A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is injurious to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock.

What does objectionable weed mean?

objectionable weeds are weeds which are harmful in one or more of the following ways. the size and shape of their seeds are so similar to that of the crop seed that it is difficult to remove. their growth habit is detrimental to the growing crop due to competing effect.

Which is an objectionable weed in mustard?

During roguing special attention is required to remove objectionable weed. In mustard crop, Mexican prickly poppy (Argemone mexicana) is designated as objectional weed. This weed is commonly known as satyanasi in northern part of India.