Cyrtanthus suaveolens & Narcissus bulb fly

Lee Poulsen
Tue, 17 Nov 2009 22:43:40 PST
I used to have this problem all the time with nearly all of my 
Cyrtanthus. So much so, that I rarely got to see any flowering 
whatsoever, because it seems the maggots always went after the mature 
bulbs leaving behind all the offsets. So all I ever seemed to have was 
pots of offsets. So this is one genus that I now regularly dose with 
Imidacloprid at the beginning of their growing season and then again 6 
months later. (It also gets rid of the mealy bugs that sometimes show up 
down in the base of the plants.) Now, finally, the offsets are starting 
to grow to mature size and I'm beginning to get blooms on the smaller 

--Lee Poulsen
Pasadena, California, USA - USDA Zone 10a

Mary Sue Ittner wrote:
> The Narcissus bulb fly got into my pots in 2007 and took out some of 
> the bigger bulbs. By then there were a lot of offsets so I unpotted 
> them and gave them all the squeeze test and repotted the ones that 
> were firm and disposed of the ones that were squishy. I've had this 
> problem with other Cyrtanthus species too.

More information about the pbs mailing list