What causes these spots??

Wenn es der TMV sein solte dann must du sie Aufjedenfall entsorgen den er ist ansteckend.

That looks like that tobacco blight,can't remeber the name.I'd keep it away from the rest until you know.It could infect the rest.Google the "tabacco blight infecting cannabis plants".Watch the info you get as so much is incorrect.Tripple check all info.mine included.People giving plant destroying info are ninja,oregano and the worst offeder as he sounds so legic with his large vacabulary is double zero.Come and tell me I'm wrong boys and I'll point out how you've all made a number of mistakes in a matter of days.Iv put it to them on their pages for them to ignore me and elete my comment which says it all.My reputation has taken a liftime to cultivate and you clowns have tried to destroy it,that stops now.Sorry to bring it to you bar.Just be careful.