Glyphosate (Roundup) drift will cause sudden yellowing of leaves, particularly on newly expanded leaves and runner tips. Yellowing will occur on these tissues at approximately the same time, and will be followed by stunted growth.
Herbicide drift will often cause damage that is greater at one end of a field than the other.
Herbicide Injury: Glyphosate (Roundup): NC State Extension
Strawberries: Glyphosate. OMAFRA