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  • From: rob hamilton <lostman_amiga@yahoo.com>
  • To: nafex@lists.ibiblio.org
  • Subject: Re: [NAFEX] mites
  • Date: Thu, 16 May 2002 07:50:33 -0700 (PDT)

Well, I am pretty sure that these are not spider
mites.
I have taken some pictures of these little bugs under
magnifictation. I think they are velvet mites or
worst of all chiggers!! I dont know if we can post
pictures yet, but I think I will need to try and
control these things. I was just hoping they were
preditory mites.

Thanx for the site link.


robert


--- Margie Luffman <luffmanm@em.agr.ca> wrote:
> Hi everyone. I verified the following information
> with one of my technicians (Kathy Vollans) who has
> greatly improved our IPM record and predator usage.
> Kathy does all the scouting for the Genebank houses
> and until her arrival our problems with mites were
> overwhelming. Regular spider mites (TSSM) can be
> bright red particularly in the winter; it varies
> with temperature and food. Predators are the same
> size as spider mites.
>
> What you probably have in this situation are
> European red mites (Panonychus ulmi). They are much
> larger than spider mites but are the same shape.
> They retain the deep red colour all year. They are a
> major problem on apple trees. Damage is not obvious
> at first so this means that by the time you actually
> notice damage the infestation will be quite
> advanced. ERM's will respond to biologicals (try
> Typhlodromus pyri or Amblyseius fallacis - we use
> this one) but it takes longer. The same sprays that
> control spider mites will control ERM.
>
> A good website to check out:
>
http://www.nysipm.cornell.edu/factsheets/treefruit/pests/erm80/eredmite.html
>
>
> Good luck.
>
> Margie
>
> Margie Luffman
> Curator, Canadian Clonal Genebank Program
> Agriculture & Agri-Food Canada
> Greenhouse and Processing Crops Research Centre
> 2585 County Road 20
> Harrow, Ontario
> N0R 1G0
>
> Phone: 519-738-2251 ext. 474
> Fax: 519-738-2929
> E-mail:luffmanm@em.agr.ca
>
>
> >>> deankreutzer@hotmail.com 05/14/02 11:13am >>>
> Hi Rob,
>
> They may be predator mites (a good thing), but I
> believe they are not any
> larger than regular mites, just with the reddish
> color, they are a lot
> easier to see.
>
> Dean
>
> >I seems to have (what looks to be) mites all over
> the
> >my plants and a few in the house. I thought they
> were
> >spider mites but they seem to be rather big. You
> can
> >see these bugs rather well with good eyesite. They
> >are about a millimeter in size and fast moving.
> They
> >are deep red all over with lighter grayish red top
> >body.
> >They don't seem to be harming the plants, but I
> cant
> >tell.
> >
> >Anyone know what these things are?
>
> _
>
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