I have used Manor and Celsius in the same application for control of broadleaf/grassy weeds. The effect of the two is multiplicative. 2+2 might equal 5 on both weeds and desirable grasses. In dormant grass, that is less of an issue.
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