Re: Cult: BORER

> Are all irises susceptible to borer?  Or just bearded?  Where did borer
> come from?  Is it a North American native or a Euro import?  When
applying
> Cygon, should I administer it to my native beardless too?

Dennis,
     It looks like the Iris Borers prefer the large, fat rhizomes of the
Tall Bearded Irises.  They will on occasion attack other types, with a Iris
pseudacorus being one of them.  
     Cygon is nasty stuff, so I hesitate to recommend its use at all.  I
would especially refrain from spraying Iris types that show no sign of Iris
Borer damage, which shows up as notches taken out of the leaves.

Mark A. Cook
billc@atlantic.net
Dunnellon, Florida.
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index