Cutworms and bulbs

Rodney Barton
Mon, 21 Mar 2016 19:05:01 PDT
If you try iris for bait go with buds or flowers. 


      From: Jane McGary <>
 To: Pacific Bulb Society <> 
 Sent: Monday, March 21, 2016 1:36 PM
 Subject: Re: [pbs] Cutworms and bulbs
As to the latest suggestions,
row cover: The caterpillars live underground and emerge at night to 
feed; also, this collection isn't broccoli. I suppose row cover (Reemay) 
could be laid on the beds in summer, if I knew exactly when to do so, 
but there is always a little growth here and there that would be harmed 
by this practice.

Dipel: I don't know it. One problem with anything you spray on foliage, 
however, is that it may promote mold, which can be a worse problem than 
predatory caterpillars.

I'm still leaning toward applying Thuricide (Bt) to bait leaves, if I 
can figure out which kind would attract the crawling devils. I read that 
irises are particularly likely to be attacked, so I may try taking 
leaves from some of the bearded irises out at the margin of the garden 
(anybody looking for I. albicans?).

Jane McGary
Portland, Oregon, USA

On 3/20/2016 4:58 PM, Bracey Tiede wrote:
> Row cover?


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