[CANUFNET] CANUFNET Digest, Vol 59, Issue 2

[Glenn Chernick]

What I would suggest is just spraying the tree down with water once or twice per week, could use a pressure washer, just on the undersides of the leaves.  Customer could also use yellow sticky traps in their yard or a yellow kiddie pool with a drop or two of soap in it.  Insecticidal soap would as a foliar spray if you applied it 2 or 3 x per week for 2 weeks.  But you might not get any better control than using the water in bad aphid years.
Glenn Chernick
Forestry Technician
City of Regina

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Today's Topics:

   1. aphid infestation in Basswood (Bartram Woodlands)


----------------------------------------------------------------------

Message: 1
Date: Thu, 1 Oct 2009 15:35:07 -0400
From: Bartram Woodlands <bartramwoodlands at sympatico.ca>
Subject: [CANUFNET] aphid infestation in Basswood
To: Canadian Urban Forest Network <canufnet at list.web.net>
Message-ID: <BLU0-SMTP91BC4B7A98AB5A75524D41E9D30 at phx.gbl>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

Um, I have a client with a 70' Little leaf Linden in Backyard, covered  
in soot from heavy aphid infestation throughout this year and dates  
back to late summer last year.

Tree is dripping honeydew on nieghbouring property and all plants/ 
shrubs in garden now sooty. How do you spray a 70' tree repeatedly to  
remove aphids?  Do oil sprays work in spring? Aphids are now gone,  
likely in bark I presume. Would imidacloprid be effective. Guelph has  
banned cosmetic pesticide use.
Tree although healthy seeming is boxed in by other trees and heavily  
limbed. Plan to prune lower/ small limb to increase light through  
lower canopy.

Any assitance appreciated - Thanks ,

Dave Bartram



End of CANUFNET Digest, Vol 59, Issue 2
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