Plant Soil Environ., 2016, 62(4):184-188 | DOI: 10.17221/28/2016-PSE

Using of hydrogen cyanide against Ditylenchus dipsaci nematode present on garlicOriginal Paper

M. Zouhar1, O. Douda2, M. Dlouhý3, J. Lišková3, M. Maňasová1, V. Stejskal2
1 Department of Plant Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
2 Division of Crop Protection and Plant Health, Crop Research Institute, Prague, Czech Republic
3 Lučební závody Draslovka a.s., Kolín, Czech Republic

The stem and bulb nematode (Ditylenchus dipsaci) is a serious quarantine pest of vegetables spreading worldwide via seed and planting material. Currently, a hot water technique is used as the pre-seed treatment, which is difficult to execute and the risk of seed damage is high. The objectives of this study were to evaluate the (a) penetration of gaseous hydrogen cyanide (HCN) into garlic tissue; (b) HCN phytotoxicity, and (c) nematicide potential of HCN against D. dipsaci. Penetration of HCN into the core of the garlic clove was approximately 30% of the concentration inside the fumigation chamber after 30 h of exposure. Decreased emergency was observed only in the exposure treatment lasting 16 and more hours. Garlic cloves naturally infested by D. dipsaci were treated with HCN at a concentration of 20 g/m3 for 12, 18 and 24 h in a fumigation chamber, and 99% mortality was achieved in all three exposure times.

Keywords: Allium sativum; pesticide; onion vegetable; crop protection

Published: April 30, 2016  Show citation

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Zouhar M, Douda O, Dlouhý M, Lišková J, Maňasová M, Stejskal V. Using of hydrogen cyanide against Ditylenchus dipsaci nematode present on garlic. Plant Soil Environ. 2016;62(4):184-188. doi: 10.17221/28/2016-PSE.
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