Characterization and chemical control of black leaf spot disease of palasan (Calamus merrillii Becc.) caused by Phyllachora species

Issue Date

1-1996

Abstract

The characterization ad control of the black leaf spot disease infecting palasan (Calamus merrillii Becc.) plantation at Provident Tree Farm Inc. in Bo. Zillovia, Talacogon, Agusan del Sur was studied. Isolation of the microorganism in potato dextrose agar (PDA) medium under laboratory condition failed, an indication that the primary causal organism is an obligate parasite. However, the pathogenicity test using the leaf clip method showed similar signs and symptoms of infection as those observed in naturally infected leaves. The black leaf spot disease resembled the tar spot disease caused by Phyllachora sp. on other host species. The pattern of infection was hardly obsessed. Among Daconil, Benlate and Captan fungicides, Daconil appeared to be promising in controlling the disease.

Source or Periodical Title

Sylvatrop: the technical journal of Philippine Ecosystems and Natural Resources

ISSN

0115-0022

Volume

6

Issue

1

Page

1-14

Document Type

Article

Frequency

semi-annually

Physical Description

maps; figures; tables

Language

English

En – AGROVOC descriptors

PLANT DISEASES; FUNGICIDES; CHEMICAL CONTROL; FUNGAL DISEASES; PATHOGENICITY

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