to all populations at 72 h post-treatment.

AB - Insecticide resistance is one of the factors contributing to the resurgence of the common bed bug, Cimex lectularius L. This study aimed to profile the resistance levels of field-collected C. lectularius populations to two neonicotinoids and one pyrethroid insecticide and the performance of selected insecticide sprays and an inorganic dust. The susceptibility of 13 field-collected C. lectularius populations from the United States to acetamiprid, imidacloprid, and deltamethrin was assessed by topical application using a discriminating dose (10 × LD90 of the respective chemical against a laboratory strain). The RR50 based on KT50 values for acetamiprid and imidacloprid ranged from 1.0–4.7 except for the Linden 2019 population which had RR50 of ≥ 76.9. Seven populations had RR50 values of > 160 for deltamethrin. The performance of three insecticide mixture sprays and an inorganic dust were evaluated against three C. lectularius field populations. The performance ratio of Transport GHP (acetamiprid + bifenthrin), Temprid SC (imidacloprid + β-cyfluthrin), and Tandem (thiamethoxam + λ-cyhalothrin) based on LC90 were 900–2017, 55–129, and 100–196, respectively. Five minute exposure to CimeXa (92.1% amorphous silica) caused > 95% mortality to all populations at 72 h post-treatment.

KW - inorganic dust

KW - insecticide resistance

KW - neonicotinoid-pyrethroid mixture

KW - topical assay

UR - http://www.scopus.com/inward/record.url?scp=85148748731&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85148748731&partnerID=8YFLogxK

U2 - 10.3390/insects14020133

DO - 10.3390/insects14020133

M3 - Article

SN - 2075-4450

VL - 14

JO - Insects

JF - Insects

IS - 2

M1 - 133

ER -