Fusarium stem and fruit rot of sweet pepper in Ontario greenhouses

capsicum annuum chemical control control cultural control de enfermedades cultivo protegido cultural control culture sous abri disease control enfermedades fungosas fongicide fruits frutas fungal diseases fungicidas fungicides fusarium solani greenhouses higiene hygiene invernaderos lutte chimique lutte culturale maladie fongique nectria nectria haematococca ontario protected cultivation serre stems tallo tige