Imidacloprid applied to the soil. You may do this in conjunction with a foliar oil spray. Azatrol is not neem oil. It is the solvent soluble extract from the seed. That fraction contains the azadirachtin, which is an insect repellent and IGR. Neem oil pressed from the seeds is equivalent in effect to dormant oil.
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