Role of insects in secondary spread of pearl millet ergot

Verma, O.P. and Pathak, P.V. (1984) Role of insects in secondary spread of pearl millet ergot. Phytophylactica, 16 (3). pp. 257-258.

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In a 3-year survey of ergot-affected fields of pearl millet (Pennisetum americanum), 8 species of insects were found to be contaminated with conidia of Claviceps fusiformis. Apis indica [A. cerana indica] and Tabanus rubidus carried the heaviest conidial loads. In laboratory studies, the percentage transmission of the disease was 92.59 for A. c. indica, 68.00 for Dysdercus cingulatus, 58.33 for Monomorium salomonis, 95.23 for Musca domestica, 75.00 for Syrphus confractor [Metasyrphus confractor], 76.66 for T. rubidus, 30.76 for Vespa orientalis and 19.00 for V. tropica.ADDITIONAL ABSTRACT:Insects present in fields of pearl millet (Pennisetum americanum) affected with ergot caused by the fungus Claviceps fusiformis were collected and identified (India, 1980-82). Conidia were found on all 8 species that were common on the crop; the honeybee, Apis cerana, and the fly, Tabanus rubida, carried the greatest numbers. In transmission tests, all species transmitted the disease to healthy earheads, the most efficient carriers being A. cerana and the fly Musca domestica. [No observations on foraging by A. cerana are given.]

Item Type: Article
Author Affiliation: Department of Plant Pathology, SKN College of Agriculture, Sukhadia University, Jobner 303329, India
Subjects: Plant Protection > Pesticides
Plant Protection > Pests
Divisions: Millet
Depositing User: Ms K Syamalamba
Date Deposited: 30 May 2012 04:56
Last Modified: 30 May 2012 04:56

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