Herbicide Residues and Re-cropping to Potatoes
Herbicide residues from previous crops grown in rotation with potatoes can affect yield and tuber quality factors such as size, shape and specific gravity (Figure 3.4-2, 3.4-3 and 3.4-4). The vigor of seed produced from field with an herbicide residue can also be negatively impacted. The herbicide residue is concentrated in the tuber resulting in poor seed performance. Herbicides that could potentially harm potatoes are listed in Table 3.4-3.