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  Re: [aroid-l] Amorph Blues
From: "Wilbert Hetterscheid" <hetter at xs4all.nl> on 2004.07.25 at 10:21:39(11801)

The maggots you describe in your Hymenocallis must be what we here in
Holland call "Narcissis fly" (Merodon equestris, of the fly family
Sirphidae), a very destructive creature. The fly deposits one or a few eggs
close to the neck of the bulb. The young maggots find their way down into
the bulb and eat it from inside out and you never saw it before they hatch
or the bulb rots away. Bulbgrowers here who fear they may have infected
bulbs, put these in warm water for a while (or even hot, ca. 60 C for a
short while), which is supposed to kill the maggots. Other than that the
only safe way is to have a small net over the developing plant or keep the
plant out of the open air (in a greenhouse). There are areas in Holland
where you simply cannot keep Amaryllidaceae out in the open.

Of course, this thing has nothing to do with fungus gnats.


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