Fig. 6
From: Metallic copper spray – a new control technique to combat invasive container-inhabiting mosquitoes
Mean numbers of larvae and pupae/vase of Ochlerotatus j. japonicus and Culex pipiens s.l./Cx. torrentium after and without the application of copper-spray under field conditions during a period of 76 days. Left side = Ochlerotatus (Oc), dotted = vases without copper spray (plastic), grey = vases with copper spray; right side = Culex (Cx), dotted = vases without copper spray (plastic); black = vases with copper spray; L1/2 = larval stages 1 & 2, L3/4 = larval stages 3 & 4, P = pupae; bars = standard error, n = 156