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- Title
Nematicidal activity of ethanol solutions on soybean cyst nematode Heterodera glycines.
- Authors
Pedroso, Luma A.; Campos, Vicente P.; Barros, Aline F.; Silva, Julio C.P.; Assis, Gustavo M.; Ribeiro, Clerio R.
- Abstract
Summary: The cyst nematode, Heterodera glycines , is a major pathogen of soybean in tropical regions, which demands novel sustainable management practices. In this work, the use of ethanol against H. glycines was evaluated as both a solution and a fumigant. On second-stage juveniles (J2) of H. glycines , ethanol at low concentration was more effective by direct dipping than by only fumigating the J2. Hatching was significantly reduced by direct dipping in ethanol solutions. Fumigation of H. glycines -infested soil with ethanol reduced infectivity by almost 100% and the number of eggs by about 67% at ethanol concentrations of 48% and 72%, respectively. Only the ethanol at 48% concentration significantly reduced the J2 lipid content, while J2 infectivity and the number of eggs were reduced by dipping at 6% ethanol. The J2 were internally altered by the ethanol solutions. Therefore, ethanol is toxic to H. glycines at low concentrations and affects its pathogenic behaviour rather than simply reducing the lipids.
- Subjects
SOYBEAN cyst nematode; ETHANOL; SOYBEAN
- Publication
Nematology, 2020, Vol 22, Issue 1, p111
- ISSN
1388-5545
- Publication type
Article
- DOI
10.1163/15685411-00003288