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When we have 16 ounces, it can also be called a pound (lb). 1 pound = 16 ounces.
Since Mojave 70 EG will kill anything and everything where it is applied, there is nothing left to hold the dirt in place. So yes, it can cause erosion indirectly.
Mojave 70 EG is a dispersible granule that needs to be mixed with water and surfactant to be sprayed.