Lots of people seem to use parasitic flies to keep greenhouse aphids under
control these days- has anyone experience of using these, and how effective
were they?
Paul D

On 12/6/06 19:23, in article ,
"Easynews" wrote:

Lots of people seem to use parasitic flies to keep greenhouse aphids under
control these days- has anyone experience of using these, and how effective
were they?

We use them here all the time and it's extremely efficacious. They arrive
in the post regularly and we either hang the little paper envelopes on
various plants in the different glasshouses or take the tops off their
little plastic bottles and let them find their own way out. We use
nematodes, also. My husband has been working in this way since back in
the 50s/early 60s. If you do a Google search you'll find several suppliers
for the amateur gardener but it is *very* important that you don't lose your
nerve and introduce chemical sprays again.
--
Sacha
www.hillhousenursery.co.uk
South Devon
(email address on website)

Not tried them , but am experimenting with two trials this year.
First is the use of two spiderrs who have webs stretching across the
greenhouse, and catch loads of flies,(including me)
The other is the use of citronella candles in the form of tea lights.
Touch wood, no aphids so far, except those caught up in webs.
regards
Cineman

"Easynews" wrote in message
...
Lots of people seem to use parasitic flies to keep greenhouse aphids under
control these days- has anyone experience of using these, and how
effective were they?
Paul D