Abstract
Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat that can become important in reduced tillage production systems. The relative abundance of Hessian fly was examined on spring wheat cultivars grown under conventional tillage (CT) and no-tillage (NT) practices in northern Idaho from 2000 to 2002. Six cultivars were tested: Hessian fly-susceptible 'Penawawa' and'Westbred 936' and -resistant (H3 gene) 'Wawawai', 'Jefferson', 'Hank', and 'Westbred 926.' Hessian fly egg densities were not significantly different among treatments, indicating ovipositing females showed no preference for tillage treatment or cultivar. Mean number of Hessian fly puparia per plant was significantly greater in CT plots during the last sampling in 2000; however, in 2001, NT plots had significantly more puparia than CT plots. Tillage had no significant effect on mean Hessian fly per plant in 2002. Significantly more puparia were observed on susceptible compared with resistant cultivars in 2000 and 2002. In 2001, susceptible Penawawa had significantly more puparia than resistant cultivars, whereas puparial densities on susceptible Westbred 936 were higher than on resistant cultivars other than Wawawai. Yield and 100-seed weight were not affected by tillage treatment. Significant variation in yield among cultivars was observed only in 2000, when fly-resistant Hank yielded the highest. Hank had the highest 100-seed weight in 2000 and 2001, whereas Penawawa and Jefferson had the lowest 100-seed weights each year. Reduced tillage had no consistent effect on spring wheat yield or abundance of Hessian fly under the conditions of our trials, which evaluated small plots.
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Claims 12
Claim · model-written summary
Hessian fly egg densities did not differ significantly among tillage and cultivar treatments
- Taxon
- spring wheat
Triticum aestivume0 - Interactor
- Hessian fly
Mayetiola destructore0pest - Outcome
- Hessian fly egg densitiese1
- Direction
- not significantly differente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e1“Hessian fly egg densities were not significantly different among treatments”
Claim · model-written summary
Conventional tillage plots had significantly more Hessian fly puparia per plant than no-tillage plots in 2000
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- conventional tillage (CT)e2
- Interactor
- Hessian flyMayetiola destructore0pest
- Outcome
- Hessian fly puparia per plante3
- Direction
- significantly greatere3
- Setting
- northern Idahoe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e2“grown under conventional tillage (CT) and no-tillage (NT) practices in northern Idaho from 2000 to 2002”
e3“Mean number of Hessian fly puparia per plant was significantly greater in CT plots during the last sampling in 2000”
Claim · model-written summary
No-tillage plots had significantly more Hessian fly puparia than conventional tillage plots in 2001
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- no-tillage (NT)e2
- Interactor
- Hessian flyMayetiola destructore0pest
- Outcome
- pupariae4
- Direction
- significantly moree4
- Comparator
- CT plotse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e2“grown under conventional tillage (CT) and no-tillage (NT) practices in northern Idaho from 2000 to 2002”
e4“in 2001, NT plots had significantly more puparia than CT plots”
Claim · model-written summary
Tillage had no significant effect on mean Hessian fly per plant in 2002
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- Tillagee5
- Interactor
- Hessian flyMayetiola destructore0pest
- Outcome
- mean Hessian fly per plante5
- Direction
- no significant effecte5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e5“Tillage had no significant effect on mean Hessian fly per plant in 2002”
Claim · model-written summary
Susceptible cultivars had significantly more Hessian fly puparia than resistant cultivars in 2000 and 2002
- Taxon
- spring wheatTriticum aestivume0
- Interactor
- Hessian flyMayetiola destructore0pest
- Outcome
- pupariae6
- Direction
- Significantly moree6
- Comparator
- resistant cultivarse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e6“Significantly more puparia were observed on susceptible compared with resistant cultivars in 2000 and 2002”
Claim · model-written summary
Susceptible Penawawa had significantly more Hessian fly puparia than resistant cultivars in 2001
- Taxon
- spring wheatTriticum aestivume0
- Material
- Penawawae7
- Interactor
- Hessian flyMayetiola destructore0pest
- Outcome
- pupariae7
- Direction
- significantly moree7
- Comparator
- resistant cultivarse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e7“In 2001, susceptible Penawawa had significantly more puparia than resistant cultivars”
Claim · model-written summary
Puparial densities on susceptible Westbred 936 were higher than on resistant cultivars other than Wawawai
- Taxon
- spring wheatTriticum aestivume0
- Material
- Westbred 936e1
- Interactor
- Hessian flyMayetiola destructore0pest
- Outcome
- puparial densitiese1
- Direction
- highere1
- Comparator
- resistant cultivars other than Wawawaie1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e1“puparial densities on susceptible Westbred 936 were higher than on resistant cultivars other than Wawawai”
Claim · model-written summary
Tillage treatment did not affect yield or 100-seed weight of spring wheat
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- tillage treatmente1
- Outcome
- Yield and 100-seed weighte1
- Direction
- not affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e1“Yield and 100-seed weight were not affected by tillage treatment”
Claim · model-written summary
Cultivar Hank yielded the highest in 2000, with significant variation among cultivars
- Taxon
- spring wheatTriticum aestivume0
- Material
- Hanke1
- Outcome
- yielde1
- Direction
- higheste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e1“Significant variation in yield among cultivars was observed only in 2000, when fly-resistant Hank yielded the highest”
Claim · model-written summary
Cultivar Hank had the highest 100-seed weight in 2000 and 2001
- Taxon
- spring wheatTriticum aestivume0
- Material
- Hanke1
- Outcome
- 100-seed weighte1
- Direction
- higheste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e1“Hank had the highest 100-seed weight in 2000 and 2001”
Claim · model-written summary
Penawawa and Jefferson had the lowest 100-seed weights in each year
- Taxon
- spring wheatTriticum aestivume0
- Material
- Penawawa and Jeffersone1
- Outcome
- 100-seed weightse1
- Direction
- loweste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e1“whereas Penawawa and Jefferson had the lowest 100-seed weights each year”
Claim · model-written summary
Reduced tillage had no consistent effect on spring wheat yield or Hessian fly abundance
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- Reduced tillagee1
- Interactor
- Hessian flyMayetiola destructore0pest
- Outcome
- spring wheat yield or abundance of Hessian flye1
- Direction
- no consistent effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat”
e1“Reduced tillage had no consistent effect on spring wheat yield or abundance of Hessian fly under the conditions of our trials”
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