Excess nitrogen raises nectarine susceptibility to disease and insects

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

Excess nitrogen raises nectarine susceptibility to disease and insects

Authors

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

Authors Affiliations

K.M. Daane is Associate Specialist, Laboratory of Biological Control, UC Berkeley; R.S. Johnson is Extension Specialist, Department of Pomology, UC Davis; T.J. Michailides is Associate Plant Pathologist, Department of Plant Pathology, UC Davis; C.H. Crisosto is Postharvest Physiologist, 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; G.Y. Yokota is Staff Research Associate, Laboratory of Biological Control, UC Berkeley, stationed at the Kearney Agricultural Center; D.P. Morgan is Staff Research Associate, Department of Plant Pathology, UC Davis, 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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