This tube works perfect and helped me do half acre in no time. The secret is in the technique to use. The position for dispensing hole need to be on the screen and the tube need to hit the ground in a slide angle to allow the dust to come out. If you hit the ground on a 90 degree no much dust will come out as the grass will cover the holes. Also hit the ground firmly. Before filling the tube mix the dust so the powder is lose in the dispensing tube. Good luck and kill those suckers!!!