Harrell's Compendium of Tropical Plant Diseases & Disorders

A COMPENDIUM OF TROPICAL PLANT DISEASES AND DISORDERS

PHYTOPHTHORA DISEASES

SYMPTOMS

Black or brown sunken lesions at the base of the stem or anywhere on leaves

Rapid death especially following water stress

Dead tops with little if any root damage

Diseases caused by Phytophthora are among the most aggressive and damaging as above ground plant tissue is often targeted resulting in stem rot, crown rot, aerial blight in addition to bud rot of palms. Phytophthora species also cause root rot.

FAVORABLE CONDITIONS

Overwatering and overhead irrigation

Drought stress or high temperatures

Ebb and flood irrigation systems

PHYTOPHTHORA BLIGHT ON ANTHURIUM

PHYTOPHTHORA BLIGHT ON MONSTERA

PHYTOPHTHORA BLIGHT PICHARA AQUATICA

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PHYTOPHTHORA CROWN ROT OF BROMELIAD

PHYTOPHTHORA CROWN ROT ON BROMELIAD

PHYTOPHTHORA BLIGHT PICHARA AQUATICA

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