Efect of pyroligneous extract of Acacia mearnsii on Tetranychus urticae (Koch, 1836) (Acari, Tetranychidae) and Neoseiulus californicus (McGregor, 1954) (Acari, Phytoseiidae)

This work aimed to determine the efect of decanted pyroligneous extract (DPE) of black Acacia mearnsii on the mites Tetranychus urticae (Koch, 1836) (Acari: Tetranychidae) and Neoseiulus californicus (McGregor, 1954) (Acari: Phytoseiidae). Six diferent concentrations were tested, namely, DPE: water 1:600, 1:300, 1:150, 1:75, 1:38 and 1:19 and a control treatment with distilled water. Five females of T. urticae and N. californicus were transferred to arenas, totaling 50 females per treatment, for a period of eight days. DPE caused high mortality in N. californicus, while in T. urticae, high mortality was observed only at high (1:75, 1:38 and 1:19)