Tell me more about nipping out broad bean tips
In article ,
"Mary Fisher" writes:
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| I'm wondering if blackfly infestation is linked to latitude, so far there's
| been advice/experience from the far south, East Anglia and you - the closest
| to me.
To some extent. Hard winters reduce such things.
But living in a town makes more difference. If there aren't enough
of both the winter and summer hosts in the vicinity, there won't be
a permanent blackfly population. Same as for malaria.
Regards,
Nick Maclaren.
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