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| Semi-mature vigorous tree Join Date: Feb 2008 Location: Australia
Posts: 218
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Anyone know how biological or non toxic tratments for elb are going? Anyone know any trials of neem oil or bacillus thuringiensis? Surely with genus specific insects there is something that makes them want to eat a certain type of leaf. Would it be that hard to change the “taste” of the leaf, I’m no insect expert but surely they would be sensitive to some sort of additive acid alkaline? It would need to make it up to the leaves and stay there for a while, possibly a capsule inserted into the soil/trunk possibly slow release so it lasts a few years, or maybe just something simple. People seem hell bent on killing insects even though there is not chance of permanently eradicating them. Just thinking out loud.
__________________ "Just cause i don't use it, don't make it wrong!" |
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| Over mature heritage tree Join Date: Jul 2009 Location: Mannering Park, Australia
Posts: 623
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hi, seems there have been quite a few tests done on food crops using Bacillus thuringiensis. Seems the main concern is that a resistance will be developed or affecting non target insects will pose a problem. There has been work in Kenya regarding water soluble Bacillus thuringiensis for mosquitoes. Seems the main fears of the scientific community is that they will open another can of worms as they have made too many mistakes in the past with biological controls. If you can get your head around the scientific jargon here is a link as an example http://www2.biologie.uni-halle.de/ge.../deMaagd_9.pdf Regards Julie |
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