Looking at the same label. Malathion 50% EC has been around from before I was born. 1 oz per gallon is more like the dose for dormant trees for scale control. 2 teaspoons per gallon is for control of aphids and mites on plants in leaf.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738