The aim of this study was to examine the impact of water extracts of Narcissus tazetta bulb on hatching, behaviour and mortality of second-stage juveniles (J2) and reproduction of the soybean cyst nematode (SCN; Heterodera glycines) in laboratory and glasshouse assays. Results demonstrated that N. tazetta bulb extracts did not affect hatching but significantly reduced J2 motility and nematode attraction to the soybean root tip, and resulted in considerable nematode mortality relative to the control. J2 exposure to different concentrations of bulb extracts caused 59-93% reduction in nematode reproduction on soybean roots. Compared with the monoculture control, soybean-N. tazetta intercropping in a pot trial reduced SCN reproduction by 37%. In addition, N. tazetta bulb powder as a soil amendment is effective in controlling SCN reproduction. Thus, the results suggest that N. tazetta bulb extract or derived active compounds may be considered as potential natural nematicides against SCN.
Assessing the effects of water extract of Narcissus tazetta bulb on hatching, mortality, chemotaxis and reproduction of the soybean cyst nematode, Heterodera glycines
Yanfeng Hu,Jia You,Chunjie Li,Fengjuan Pan,Congli Wang
Published 2019 in Nematology
ABSTRACT
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- Publication year
2019
- Venue
Nematology
- Publication date
2019-12-06
- Fields of study
Agricultural and Food Sciences, Biology, Environmental Science
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