bought gallon jugs. Item was shipped out immediatly and very well packed for shipment. I was concerned that instructions would not include my application instructions for Hemlock tree infestation. fears were unfounded as all types of applications and directions for dosage were clearly marked and explained. The liquid was easy to mix with the required water and applied without any problem. There are 2 lbs of Imidaclopid in every gallon which makes Amtide a very cost effective product to use. Effectiveness is measured in seasonal years, so I can't comment on the effectiveness as it was just applied. Really liked the ease of mixing a liquid instead of a power.