B Spencer
Tue, 19 Feb 2013 19:50:44 PST
Two people stated they suspect narcissus fly, so I am seriously thinking 
this is the problem as lots of symptoms would confirm this diagnosis, but... 
I should think I would find a pupa (I know what it would look like since I 
had that problem with the iris borer) and some fecal matter, but even on 
close examination I could find none. The bottom four/five centimetres and 
the top part of the basal plate are completely rotted except for the outside 
wrapping leaves. Everything is soft watery and brown, but the rest of the 
plant  further up is healthy and upon slicing lengthwise looks rather like a 
leek. Is there another possibility? Perhaps a fungus that was present in the 
soil, which is a mixture of sand, dehydrated manure and bagged soil?  Cannot 
find any conclusive info on the net.

-----Original Message----- 
From: Hans-Werner Hammen
Sent: Tuesday, February 19, 2013 7:22 PM
Subject: Re: [pbs] amarcrinum

If there is a hole in the bulb, the diameter almost that of a pencil, at the 
ring on the basal plate where the roots emerge from (thus not as easily to 
be detected!), towards the growing point in the core of the bulb, then the 
bulb had been infestated by the maggot of the Big Narcissus Bulb Fly. Your 
depiction sounds pretty much like that. If so, then all your amaryligenous 
crop outdoors/in the GreenHose is at risk, from next spring on, when the 
temperatures will exceed 18°> 

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