A computer-implemented method of selectively treating vegetation in a field with a treatment apparatus (24, 40) that is configured to move in the field and to treat vegetation in the field, the method including: receiving geo-referenced image data of a field, from one or more image capture devices not coupled to the treatment apparatus (24, 40), wherein the geo-referenced image data includes a plurality of pixels and geo-reference data associated with each one of the pixels; analysing spectral information of the pixels to classify pixels as target vegetation in the field; determining a location of the target vegetation in the field based on the geo-reference data associated with pixels classified as said target vegetation; determining geo-referenced application map data based on the location of the target vegetation in the field, wherein pixels not classified as said target vegetation are not included in the geo-referenced application map data; providing the geo-referenced application map data to the treatment apparatus (24, 40) and moving the treatment apparatus (24, 40) based on the geo-referenced application map data; receiving ambient data from the treatment apparatus (24, 40) moving in the field; determining treatment instruction data for actuation of at least one treatment applicator, disposed on the treatment apparatus (24, 40), configured to treat vegetation in the field, based on the geo-referenced application map data correlated with the ambient data; providing the treatment instruction data to the at least one treatment applicator; and the at least one treatment applicator treating the target vegetation in the field based on the treatment instruction data when the treatment apparatus (24, 40) is moved to the target vegetation in the field; wherein the geo-referenced image data is recorded as data native to the one or more image capture devices; wherein the geo-referenced image data of the field includes a plurality of channels of data, and the method further includes consolidating the channels to form one channel for the geo-referenced application map data by representing the target vegetation as a vector of intensity values; and segmenting the geo-referenced application map data by applying one or more threshold values to the intensity values. receiving geo-referenced image data of a field, from one or more image capture devices not coupled to the treatment apparatus (24, 40), wherein the geo-referenced image data includes a plurality of pixels and geo-reference data associated with each one of the pixels; analysing spectral information of the pixels to classify pixels as target vegetation in the field; determining a location of the target vegetation in the field based on the geo-reference data associated with pixels classified as said target vegetation; determining geo-referenced application map data based on the location of the target vegetation in the field, wherein pixels not classified as said target vegetation are not included in the geo-referenced application map data; providing the geo-referenced application map data to the treatment apparatus (24, 40) and moving the treatment apparatus (24, 40) based on the geo-referenced application map data; receiving ambient data from the treatment apparatus (24, 40) moving in the field; determining treatment instruction data for actuation of at least one treatment applicator, disposed on the treatment apparatus (24, 40), configured to treat vegetation in the field, based on the geo-referenced application map data correlated with the ambient data; providing the treatment instruction data to the at least one treatment applicator; and the at least one treatment applicator treating the target vegetation in the field based on the treatment instruction data when the treatment apparatus (24, 40) is moved to the target vegetation in the field; wherein the geo-referenced image data is recorded as data native to the one or more image capture devices; wherein the geo-referenced image data of the field includes a plurality of channels of data, and the method further includes consolidating the channels to form one channel for the geo-referenced application map data by representing the target vegetation as a vector of intensity values; and segmenting the geo-referenced application map data by applying one or more threshold values to the intensity values.