Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Colletotrichum lindemuthianum. [Descriptions of Fungi and Bacteria].

Abstract

A description is provided for Colletotrichum lindemuthianum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On French, runner and broad beans, Phaseolus aborigineus, P. acutifolius, P. aurecus, P. lunatus var. macrocarpus, P. mungo, P. radiatus, cowpea, Dolichos biflorus, Lablab niger and occasionally on other Leguminosae. DISEASE: Leaf, stem and pod anthracnose. Lesions on stems and pods more clearly defined than those on leaves, grey or brown, slightly sunken with raised dark brown or reddish edge, frequently bearing conspicuous light salmon pink spore masses. All vegetative parts, except pulvini, are susceptible during early stages of development; invasion of the tap root of a young plant can lead to death. GEOGRAPHICAL DISTRIBUTION: Widely distributed, present in almost all areas where beans are grown (I.M.I. Map 177, ed. 3, 1966). TRANSMISSION: Overwinters in seed and on buried infected crop residues. Survives for at least 2 yr on seed (32: 114) and is capable of withstanding temperatures of-15°C to -20°C for a limited period (6: 322). Dispersal within the crop by water, air currents and contact; no extensive growth in soil has been reported.