Effectiveness of a reduced-risk insecticide based bed bug management program in low-income housing

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Abstract

Bed bug (Cimex lectularius L.) infestations are becoming increasingly common in low-income communities. Once they are introduced, elimination is very difficult. As part of the efforts to develop effective and safe bed bug management programs, we conducted a laboratory study evaluating the efficacy of a reduced-risk insecticide-Alpine aerosol (0.5% dinotefuran). We then conducted a field evaluation of a reduced-risk insecticide based integrated pest management (IPM) program in low-income family apartments with young children. In laboratory evaluations, direct spray and 5 min exposure to dry Alpine aerosol residue caused 100.0±0.0 and 91.7±8.3% mortality to bed bug nymphs, respectively. Direct Alpine aerosol spray killed 91.3±4.3% of the eggs. The IPM program included education, steam, bagging infested linens, placing intercepting devices under furniture legs and corners of rooms, applying Alpine aerosol and Alpine dust (0.25% dinotefuran, 95% diatomaceous earth dust), and regularly scheduled monitoring and re-treatment. Nine apartments ranging from 1-1,428 (median: 29) bed bugs based on visual inspection and Climbup interceptor counts were included. Over a 6-month period, an average 172 g insecticide (Alpine aerosol + Alpine dust) was used in each apartment, a 96% reduction in pesticide usage compared to chemical only treatment reported in a similar environment. The IPM program resulted in an average of 96.8±2.2% reduction in the number of bed bugs. However, elimination of bed bugs was only achieved in three lightly infested apartments (<30 bed bugs at the beginning). Elimination success was closely correlated with the level of bed bug populations. © 2013 by the authors, licensee MDPI, Basel, Switzerland.

Figures

  • Figure 1. Experimental set up for evaluating the efficacy of Alpine aerosol: (a) Direct spray bioassay. (b) Dry residue exposure bioassay.
  • Figure 2. Efficacy of Alpine aerosol against Indy strain bed bugs in direct spray and dry residue exposure bioassays.
  • Figure 3. Bed bug count reduction (Climbup interceptors + visual inspection) in nine apartments after implementation of the bed bug management program.
  • Table 1. Effectiveness of a bed bug management program at low-income housing
  • Figure 4. Total number of bed bugs counted from Climbup interceptors or visual inspections for each apartment during the entire study period.

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CITATION STYLE

APA

Singh, N., Wang, C., & Cooper, R. (2013). Effectiveness of a reduced-risk insecticide based bed bug management program in low-income housing. Insects, 4(4), 731–742. https://doi.org/10.3390/insects4040731

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