Herbicide calibration

[Fancy giving it a go]

Evening all just a bit of advice years since I passed my PA1 and 6. Back then you had to calibrate your chemical but now most labels have a calibrations for knapsacks are these correct for all areas of use ie. annual weeds, forestry, aquatic and invasive weeds. 

[Khriss]

If you have a big, awkwardly shaped area, use Daftlogic to give yr meterage for yr chemical  useage, bit twitchy to use on a phone but accurate for spraying, safes on carrying too much water! K