Dr Nigel Raine, a bee researcher at Royal Holloway, has welcomed the result of an EU vote to introduce a ban of three pesticides believed to be harmful to bees.
He told ITV News it was "good news" and when the ban comes into effect it will be "crucial" to monitor bee populations to make sure it is effective.
He added that "we need to think about what we're going to use instead".
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Mr Blavatnik, whose empire includes the Warner Music Group, has an estimated fortune of £13.17bn according to the Sunday Times Rich List.
Find out what to expect from the weather if you are running in the big race in London or watching from the sidelines.
It will be a soggy start to the weekend and temperatures will drop making it feel colder than in recent days.