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Cornell entomologists are working with a company that has developed
a pheromone for dogwood borer mating disruption. http://fruitgrowersnews.com/index.php/magazine/article/new-sex-pheromone-blend-can-control-dogwood-borer In some regions other borers such american plum borer can be troublesome but by and large dogwood borer is the key borer pest in dwarf plantings. Diluted latex paint was was shown to suppress but not completely control infestations (see link below). The plaster addition is indeed an interesting idea. Interesting that EVA is one of the components of drywall mud. Perlite is also a component and its possible the tiny shards of glass may physically injure the larvae that must crawl through it. http://web.entomology.cornell.edu/agnello/assets/2006_Borer_barrier_rpt.pdf On 3/6/2012 10:42 AM, Maurice Tougas wrote: Interesting observation, would be great to see some University trials. Perhaps the silica acts as irritant? Do you still see borers laying eggs and larva not surviving? Also, which borers are targets? I understand that there is work with pheromone confusion a la peach tee borer research going on.Do you need to repaint every season? Thanks Mo tougas Tougas Farm Northborough, ma Sent from my iPhone On 6 Mar 2012, at 10:09 AM, <kuffelcr...@kuffelcreek.com> wrote:I've been using 1/3 paint, 1/3 water, 1/3 all-purpose drywall joint compound; this is still thin enough to brush on, but makes a pretty good crust. I had "Gripper" white primer left over (Home Depot) and have been using it, despite dire warnings about not using exterior paint. If it works again this year, I'm ready to declare victory as we've gotten hammered from borers over the last several years. Kevin Hauser Kuffel Creek Apple Nursery Riverside, California On Tue, 06 Mar 2012 06:08:08 -0600, Randy Steffens Jr <randyjrsteff...@me.com> wrote:That's interesting - what's his ratio of plaster to paint? Randy Steffens Shepherd's Valley Orchards Tennessee On Mar 6, 2012, at 3:54 AM, kuffelcr...@kuffelcreek.com wrote:Add a slug of drywall mud to the mixture and you'll have borers covered too! This is John Bunker's recipe at Fedco Trees in Maine and was effective last year in reducing borer damage here. Kevn Hauser Kuffel Creek Apple Nursery Riverside, California On Tue, 6 Mar 2012 03:48:36 -0600, Nick Lucking <n...@cannonvalleyorchard.com> wrote:Randy, I've noticed on mature trees where I had yellow belly sapsucker (woodpecker) damage and I've painted them, the birds do not return topeck. I had quite a bit of vole damage last year where I had paintedtrunks but no guards. I have started to add hot pepper sauce to the latex paint should the critters make it though the guard. Nick Lucking Cannon Valley Orchard _______________________________________________ apple-crop mailing list apple-crop@virtualorchard.net http://virtualorchard.net/mailman/listinfo/apple-crop_______________________________________________ apple-crop mailing list apple-crop@virtualorchard.net http://virtualorchard.net/mailman/listinfo/apple-crop_______________________________________________ apple-crop mailing list apple-crop@virtualorchard.net http://virtualorchard.net/mailman/listinfo/apple-crop_______________________________________________ apple-crop mailing list apple-crop@virtualorchard.net http://virtualorchard.net/mailman/listinfo/apple-crop_______________________________________________ apple-crop mailing list apple-crop@virtualorchard.net http://virtualorchard.net/mailman/listinfo/apple-crop --
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