Re: re: HYB: verbena moth larvae in pods

Hi,

I've never had larvae in my Iris pods, but I get assorted borers in my
cacti all the time.  The symptoms are similar (though they are usually in
stem tissue - no seeds).

I've tried a lot of methods to get at them.  Sometimes cutting is the only
way, but often I can use a fine but strong jet of water to wash them (and
their gunk) right out of the hole.  Of course the water can potentially
allow for rot too.  Also, I've used a syringe, minus the needle, to inject
a solution of powdered Malathion or Sevin into the hole.  That works quite
well, but leaves all the gunk and the dead body(ies) inside (more potential
rot).  I've tried other chemicals too, but most of the liquid pesticides
have things like petroleum based carriers in them, and these have a nasty
habit of killing part or even the whole plant.

Sometimes if you're lucky, you'll see the little beasty pushing it's
garbage out the hole, and then you can just grab him (if you're quick).
Some larvae don't come to the exit often though, just leaving their garbage
in a side room within their diggings.

Good luck,

Dave

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