hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Re: Nematode talk

  • Subject: Re: Nematode talk
  • From: Parwinder Grewal <grewal.4@osu.edu>
  • Date: Wed, 07 Nov 2001 14:15:16 -0500

Hello Paula,

Thanks for the feedback on my presentation and your intention to support my 
research on the foliar nematodes.  I shall greatly appreciate your 

  I am sorry about the lighting system in the room.  Yes, I can mail a copy 
of my Hosta Journal article to you if I have your address.  I shall also 
include the text of my conclusion slides.

Best Regards,

Parwinder Grewal

At 07:14 PM 11/02/2001 -0500, you wrote:
>Hi all,
>Dr Grewald, of The Ohio University spoke at our Minnesota Hosta Society 
>meeting Oct 27th. He has worked on Mushroom nematodes with Clarence
>(or C.H. to us) Falstad.
>Where Dr. Grewal's work has been published:
>Hosta Journal 32, (1) 64-67 2001
>Hosta Leaves 67, 3-7 Spring 2001
>Pest Management Science 2002
>we can email him through this site.
>Being in the dark it was very hard to take notes, but here are some notes 
>Kim Larsen, Cindy johnson and I jotted down.
>Plantagina Hostas don't always show symptoms of nematodes.
>Nematodes are believed to enter hostas under the leaves.
>Bleach gardening tools between each plant.
>Cindy's comment:
>prevention better than the cure
>buy nematode free plants - in fall you can tell, or get them tested
>minimize overhead sprinkling
>cut and destroy infected leaves
>isolate infected plants
>fall cleanup (last Sunday a good day) collect and destroy leaves.  won't 
>spread them on pruners because they are dormant now because of the cold 
>temps we've had
>they die if exposed to UV light
>TC plants probably safe
>There are a few ways to control them:
>Hot water  (51c/61c/124c- 10 minutes)hotwater drench in pot = 200 deg
>Kim's comment:And another crucial finding after all the testing
>of chemicals:  hot water and insecticidal soap are almost as effective as
>the chemicals and obviously less harmful to the environment.  Lisa & I had
>dinner with him and further discussion lead to his comment that if the 'heat
>treatment' I applied in my unscientific study this summer (Paula, you know
>what I mean) shows no symptoms next year, I'm probably nematode free in
>those plants!  Thus the anecdotal 'asphalt driveway treatment' I got from
>Tom Michelletti must have merit.  Another breakthrough to those of use
>loathe to use chemicals.
>Under chemicals you have your choice:
>Plant Derivatives
>Some of the things he has worked with are:
>Diazinon 4E (soon to be off the market)
>Insecticidal Soap
>Clove Extract
>Zertol is still available to the home owner and seems to be one of the 
>most effective of what he tested.
>We did suggest Nemacur and Bleach to be another couple to try.
>He did say Nemacur will not be on the market long because of it's toxicity.
><http://www.oardc.ohio-state.edu/nematodes/>Insect Parasitic 
>Nematodes  This is his web site and his email is on the site.

To sign-off this list, send email to majordomo@mallorn.com with the

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index