Excess nitrogen raises nectarine susceptibility to disease and insects

Johnson, R; Dlott, J; Ramirez, H; Morgan, D; Crisosto, C; Daane, K; Michailides, T; Yokota, G

Excess nitrogen raises nectarine susceptibility to disease and insects

Authors

R. Scott Johnson
Jeff W. Dlott
Hugo T. Ramirez
Dave P. Morgan
Carlos H. Crisosto
Kent M. Daane
Themis J. Michailides
Glenn Y. Yokota

Authors Affiliations

R.S. Johnson is Extension Specialist, Department of Pomology, UC Davis; J.W. Dlott is Lecturer and Assistant Specialist, Laboratory of Biological Control, UC Berkeley; H.T. Ramirez is Field Station Specialist, Agricultural Products Department, E.I. du Pont de Nemours & Co; D.P. Morgan is Staff Research Associate, Department of Plant Pathology, UC Davis, stationed at the Kearney Agricultural Center; C.H. Crisosto is Postharvest Physiologist, Department of Pomology, UC Davis; K.M. Daane is Associate Specialist, Laboratory of Biological Control, UC Berkeley; T.J. Michailides is Associate Plant Pathologist, Department of Plant Pathology, UC Davis; G.Y. Yokota is Staff Research Associate, Laboratory of Biological Control, UC Berkeley, stationed at the Kearney Agricultural Center.

Publication Information

Hilgardia 49(4):13-18. DOI:10.3733/ca.v049n04p13. July 1995.

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Abstract

This multidisciplinary study examined the effects of nitrogen fertilization on nectarine yield, fruit quality, brown rot and moth pests. Results indicate that excess nitrogen fertilization did not increase fruit yield or improve fruit quality; however, fruit on overfertilized trees were more susceptible to attack from brown rot, peach twig borer and oriental fruit moth.

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