Question

1) Plant parasitic nematodes attack many important crops resulting in millions of dollar in damage. In roots, injury by nematodes may be detected by the presence of lesions, cysts or galls/knots. Identify one genius of nematode that produces cysts, one genius that produces lesions, and one genius that produces galls on important agricultural crops in Ontario. List the crop and describe the damage.

Answer 1

Question: 1) Plant parasitic nematodes attack many important crops resulting in millions of dollar in damage. In roots, injury by nematodes may be detected by the presence of lesions, cysts or galls/knots. Identify one genius of nematode that produces cysts, one genius that produces lesions, and one genius that produces galls on important agricultural crops in Ontario. List the crop and describe the damage.

Answer:

Name of the Nematode	Species:	Genus:	Method of attack	Type of crop
Soybean cyst nematode	Heterodera glycines	Heterodera	Cyst	The nematode infects the roots of soybean and the female nematode eventually becomes a cyst.
The Northern root-knot nematode	Meloidogyne hapla	Meloidogyne	Knot	vegetable pathogens which produces tiny galls on fruit and vegetable, invade root tissue after birth
The root lesion nematode	Pratylenchus penetrans	Pratylenchus	Lesion	Inhabits the roots of a wide variety of plants including hosts apple, cherry, conifers, roses, tomato, potato, corn, onion and sugarbeets