What term describes irregularly shaped root balls caused by nematodes?

What term describes irregularly shaped root balls caused by nematodes?

• A. Canker
• B. Root Knot
• C. Die Back
• D. Blight

Answer: (B)

Irregular root balls are a classic sign of root-knot nematode damage. Root-knot nematodes infect the roots and cause cells to enlarge, forming knots or galls along the root system. These swellings distort the root structure, producing irregular, knobby root balls rather than smooth, evenly formed roots. The result is poorer water and nutrient uptake, leading to stunted growth and yellowing plants. Other options describe issues that affect stems, leaves, or bark rather than root deformities caused by nematodes, so they don’t fit this specific symptom.

Irregular root balls are a classic sign of root-knot nematode damage. Root-knot nematodes infect the roots and cause cells to enlarge, forming knots or galls along the root system. These swellings distort the root structure, producing irregular, knobby root balls rather than smooth, evenly formed roots. The result is poorer water and nutrient uptake, leading to stunted growth and yellowing plants. Other options describe issues that affect stems, leaves, or bark rather than root deformities caused by nematodes, so they don’t fit this specific symptom.