They don't eat it. If the powder comes in contact with an insect's body it begins to damage/cut their exoskeleton and dry them out. It is a very effective method of dealing with certain insects.. assuming they are actually coming in contact with the powder. It's also a safe product to use in your lawn. If used on the lawn ensure that you have no precipitation in the forecast for at least a couple of days as it will easily wash the powder away.
Will they eat diatamacious earth?
They don't eat it. If the powder comes in contact with an insect's body it begins to damage/cut their exoskeleton and dry them out. It is a very effective method of dealing with certain insects.. assuming they are actually coming in contact with the powder. It's also a safe product to use in your lawn. If used on the lawn ensure that you have no precipitation in the forecast for at least a couple of days as it will easily wash the powder away.