<abstract xmlns="http://www.w3.org/1999/xhtml">

<italic>Tetranychus turkestani</italic> Ugarov and Nikolski is one of the main agricultural pests of southwestern Iran and some other tropical regions. In the present study, fumigant activity of three essential oils extracted from <italic>Rosmarinus officinalis</italic> L., <italic>Mentha longifolia</italic> L. and <italic>Eucalyptus globulus</italic> Labill., and contact toxicity of two biopesticides (Tondexir and Palizin) on <italic>T. turkestani</italic> mite females were investigated and compared with that of spiromesifen, a chemical acaricide. Also, sublethal effects of the tested compounds at 50% lethal concentration (LC50) were estimated on the biological parameters of <italic>T. turkestani</italic>. The LC50 values for <italic>E</italic>. <italic>globulus</italic>, <italic>R</italic>. <italic>officinalis</italic> and <italic>M</italic>. <italic>longifolia</italic> essential oils were 12.50, 11.52 and 4.00 μl/l air and for spiromesifen, Tondexir and Palizin were 10.98, 327.34 and 858.13 ppm, respectively. All tested compounds significantly reduced adult female longevity, equally to the chemical acaricide spiromesifen. Fecundity also decreased in all treatments and this reduction was even higher for plant essential oils than the other compounds. Palizin, <italic>E</italic>. <italic>globulus</italic> and <italic>M</italic>. <italic>longifolia</italic> significantly reduced the hatchability of <italic>T. turkestani</italic> eggs similarly to spiromesifen. According to the results, the tested plant compounds are effective against <italic>T. turkestani</italic> and may be applied as suitable alternatives to synthetic pesticides against this crop pest.
</abstract>

Tetranychus turkestani Ugarov and Nikolski is one of the main agricultural pests of southwestern Iran and some other tropical regions. In the present study, fumigant activity of three essential oils extracted from Rosmarinus officinalis L., Mentha longifolia L. and Eucalyptus globulus Labill., and contact toxicity of two biopesticides (Tondexir and Palizin) on T. turkestani mite females were investigated and compared with that of spiromesifen, a chemical acaricide. Also, sublethal effects of the tested compounds at 50% lethal concentration (LC50) were estimated on the biological parameters of T. turkestani. The LC50 values for E. globulus, R. officinalis and M. longifolia essential oils were 12.50, 11.52 and 4.00 μl/l air and for spiromesifen, Tondexir and Palizin were 10.98, 327.34 and 858.13 ppm, respectively. All tested compounds significantly reduced adult female longevity, equally to the chemical acaricide spiromesifen. Fecundity also decreased in all treatments and this reduction was even higher for plant essential oils than the other compounds. Palizin, E. globulus and M. longifolia significantly reduced the hatchability of T. turkestani eggs similarly to spiromesifen. According to the results, the tested plant compounds are effective against T. turkestani and may be applied as suitable alternatives to synthetic pesticides against this crop pest.

Lethal and sublethal effects of several plant compounds compared to spiromesifen against <italic>Tetranychus turkestani</italic>

Department of Plant Protection, Faculty of Agriculture

Hellenic Plant Protection Journal

This work is licensed under the Creative Commons Attribution 4.0 International License.

Lethal and sublethal effects of several plant compounds compared to spiromesifen against 

Tetranychus turkestani Ugarov and Nikolski is one of the main agricultural pests of southwestern Iran and some other tropical regions. In the present study,...

Lethal and sublethal effects of several plant compounds compared to spiromesifen against Tetranychus turkestani

Published Online: Jul 20, 2021

Page range: 89 - 98

Received: Sep 04, 2020

Accepted: Jun 23, 2021

DOI: https://doi.org/10.2478/hppj-2021-0009

Keywords
biological parameters, biopesticide, Palizin, spider mite, Tondexir

© 2020 F. Sohrabi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Lethal and sublethal effects of several plant compounds compared to spiromesifen against Tetranychus turkestani

Published Online: Jul 20, 2021

Page range: 89 - 98

Received: Sep 04, 2020

Accepted: Jun 23, 2021

DOI: https://doi.org/10.2478/hppj-2021-0009

Keywordsbiological parameters, biopesticide, Palizin, spider mite, Tondexir

© 2020 F. Sohrabi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
biological parameters, biopesticide, Palizin, spider mite, Tondexir