Which one of the following pairs of weeds and crops is not correctly matched

Striga commonly known as witchweed is a genus of parasitic plants that occur naturally in parts of Africa, Asia, and Australia. Sorghum is the most common crop affected by striga.

Cuscuta compestris is a parasitic plant that belongs to the family Convolvulaceae. It is a pest of Lucerne.

Typha is an aquatic or semi aquatic rhizomatous, herbaceous perennial herb plant. It is not a weed, it is a useful plant and source of fibre for rayon and crude. Thus its combination with sugarcane is wrong.

Orobanche is a flowering parasite on tobacco roots and occurs in all the tobacco tracts in India.