Certain forms of Imidicloprid are labeled for large farms of tomatoes, peppers, and other widespread crops. This is widely used on citrus trees. No bees ever hang around citrus trees do they? This is the main reason we are losing our bees. There are lots of things that are labeled for use, that you really wouldn't want to get close to, especially when you know someone who is now sick or dying because they worked at a nursery that used the "safe to use" chemicals. I know, or have known 3 people in this situation. They dont die very comfortably. Until people consider coffee as a poison (even though it has 3 carcinogens, and 2 neurotoxins in it), that is what I will be using. I brew a 55 gallon batch each time, but rarely use that much before it goes bad.