Humble suggestion: I think the threads "Herbicide Basics for Food Plots" and "Purchasing Herbicides" should be sticky notes or whatever equivalent that keeps them at the top. Just my $0.02. I just bought a couple herbicides that are new to me - Clethodim and 2,4D. I haven't read the labels yet, but will this weekend, when I use them. I thought I'd ask the newbie question - is there a standard shelf life for each chemical and is there a place where they are all listed? I'd like to bookmark it.