Environmental Entomology (1988) 17, 13-17

Russell F. Mizell III, Frank G. Martin and Peter C. Andersen (1988)
Pecan nursery stock: models of height and diameter growth and impact of pecan bud moth, Gretchena bolliana (Lepidoptera: Tortricidae)
Environmental Entomology 17 (1), 13-17
Abstract: Logistic equations to describe height and diameter growth of budded, field-grown 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 May or 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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Russell F. Mizell III

Research topic(s) for pests/diseases/weeds:
damage/losses/economics
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Gretchena bolliana	Pecan/hickory (Carya)	U.S.A. (SE)