Root Rot of Chicory Caused byPhymatotrichum omnivorumandPhytophthora cryptogea

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Abstract
Roots of dead and wilted plants in various stages of decay showed 2 types of root rot: a firm, cortical decay along the entire length of the taproot; and a soft, watery rot that progressed from the root tip to the crown. Phymatotrichum omnivorum was isolated from the former type of rot, and Phytophthora cryptogea from the latter. Morphological characteristics of the hyphae and sporangia in culture are described. The factors affecting growth of the fungi and tests proving their pathogenicity are also described.

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