Date: Fri, 22 Dec 2000 13:33:20 +0000 From: Phil Wilson <cp@pwilson.demon.co.uk> To: cp@opus.hpl.hp.com Message-Id: <aabcdefg3681$foo@default> Subject: Re: Grasshoppers!
Miguel,
>
>We have a plague of grasshoppers here in Tasmania at the moment, so much so
>that a few dozen jump in front of your feet every time you take a step. In
>the last couple of weeks they have started eating most of my CPs and
>orchids!!! :(
>
>I have a bog full of Sarrs covered in holes, and some of my soft tender
>orchids have only leaf veins left...
>
>I can't spray, as more just move in from the garden overnight... Needless
>to say there is no room in the house for my collection. Has anyone ever had
>this problem before?
>
As you have already said, spraying is not going to be successful, nor
are any biological solutions. A few dozen preying mantids would take a
few grasshoppers each but there is a limit to how many each mantid will
eat.
Probably the only feasible solution is to cover the plants in some sort
of netting to keep the grasshoppers out. You could probably get away
with something fairly temporary with a mesh size sufficient to exclude
the pests.
Regards,
Phil Wilson
Email: cp@pwilson.demon.co.uk
Web Site: www.pwilson.demon.co.uk
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