Methods and systems related to agrochemical application

A method for selecting a nozzle-agrochemical combination to perform at least one of reducing resistance development in a pest species, reducing phytotoxicity in a crop plant, maximizing effective dose, and reducing off target effects, the method comprising:

• obtaining a target area having a target zone and an off-target zone;
• spraying for a time (T), a volume (V), of a liquid composition through a test nozzle, at a height (H), at the target zone of the target surface;
• measuring at least one of:
• the amount of the liquid composition in the target zone, and
• the amount of the liquid composition in the off-target zone;
• producing a heat map of at least one of:
• the measured amount of the liquid composition in the target zone, and
• the measured amount of the liquid composition in the off-target zone.