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FIG.01 — Root-knot nematodes, diseaseTap to enlarge
Plant part
Root · Whole plant
P. persimilis
COMPATIBILITY WITH BENEFICIA…
DiseaseProblem 11 / 32
Root-knot nematodes
Symptoms
Roots have visible knots or galls; plants are stunted, yellow and wilt during heat even when soil is moist.
How to verify
Compare the photos above with the plant, and check the symptom description against the look-alike records below before acting. The source guide does not carry a separate laboratory verification note for this record.
Next step
Use clean transplants and equipment; prevent soil movement; remove infected roots after harvest; improve drainage; rotate with non-host crops and confirm the nematode species before choosing a treatment.
Active ingredients
metam sodium1,3-dichloropropenedimethyl disulfideabamectinoxamylfluensulfonefluopyramcarvacrol
Organic active ingredients
garlic extract
P. persimilis: allowed / avoid
COMPATIBILITY WITH BENEFICIALS: Check the product label and interval before releasing beneficial organisms; N/A - No foliar pesticide applied
Label matters
Active ingredients below are examples, not universal prescriptions. Confirm the diagnosis; use only products registered for tomato and the target problem in your country; and follow the current label for dose, pre-harvest interval, worker protection, compatibility and re-entry. Rotate IRAC/FRAC modes of action. When symptoms are uncertain, obtain a laboratory or extension diagnosis. Integrated pest management (IPM)—sanitation, resistant varieties, irrigation management, monitoring and biological control—should be the first line of defense.
Look-alikes to rule out
