Abstract
Abstract 1 The feeding preference of vine weevil, Otiorhynchus sulcatus (Fabricius), adults for foliage from 21 commercial cultivars of strawberries is investigated using binary choice tests with leaf disks, using ‘Honeoye’ as a standard against which all other cultivars are compared. ‘Delmarvel’, ‘Idea’, ‘Lester’, ‘Primetime’ and ‘Seneca’ are not preferred. 2 Variation in leaf nitrogen content is correlated with feeding preference, but does not explain all the variation, because outliers exist for both preferred and nonpreferred cultivars. 3 Removal of leaf hairs with adhesive tape permits their role in deterrence to be evaluated. Eight of the 21 cultivars have deterrent leaf hairs. Paradoxically, some highly preferred cultivars (e.g. ‘Latestar’ and ‘Tristar’) have deterrent leaf hairs, and four of the five nonpreferred cultivars lack significantly deterrent leaf hairs. 4 The 21 tested cultivars do not differ in their suitability for vine weevil larval development. 5 Differences in cultivar susceptibility to vine weevil in the field may involve interactions between the palatability and nutritional value of foliage, which influence fecundity and egg placement, and the tolerance of strawberry plants to larval feeding, determined by root biomass. The nonpreference traits found in the foliage of commercial cultivars of strawberry are present by chance. Accordingly, further selective breeding to enhance strawberry varietal tolerance to vine weevils may be possible.
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Claims 9
Claim · model-written summary
Delmarvel, Idea, Lester, Primetime and Seneca strawberry cultivars are not preferred by vine weevil adults.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Material
- ‘Delmarvel’, ‘Idea’, ‘Lester’, ‘Primetime’ and ‘Seneca’e1
- Interactor
- Otiorhynchus sulcatus
Otiorhynchus sulcatuse2pest - Outcome
- not preferrede1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e1“‘Delmarvel’, ‘Idea’, ‘Lester’, ‘Primetime’ and ‘Seneca’ are not preferred”
e2“vine weevil, Otiorhynchus sulcatus”
Claim · model-written summary
Leaf nitrogen content is correlated with feeding preference of vine weevil but does not explain all the variation.
- Taxon
- strawberryFragaria ×ananassat0
- Compound
- nitrogene1
- Outcome
- feeding preferencee1
- Qualifier
- does not explain all the variatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e1“Variation in leaf nitrogen content is correlated with feeding preference, but does not explain all the variation”
Claim · model-written summary
Eight of the 21 strawberry cultivars have deterrent leaf hairs.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- deterrent leaf hairse3
- Value
- Eight of the 21e3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e3“Eight of the 21 cultivars have deterrent leaf hairs”
Claim · model-written summary
Some highly preferred cultivars, Latestar and Tristar, have deterrent leaf hairs.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- ‘Latestar’ and ‘Tristar’e4
- Outcome
- deterrent leaf hairse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e4“Paradoxically, some highly preferred cultivars (e.g. ‘Latestar’ and ‘Tristar’) have deterrent leaf hairs”
Claim · model-written summary
Four of the five nonpreferred cultivars lack significantly deterrent leaf hairs.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- deterrent leaf hairse5
- Value
- four of the fivee5
- Qualifier
- lack significantlye5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e5“four of the five nonpreferred cultivars lack significantly deterrent leaf hairs”
Claim · model-written summary
The 21 tested strawberry cultivars do not differ in their suitability for vine weevil larval development.
- Taxon
- strawberryFragaria ×ananassat0
- Interactor
- vine weevile6pest
- Outcome
- suitability for vine weevil larval developmente6
- Direction
- do not differe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e6“The 21 tested cultivars do not differ in their suitability for vine weevil larval development”
Claim · model-written summary
Differences in cultivar susceptibility to vine weevil in the field may involve interactions between palatability and nutritional value of foliage and larval tolerance set by root biomass.
- Taxon
- strawberryFragaria ×ananassat0
- Interactor
- vine weevile7pest
- Outcome
- cultivar susceptibility to vine weevil in the fielde7
- Qualifier
- interactions between the palatability and nutritional value of foliagee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e7“Differences in cultivar susceptibility to vine weevil in the field may involve interactions between the palatability and nutritional value of foliage, which influence fecundity and egg placement, and the tolerance of strawberry plants to larval feeding, determined by root biomass”
Claim · model-written summary
The nonpreference traits in the foliage of commercial strawberry cultivars are present by chance.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- nonpreference traitse1
- Qualifier
- present by chancee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Susceptibility of strawberry cultivars to the vine weevil Otiorhynchus sulcatus”
e1“The nonpreference traits found in the foliage of commercial cultivars of strawberry are present by chance”
Claim · model-written summary
Further selective breeding to enhance strawberry varietal tolerance to vine weevils may be possible.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- varietal tolerance to vine weevilse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“further selective breeding to enhance strawberry varietal tolerance to vine weevils may be possible”