Mortality of Tetranychus urticae caused by fenbutatin oxide The ratios of reduction (mortality ratios) of T. urticae were significantly different between sampling dates (F = 2.39; df = 19; P = 0.006) (Figure 2). One day after the first application, fenbutatin oxide produced 42.6 % reduction of T. urticae. This ratio increased gradually and reached 79.2 % after 21 days. When the second application was carried out, mortalities were from 92.5 % to 96.0 % during 21 days. The ratio slightly increased to 99.3 % at 21 days after the third application and then, a gradual decrease was observed and reached to 57.0 % at the end of the experiment (Figure 2).

Published as part of Barbar, Ziad, 2017, Evaluation of three pesticides against phytophagous mites and their impact on phytoseiid predators in an eggplant open-field, pp. 529-539 in Acarologia 57 (3) on page 531, DOI: 10.24349/acarologia/20174170, http://zenodo.org/record/5757475