Narcissus fly

Ton de Waard
Tue, 06 May 2008 12:43:32 PDT
In the commercial trade here in Holland they use a
warm water treatment to get rid of the big narcissus
fly (Merodon equestris). After digging the bulbs they
soak them for 2 hours in warm water (43.5 C) this
kills the larva of the big narcissus fly. 
The small narcissus fly (Eumerus strigatus) does not
do much harm to healthy bulbs.

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