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Lettuce: Lactuca sativa 'Winterhaven'
Powdery mildew: Golovinomyces cichoracearum

Evaluation of fungicides for management of powdery mildew on lettuce, 2007

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First Author: Michael Matheron, The University of Arizona.

Additional Authors: M. Porchas

Section: Citrus, Tropical, Vegetable, and Misc. Crops


Geographical location: Arizona, United States

Products Tested: Cabrio; Previcur Flex; Silwet; V-10118; Quadris; Switch; Forum; Procure; Penetrator Plus; Endorse; Evito; Maneb; Reason; Endura; Aliette; Presidio; Quintec; Microthiol Disperss; Ridomil Gold; Actinovate; Rovral

Active chemical(s): Pyraclostrobin; Propamocarb hydrochloride; Surfactant; Unknown; Azoxystrobin; Cyprodinil + fludioxonil; Dimethomorph; Triflumizole; Several ingredients; Polyoxin D zinc salt; Fluoxastrobin; Maneb; Fenamidone; Boscalid; Fosetyl-aluminum; Fluopicolide; Quinoxyfen; Sulfur; Mefenoxam; Streptomyces lydicus; Iprodione

Biological Control:

Biorational Product:

Manufacturer(s): BASF Corporation; Bayer CropScience; Helena Chemical Company; Valent BioScience Corporation; Syngenta; Syngenta; BASF Corporation; Crompton Corporation; Helena Chemical Company; Arysta; Arysta; Cerexagri, Inc; Bayer CropScience; BASF Corporation; Bayer CropScience; Valent BioScience Corporation; Dow AgroSciences LLC; Cerexagri, Inc; Syngenta; Natural Industries, Inc.; Bayer CropScience

Publication date: March 25, 2008

The American Phytopathological Society