Grey mould rife in greenhouse
Hi I haven't visited my greenhouse in a couple of weeks, but I had some Salvias bought as plugs which I had potted on and they were doing well. Today to my dismay I see that botrytis has rampaged through most of them. What is my best course of action, is it worth applying a chemical fungus fighter to try and save them or should I remove and destroy them so as not to infect the other plants? Any advice on how to stop this happening again would also be helpful, the greenhouse has an automatic vent so air does circulate on warm days. Thanks in anticipation of your responses.