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ISHS Acta Horticulturae 555: II International Symposium on Edible Alliaceae

EPIDEMIOLOGY AND CONTROL (BASED ON THRESHOLDS) OF LEAF DISEASES (Peronospora destructor, Botrytis spp.) AND THRIPS (Thrips tabaci) IN ONION

Authors:   H.J. Krauthausen, E. Richter, S. Hagner, M. Hommes
DOI:   10.17660/ActaHortic.2001.555.18
Abstract:
During a 3 year testing program a threshold strategy for the control of onion (Allium cepa L.) leaf diseases and pests was compared with growers` spraying schemes. By employing the threshold strategy more than 50% of the pesticides could be saved without any concession to yield or quality.

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