Keeping ants off my orange tree

I want to keep ants off my Moro Blood Orange tree because they keep transporting aphids on to it and the aphids damage the tree. I used to use Combat bait granules but I can not find it any more. Then I used Zep ant bait trays which I liked because they are transparent and I could see when they were empty but I think they were discontinued.
What is the best system for controlling ants that is still available? I found this on the web:
http://www.epestsupply.com/cgi-bin/shopper.cgi?preadd ¬tion&key=KMANTPRO
Does anyone know if it is any good? Thank you in advance for all replies.
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I have been successful with Tanglefoot.
http://www.tanglefoot.com/products/treecare.htm
It's sticky stuff that the bugs can't cross. You do have to prune any branches that touch a fence, wall or anyplace the ants can crawl up to access the tree that way.
I've not seen the AntPro system before.
marcella

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Garlic/pepper tea will keep them away. Put two heads of garlic and two hot peppers in a blender with enough water to let them liquify. Strain the liquid and add water to make one gallon of ready-to-use. Spray it where you don't want the ants.
Garlic/pepper tea also keeps away beneficials, so only spray it when you really need it.
Marcella Peek wrote:

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snipped-for-privacy@gmail.com wrote:

How often does this need to be reapplied?
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snipped-for-privacy@gmail.com wrote:

It can also clog sprayers even if you strain the mixture. Make it, strain it, let it sit, and then decant it. That gets rid of the most of the problem with particles.
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