Black mustard is an annual weed that is very competitive with artichoke in the winter months. It is also attractive to bees and must be controlled before it blooms and attract bees in order to allow insecticides that are toxic to bees to be used for the control of plume moth. Field bindweed is a vigorous perennial weed that grows either from seed, stolons, rhizomes, or extensive roots. Because seeds can survive up to thirty years in the soil, destroy plants before they can produce seed. The plants may be spread vegetatively through stem or root sections during cultivation.
Prevention is the best control.
Monitor fields and destroy spot infestations before they increase. Avoid bringing in propagules with planting material and cultivation equipment. Yellow and purple nutsedge are perennial weeds that reproduce from underground tubers. These tubers survive for several years in the soil and contain several buds that are capable of producing plants. Only one bud at a time germinates to form a new plant.