Abstract
The soybean cyst nematode (SCN), Heterodera glycines Ichinohe, causes significant damage to soybean production annually. Fluopyram is a fungicide commonly used in soybean seed treatments intended to control soilborne fungal pathogens; however, recent studies have also suggested inhibitory effects on SCN. We examined the effects of a fluopyram seed treatment, ILeVO, on SCN reproduction, sudden death syndrome (SDS) development, and yield in a 3-year field study. Overall, fluopyram had a significant effect on yield (P = 0.046) and end-of-season SCN eggs and second-stage juveniles (Pf, P = 0.033) but no significant effect on SCN reproduction (Rf) or SDS disease index (P > 0.05). Post hoc tests indicated that fluopyram increased yield and suppressed SCN quantities. However, Rf was consistently greater than 1 whether or not the seed was treated with fluopyram, indicating that SCN populations were still increasing in the presence of fluopyram. A follow-up greenhouse study indicated that fluopyram reduced SCN relative to nontreated controls, as observed in the field, but only reduced SCN DNA within roots of a susceptible cultivar. These results indicate that fluopyram can suppress SCN quantities relative to nontreated seed but may not ...Continue Reading
References
Jan 13, 1999·Molecular Plant-microbe Interactions : MPMI·X WangE Davis
May 18, 2006·Annual Review of Phytopathology·T L NiblackG L Tylka
Jan 28, 2009·Health Promotion International·John Catford
Mar 12, 2011·Pest Management Science·Hideo IshiiMakoto Kakishima
Sep 22, 2011·Molecular Plant Pathology·Bart A FraaijeMarco W Fraaije
Jan 21, 2012·Pest Management Science·Thomas Veloukas, George S Karaoglanidis
Oct 16, 2012·Science·David E CookAndrew F Bent
Apr 19, 2013·Phytopathology·Helge Sierotzki, Gabriel Scalliet
May 23, 2013·The New Phytologist·Melissa G MitchumEric L Davis
Oct 11, 2014·Phytopathology·Jie WangMartin I Chilvers
Apr 15, 2015·Phytopathology·Jason B NoonThomas J Baum
Jan 9, 2017·G3 : Genes - Genomes - Genetics·Michael GardnerMelissa G Mitchum
Oct 18, 2018·Frontiers in Microbiology·Hyunkyu SangMartin I Chilvers
Jan 19, 2019·Plant Disease·Augustine Q BeemanGregory L Tylka
Jan 24, 2019·Plant Disease·Augustine Q Beeman, Gregory L Tylka
Apr 1, 2017·Plant Disease·Jie WangMartin I Chilvers
Jan 25, 2019·Plant Disease·Yuba R KandelDaren S Mueller
Jul 1, 2016·Plant Disease·Yuba R KandelDaren S Mueller
Feb 9, 2019·BMC Genomics·Rick MasonbrinkThomas J Baum
Jan 1, 2000·Plant Disease·J WangD S Wysong
May 16, 2019·Phytopathology·Mitchell G RothMartin I Chilvers