Efficacy of agnique (mmf) monomolecular surface film against immature stages of Anopheles arabiensis patton and Culex spp (diptera: culicidae) in Khartoum, Sudan.
The efficacy of the larvicidal and pupicidal agent (Agnique) MMF was evaluated against larvae of An. arabiensis and Culex (Diptera: Culicidae) under field conditions in Bahary Locality, Khartoum, Sudan. At an applied dosage of 0.25 ml/m2, MMF resulted in 89.4, 79.8 and 88.2% reductions in L3-L4 instars An. arabiensis and 63.5% in Culex larvae (all stages) 24 to 72 hours post-treatment. Pupae were completely eliminated (100%) within 24 hours posttreatment. The earlier instars (L1-L2) of An. arabiensis were more tolerant with a 62.5% reduction at 72 hours post-treatment compared to (L3-L4) instars and pupae. At 7-days post-treatment Agnique gave a 57.5% reduction in L1-L2 and 92.6% in L3-L4 instar larvae of An. arabiensis and 57.3% and 86.4% in Culex larvae and pupae, respectively. We conclude that Agnique can perform effectively against L3-L4 instars and pupae of An. arabiensis for only 1 week, and 3 to 4 days against L1-L2 instars of Culex spp.
School of Biological Science, Universiti Sains Malaysia, Penang, Malaysia.
Al
A
Bashir
A Abu
AA
Hassan
M R Che
MR
Salmah
W A
WA
Rahman
D000818:Animals; D000852:Anopheles / Q000187:drug effects*; D003465:Culex / Q000187:drug effects*; D005233:Fatty Alcohols / Q000494:pharmacology*; D007300:Insect Control / Q000379:methods; D007814:Larva / Q000187:drug effects; D011092:Polyethylene Glycols / Q000494:pharmacology*; D011679:Pupa / Q000187:drug effects; D013397:Sudan; D013501:Surface-Active Agents / Q000494:pharmacology*
D005233:Fatty Alcohols; D013501:Surface-Active Agents; D011092:Polyethylene Glycols; C049713:Arosurf