title: Foliar treatments of 2,4-dichlorophenoxyacetic acid for control of common scab in potato have beneficial effects on powdery scab control.
abstract: Prior studies have shown that applications of the synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) to the foliage of potato plants can reduce common scab. Here field and glasshouse trials suggest that 2,4-D foliar treatments may also reduce the biologically distinct tuber disease, powdery scab. Significant correlations between suppression of common and powdery scab from the field trials suggested an interaction between the two diseases or possible additional broad spectrum mechanisms of enhanced defence against pathogen invasion provided by 2,4-D treatment.
authors.affiliation: Tasmanian Institute of Agriculture, New Town Research Laboratories, University of Tasmania, 13 St. Johns' Avenue, TAS 7008, Australia.
authors.forename: Hannah Katherine
authors.initials: HK
authors.lastname: Thompson
authors.affiliation: Tasmanian Institute of Agriculture, New Town Research Laboratories, University of Tasmania, 13 St. Johns' Avenue, TAS 7008, Australia.
authors.forename: Robert Stephen
authors.initials: RS
authors.lastname: Tegg
authors.affiliation: Tasmanian Institute of Agriculture, New Town Research Laboratories, University of Tasmania, 13 St. Johns' Avenue, TAS 7008, Australia.
authors.forename: Ross
authors.initials: R
authors.lastname: Corkrey
authors.affiliation: Tasmanian Institute of Agriculture, New Town Research Laboratories, University of Tasmania, 13 St. Johns' Avenue, TAS 7008, Australia.
authors.forename: Calum Rae
authors.initials: CR
authors.lastname: Wilson
mesh_terms: D015084:2,4-Dichlorophenoxyacetic Acid / Q000008:administration & dosage*; D010935:Plant Diseases / Q000382:microbiology* / Q000469:parasitology*; D011198:Solanum tuberosum / Q000187:drug effects / Q000382:microbiology* / Q000469:parasitology*; D013302:Streptomyces / Q000187:drug effects
chemical_list: D015084:2,4-Dichlorophenoxyacetic Acid