One method to manage root-knot nematodes?

One method to manage root-knot nematodes?

• A. Plant nematode resistant varieties
• B. Apply broad-spectrum insecticides
• C. Deep tillage every week
• D. Use more fertilizer

Answer: (A)

Plant nematode resistant varieties. Root-knot nematodes attack roots and cause galls that disrupt water and nutrient uptake, so using plants bred to resist these pests directly reduces nematode infection and limits reproduction, leading to healthier roots and better yield under nematode pressure. Broad-spectrum insecticides aren’t effective against nematodes and can harm beneficial soil life; deep tillage every week disturbs the soil and can spread nematodes or worsen soil health; applying more fertilizer doesn’t reduce nematode populations and can even encourage excessive growth that doesn’t address the problem. So resistant varieties provide the most reliable control among these options.

Plant nematode resistant varieties. Root-knot nematodes attack roots and cause galls that disrupt water and nutrient uptake, so using plants bred to resist these pests directly reduces nematode infection and limits reproduction, leading to healthier roots and better yield under nematode pressure. Broad-spectrum insecticides aren’t effective against nematodes and can harm beneficial soil life; deep tillage every week disturbs the soil and can spread nematodes or worsen soil health; applying more fertilizer doesn’t reduce nematode populations and can even encourage excessive growth that doesn’t address the problem. So resistant varieties provide the most reliable control among these options.