Bulbs > Galanthus

In fear of the Narcissus Fly

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uvularia:
I have to say that starting a collection of Galanthus is very exciting but after reading much about their cultivation, one starts to live in fear of the Narcissus Fly. Luckily my only losses to this creature is 'Brenda Troyle' and she is proving to be relatively vigorous. So not a disaster. But I would be upset if my less vigorous varieties were attacked. Apart from constructing a 'Narcissus Fly-proof' bulb house, can anyone suggest some simple ways of protecting individual clumps?

Alan_b:
Systemic insecticide.

In principle you could construct covers for use when the flies are active.  Last year I covered a whole raised bed and a collection of pots with fleece from late May to late August.  Nothing has obviously suffered but it's way too soon to know if I have derived any benefit.  My concern was the Swift Moth, because their larvae have a voracious appetite for snowdrops.

Maggi Young:
Kentish Lass has told us before of using upturned hanging baskets covered with  fine mesh or horticultural fleece to protect individual clumps.
As you might imagine, narcissus fly  features quite often in forum discussions - mostly with assorted expletives!

Maggi Young:
Some of the threads showing  the worry of this pest!

http://www.srgc.net/forum/index.php?topic=204.0

http://www.srgc.net/forum/index.php?topic=3690.0

http://www.srgc.net/forum/index.php?topic=9919.0
http://www.srgc.org.uk/smf/index.php?topic=4405.0

http://www.srgc.org.uk/smf/index.php?topic=4297.0    lesser narcissus fly

http://www.srgc.org.uk/smf/index.php?topic=1850.0

uvularia:
Thanks Maggi! That is a few threads to have a look through!

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