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<p>Nematicidal activity at different concentrations of fosthiazate against soybean cyst nematode (<italic>Heterodera glycines</italic>) was evaluated in this paper. The mortality rates of second-stage juvenile (J2) reached 13.43, 48.39, 66.82, 79.77, and 86.35% at 12 hr after exposure to 2.18, 3.44, 5.45, 8.61, and 13.62 mg/l of fosthiazate, respectively, whereas cumulative hatching rates totaled 58.24, 53.88, 42.54, 24.11, and 13.69% at 18 days after exposure to concentrations. J2s dead by exposure to fosthiazate exhibited shrunk and twisted body shape, whose length of nematode body, stylet, and esophageal glands to head were significantly shorter than that of the control (<italic>p</italic> &lt; 0.05). A pot test was also performed to count the numbers of cysts on soybean roots, showing reduction of 43.64–97.94% due to application of fosthiazate at 5.45, 13.62, 34.04, and 85.10 mg/l concentrations. This study demonstrated that fosthiazate exhibits increasing of J2 mortality, and reducing egg hatching and reproduction rates, which providing evidence to support the use fosthiazate in further studies against <italic>H. glycines</italic>.</p>
</abstract>

Nematicidal activity at different concentrations of fosthiazate against soybean cyst nematode (Heterodera glycines) was evaluated in this paper. The mortality rates of second-stage juvenile (J2) reached 13.43, 48.39, 66.82, 79.77, and 86.35% at 12 hr after exposure to 2.18, 3.44, 5.45, 8.61, and 13.62 mg/l of fosthiazate, respectively, whereas cumulative hatching rates totaled 58.24, 53.88, 42.54, 24.11, and 13.69% at 18 days after exposure to concentrations. J2s dead by exposure to fosthiazate exhibited shrunk and twisted body shape, whose length of nematode body, stylet, and esophageal glands to head were significantly shorter than that of the control (p < 0.05). A pot test was also performed to count the numbers of cysts on soybean roots, showing reduction of 43.64–97.94% due to application of fosthiazate at 5.45, 13.62, 34.04, and 85.10 mg/l concentrations. This study demonstrated that fosthiazate exhibits increasing of J2 mortality, and reducing egg hatching and reproduction rates, which providing evidence to support the use fosthiazate in further studies against H. glycines.

Nematicidal Activity of Fosthiazate Against Soybean Cyst Nematode <italic>Heterodera glycines</italic>


Journal of Nematology

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Nematicidal Activity of Fosthiazate Against Soybean Cyst Nematode 


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Nematicidal Activity of Fosthiazate Against Soybean Cyst Nematode

Nematicidal activity at different concentrations of fosthiazate against soybean cyst nematode (Heterodera glycines) was evaluated in this paper. The mortality...

Nematicidal Activity of Fosthiazate Against Soybean Cyst Nematode Heterodera glycines

Article Category: Arts & Humanities

Published Online: Apr 23, 2019

Page range: 1 - 9

Received: Oct 22, 2018

DOI: https://doi.org/10.21307/jofnem-2019-021

© 2019 Hai Yan Wu et al., published by Sciendo

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