What’s The Difference Between Dunks and Bits
One of the significant differences between the two of these is that bits work much faster. Bits kill mosquito larvae within a few hours because they release almost all the poison at once. Bits kill the entire larvae population before they have a chance to turn into adults because they do not have a timed-release-they release all the poison quickly, so you’ll have to sprinkle the water source again in about a week.
Bits and dunks contain the same ingredients. The major plus with dunks is that they are more frequently organic and not harmful to animals. Dunks also release the poison more slowly, so they last longer and do not require as much attention. You can also crumble up the dunk to spread it more loosely over an infested area.
With dunks, you may not have to re-treat the area for as long as 60 days because it releases the poison very slowly.