Paper · 1988 · Environmental Entomology

Pecan Nursery Stock: Models of Height and Diameter Growth and Impact of Pecan Bud Moth, Gretchena bolliana (Lepidoptera: Tortricidae)

Russell F. Mizell; Frank G. Martin; Peter C. Andersen

5
claims
5
verbatim quotes
2
citations
4
research areas
—
Not open access

Abstract

Logistic equations to describe height and diameter growth of budded, fieldgrown pecan, Carya illinoensis ((Wang.) K. Koch.), nursery stock were developed for several diameter classes of four cultivars—‘Cheyenne,’ ‘Stuart,’ ‘Elliott,’ and ‘Desirable.’ The equations were used to describe impact of feeding on final tree size by larvae of the pecan bud moth, Gretchena bolliana (Slingerland), during May, June, and July. Simulated bud moth damage (pinched terminal buds) occurring in Mayor June significantly reduced both final scion height and diameter of pecan nursery stock. Pecan nursery stock damaged in July was not significantly different (P = 0.05) from the undamaged control in final scion height and diameter. Recommendations to growers based on this study can significantly reduce pesticide use to control pecan bud moth.

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Claims 5

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Logistic equations describe height and diameter growth in pecan nursery stock.

Outcome
height and diameter growthe0
Value
four cultivarse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Logistic equations to describe height and diameter growth of budded, fieldgrown pecan, Carya illinoensis ((Wang.) K. Koch.), nursery stock were developed for several diameter classes of four cultivars—‘Cheyenne,’ ‘Stuart,’ ‘Elliott,’ and ‘Desirable.’”

✓ located verbatim in the source · abstract, characters 0–250 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Simulated bud damage in May significantly reduced final scion height and diameter.

Treatment
Simulated bud moth damage (pinched terminal buds)e0
Outcome
final scion height and diametere0
Direction
reducede0
Qualifier
Maye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Simulated bud moth damage (pinched terminal buds) occurring in Mayor June significantly reduced both final scion height and diameter of pecan nursery stock.”

✓ located verbatim in the source · abstract, characters 419–575 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Simulated bud damage in June significantly reduced final scion height and diameter.

Treatment
Simulated bud moth damage (pinched terminal buds)e0
Outcome
final scion height and diametere0
Direction
reducede0
Qualifier
Junee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Simulated bud moth damage (pinched terminal buds) occurring in Mayor June significantly reduced both final scion height and diameter of pecan nursery stock.”

✓ located verbatim in the source · abstract, characters 419–575 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

July damaged nursery stock did not differ significantly from undamaged stock in final scion height and diameter.

Treatment
damaged in Julye0
Outcome
final scion height and diametere0
Direction
not significantly differente0
Comparator
undamaged controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Pecan nursery stock damaged in July was not significantly different (P = 0.05) from the undamaged control in final scion height and diameter.”

✓ located verbatim in the source · abstract, characters 576–717 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Study-based grower recommendations may significantly reduce pecan bud moth pesticide use.

Interactor
pecan bud mothe0pest
Outcome
reduce pesticide use to control pecan bud mothe0
Direction
reducee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Carya illinoinensis
Carya illinoinensis · TaxonJames St. John · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Recommendations to growers based on this study can significantly reduce pesticide use to control pecan bud moth.”

✓ located verbatim in the source · abstract, characters 718–830 · show in text ↑