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Insect & Disease ID And Diagnosis Guide: Necrosis

Diagnose pest and disease issues that manifest as necrosis.

January 19, 2009

  •  Brown wedges bounded by the midvein of this mum leaf indicate foliar nematode.  © 2009
    Brown wedges bounded by the midvein of this mum leaf indicate foliar nematode.
  •  Necrotic lines and rings form in coleus leaves infected with INSV.  © 2009
    Necrotic lines and rings form in coleus leaves infected with INSV.

Seeing necrosis on your crops? Take a look at these pictures to see common issues that can lead to necrosis.

Scouting tip: Remove a few plants from their containers. Look for poorly developed root systems, scorched tips, soft decay, discoloration or evidence of feeding on roots or root hairs.

Brown wedges bounded by the midvein of this mum leaf indicate foliar nematode.

Necrotic lines and rings form in coleus leaves infected with INSV.

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