"Rasping" and stippling are typical symptoms of thrips feeding
Vegetable
Most adult thrips are slender, elongate, minute, and range in color from white, yellow, dark brown, or black
IYSV symptoms include bleached spots on leaves that sometimes have a green center
TSWV symptoms include necrotic spots on the upper sides of young leaves - Cornell University
Seedcorn maggot life stages and damage - Art Cushman, USDA Systematics Laboratory, Bugwood.org
Seedcorn maggot present in a seed
Seedcorn maggot infested cabbage (left) - Clemson University, USDA Cooperative Extension Slide Series, Bugwood.org
Progressive onion maggot damage to onions
Cabbage maggot damage on a young cabbage plant - Mary Ann Hansen, Virginia Polytech, Bugwood.org
Seedcorn maggot present in an underground stem
Chlorotic symptoms of downy mildew on spinach leaves - Cornell University