Research Article

Evaluation of Halogenated Coumarins for Antimosquito Properties

Table 2

Mortality of Anopheles arabiensis larvae exposed to coumarins and halogenated coumarins at 4 g/mL and their negative (acetone) and positive (Temephos) controls and adult knockdown activity after 2-minute exposure to halogenated coumarins at 1000 g/mL and their negative (acetone) and positive (DEET) controls against repellence assays (adjusted means and standard errors).

Compound codeLarval mortalityKnocked down

CMRN 198.9 ± 3.1a100.0 ± 10.9a
CMRN 297.8 ± 3.1a96.7 ± 10.9ab
CMRN 31.1 ± 3.1b91.1 ± 10.9b
CMRN 498.9 ± 3.1a91.1 ± 10.9b
CMRN 597.8 ± 3.1a97.8 ± 10.9ab
CMRN 61.1 ± 3.1b95.6 ± 10.9ab
CMRN 798.9 ± 3.1a81.1 ± 10.9c
6,7-Methoxy coumarin3.3 ± 3.1b96.7 ± 10.9ab
Scopoletin0.0 ± 3.1b96.7 ± 10.9ab
Acetone (control)0.0 ± 3.1b0.0 ± 10.9d
Temephos100.0 ± 3.1a
DEET0.0 ± 10.9d

Within each column, compounds not sharing a letter differ significantly ().