Can green guardian be applied using a standard pump or backpack sprayer or would I need a powered spray unit? Also, I downloaded your catalog from the website and it has 2006 product prices, are these acurate to date? and what is the best way to order and how long does it take to ship? And one last question...do I have to buy it direct or do you have distributors that it can be purchased from. I am in the northeast and would be interested in trying the product.