Thrips and Bees - Spinosad and Imidacloprid
Hello everyone,
After several years of absence from GW and just as many reading but having little to contribute I decided to post this information because the issue is larger than what most of us would think. I have been following with interest the debate about chemicals to fight the different insect plagues that affect our roses. While in my everyday life I am both a "green person" (hard to live in Oregon otherwise) and an ever more aware environmentalist, when it came to our roses, all bets were off. Thrips got the ration of whatever was the cocktail du jour and the roses grew without serrated edges. We never sprayed nilly-willy. Where there was no infestation there was no getting the sprayer out.
Last year however, for the first time we began to see dead bees in our garden. Some appeared to be alive but paralyzed, unable to move. Others around our massive lavender that was planted specially like napeta for the pleasure of seeing the bees around and that were never obviously sprayed with anything, appeared to have died trying to get inside the lavender, not leaving the massive tangle of dried wood. Given that we had been very cautious and somehow reluctant sprayers, I was horrified. Barry and I decided to study the issue and try to find if ours was an isolated experience. I believe I don't need to add that all spraying was immediately stopped. Every road we took led to the same or similar conclusion and since neither one of us is a bee keeper or an entomologist I think it prudent to let those in that position to speak for themselves about the suspect causes instead of interpreting their words here.
Please understand that this is neither a condemnation nor do I condone the usage of pesticides, my little acre in this planet is my responsibility and I would never pretend to tell anyone what to do with their lives or with their roses, but it is important to disseminate this information because many of us believed that some products would not harm any part of an ecosystem as the manufacturers would want us to believe until we found disoriented and paralyzed bees inside a rose. I was brought up to believe that with knowledge comes responsibility. And I do feel responsible as a rosarian after nearly 40 years of growing roses to stand up and take my part of blame for my gullibility in honestly believing that one could touch one part of a very delicately balanced ecosystem without affecting others. This does not represent disingenuity in my part, I am simply publicly recognizing my stupidity. Here there is some interesting reading which I think may bring some clarity to the subject.
Allegra
http://maarec.cas.psu.edu/CCDPpt/CoxFosterTestimonyFinal.pdf
http://www.i-sis.org.uk/MysteryOfDisappearingHoneybees.php
"I am a beekeeper from Guatemala and we have had the same problem for years. We dont have the resourses to find out what the problem is and are hoping that now that you have it the issue will be treated with more attention. We have always blamed the deaths to a progrmam financed by the USA to erradicate the mediterranean fruit fly that sprays (aerial) Spinosad (Naturalyte, Success GF-120) The representatives of the USDA in Guatemala blame the "poor" conditions of our hives and bad practices. We had the visit from researchers of the USA and nobody gave us any definitive reason why the bees died.
I think that there are a lot of factors causing the problem that were already mentioned, inbreeding, something with the climate, but I believe that insecticides are the big problem, specially new generation insecticides like spinosad that people use because they are "organic"
Posted by: Carlos Torrebiarte : Apr 25, 2007 9:20:09 AM"
on http://www.thenewpolitics.com/2007/04/mysterious_hone.html
patricianat
williamcartwright
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