Effects of Petroleum Spray Oils without and with Copper Fungicides on the Control of Citrus Leaf miner, Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)

Abstract

The efficacies of C23 and C24 petroleum spray oils for the control of citrus leafminer were determined. Both oils significantly suppressed leafminer infestations to similar levels. Combining the C23 oil with either cupric hydroxide or copper oxychloride did not reduce its efficacy against the leafminer. The ability to mix these copper fungicides with petroleum spray oils will allow spray application costs to be reduced.