Tetranychus urticae, Koch, 1836

Barbar, Ziad, 2017, Evaluation of three pesticides against phytophagous mites and their impact on phytoseiid predators in an eggplant open-field, Acarologia 57 (3), pp. 529-539: 531

publication ID

http://doi.org/ 10.24349/acarologia/20174170

DOI

http://doi.org/10.5281/zenodo.5475021

persistent identifier

http://treatment.plazi.org/id/03E46E5D-FFB4-FFCB-FCAD-F91FFE1CFD8C

treatment provided by

Marcus

scientific name

Tetranychus urticae
status

 

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).