Diseases diagnosed on greenhouse crops submitted to the Southern Alberta Regional Crop Laboratory and Brooks Diagnostics Limited in 1993

abiotic injuries aetiology alberta cultivos de invernadero deficiency diseases disease prevalence disease surveys disorders encuestas sanitarias enfermedades de las plantas estres etiologia etiologie greenhouse crops herbicidas herbicide herbicides maladie de carence maladie des plantes nutrient deficiencies pathogens plant diseases plantas plante plante de serre plants stress trastornos trouble