Open Access
Table 2
Repellent effect of dusts on the two bed bug colonies.
| Percentage repellency (%) | Interpretation | ||
|---|---|---|---|
| Colony 1 (%) | Colony 2 (%) | ||
| Silicon dioxide | −72% | −45% | Not repellent |
| Diatomaceous earth pest management company (DE-pro) | −74% | −58% | Not repellent |
| Diatomaceous earth litter conditioner (DE-pet) | −63% | −33% | Not repellent |
| Diatomaceous earth supermarket insect control (DE-hom) | −98% | −80% | Not repellent |
| Sommières earth | −84% | −36% | Not repellent |
| Green clay | −86% | −73% | Not repellent |
| Talc | −81% | −56% | Not repellent |
| Sodium bicarbonate | −94% | −70% | Not repellent |
| Control (DEET) | 100% | 100% | Repellent |
Percentage repellency was calculated according to the following formula: [(Nc−Nd)/(Nt)] × 100; Nc = total number of bed bugs in a dust-free area; Nd = total number of bed bugs on a dusted area, Nt = total number of bed bugs.
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