Residual effectiveness of lambda-cyhalothrin harbourage sprays against foliage-resting mosquitoes in north Queensland.
The residual efficacy of lambda-cyhalothrin sprayed on foliage was evaluated against various mosquito species in sections of forest in Cairns, Queensland, Australia Weekly sweep-net collections in treated and untreated areas before and after spraying showed 87-100% reductions in mosquito numbers for the first 9 wk postspray. After that period, reductions fluctuated but remained >71% up to 14 wk posttreatment. Mosquito mortality ranged from 96 to 100% in contact bioassays of treated leaves during the 14 wk study. Our results demonstrate that spraying harborage vegetation with lambda-cyhalothrin is an extremely effective strategy for the control of sylvan and peridomestic mosquito species in tropical north Queensland.
Odwell M
OM
Muzari
Rebecca
R
Adamczyk
Joseph
J
Davis
Scott
S
Ritchie
Gregor
G
Devine
D000818:Animals; D009033:Culicidae; D017753:Ecosystem; D007306:Insecticides; D009032:Mosquito Control; D009570:Nitriles; D010573:Pesticide Residues; D011722:Pyrethrins; D011793:Queensland
D007306:Insecticides; D009570:Nitriles; D010573:Pesticide Residues; D011722:Pyrethrins; C037304:cyhalothrin