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Anthurium Diseases
Anthurium Decline
Anthurium decline is caused by the
burrowing nematode, Radopholus similis, a microscopic
round worm. The burrowing nematode is known to feed on the roots
of more than 300 plant species.
Plants affected by burrowing nematodes show signs of
nutrient deficiency, stunting, fewer and smaller leaves and
flowers, premature leaf yellowing, and overall poor plant vigor.
Roots of infected plants have few to many dark necrotic lesions.
In the advanced stages of this disease, the root entire root
system may be deteriorated as a result of secondary microorganisms.
Although it is often difficult to differentiate between burrowing
nematode damage and root rot, the key symptom of burrowing nematode
infection is the dark lesions on the stem below and especially
above ground, sometimes extending up to the apical part of the
plant.
The most important control measure is to start with nematode
free planting material and media. Every effort should be directed
toward preventing the introduction of nematodes into the planted
area, with emphasis on vehicle tires, equipment and tools, footwear,
and flow of runoff water into the planted area.
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