Botrytis loves damp cool places. It thrives at about 18 to 23â°C with high humidity. Above 32â°C it can't really grow (think high CO² supplimented grows) and above 50â°C the spores are killed very quickly, in seconds.
Fungicides kill it, soap kills it, ethanol 30% kills it all in 30s, UVC can kill it.
On surfaces in a typical grow room it has no problem surviving for 2 or 3 days but needs high humidity to germinate. In soil spores can remain viable for years.