Titre du document / Document title
Control of tar spot of maize and its effect on yield
Auteur(s) / Author(s)
BAJET N. B.
(1) ;
RENFRO B. L.
(1) ;
VALDEZ CARRASCO J. M. ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) International maize wheat improvement cent., 06600 Mexico, MEXIQUE
Résumé / Abstract
The tar spot disease complex of maize and the effects of fungicides on disease development were examined during the November-April 1988 cropping season in Mexico. The disease is caused by two fungi, Phyllachora maydis Maublanc and Microdochium maydis Muller & Samuels (teleomorph = Monographella maydis Muller & Samuels). The ascostromata of P. maydis can be observed on the lower leaves of the plants generally 10-18 days before silking. M. maydis, the second fungus involved in the complex, was found in infected tissues 10-14 days after ascostromata formation. Lesions subsequently enlarged, appeared water-soaked, and coalesced to cause leaf blight. Application of the fungicides captan, fenpropimorph, carbendazim, mancozeb, and propiconazole significantly reduced the area under the tar spot disease progress curves, which in turn significantly increased grain yields
Revue / Journal Title
International journal of pest management
ISSN 0967-0874
Source / Source
1994, vol. 40, n
o2, pp. 121-125 (21 ref.)
Langue / Language
Anglais
Editeur / Publisher
Taylor & Francis, London, ROYAUME-UNI
(1993)
(Revue)
Mots-clés anglais / English Keywords
Chemical control ;
Plant leaf ;
Lesion ;
Yield ;
Disease development ;
Symptomatology ;
Scanning electron microscopy ;
Treatment efficiency ;
Zea mays ;
Captan ;
Carbendazim ;
Propiconazole ;
Mexico ;
Systemic ;
Gramineae ;
Monocotyledones ;
Angiospermae ;
Spermatophyta ;
Central America ;
America ;
Mycosis ;
Infection ;
Pesticides ;
Cereal crop ;
Fungi Imperfecti ;
Fungi ;
Thallophyta ;
Imide ;
Fungicide ;
Benzimidazole derivatives ;
Triazole derivatives ;
Carbamate ;
Morpholine derivatives ;
Tropical zone ;
Mots-clés français / French Keywords
Lutte chimique ;
Feuille végétal ;
Lésion ;
Rendement ;
Développement maladie ;
Symptomatologie ;
Microscopie électronique balayage ;
Efficacité traitement ;
Zea mays ;
Captan ;
Carbendazim ;
Propiconazole ;
Mexique ;
Systémique ;
Phyllachora maydis ;
Microdochium maydis ;
Fenpropimorph ;
Mancozeb ;
Gramineae ;
Monocotyledones ;
Angiospermae ;
Spermatophyta ;
Amérique Centrale ;
Amérique ;
Mycose ;
Infection ;
Pesticide ;
Plante céréalière ;
Fungi Imperfecti ;
Fungi ;
Thallophyta ;
Imide ;
Fongicide ;
Benzimidazole dérivé ;
Triazole dérivé ;
Carbamate ;
Morpholine dérivé ;
Zone tropicale ;
Mots-clés espagnols / Spanish Keywords
Lucha química ;
Hoja vegetal ;
Lesión ;
Rendimiento ;
Desarrollo enfermedad ;
Sintomatología ;
Microscopía electrónica barrido ;
Eficacia tratamiento ;
Zea mays ;
Captano ;
Carbendazim ;
Propiconazole ;
México ;
Sistémico ;
Gramineae ;
Monocotyledones ;
Angiospermae ;
Spermatophyta ;
America central ;
America ;
Micosis ;
Infección ;
Plaguicida ;
Planta cerealista ;
Fungi Imperfecti ;
Fungi ;
Thallophyta ;
Imida ;
Fungicida ;
Benzimidazol derivado ;
Triazol derivado ;
Carbamato ;
Zona tropical ;
Localisation / Location
INIST-CNRS, Cote INIST : 16129, 35400005763041.0030
Nº notice refdoc (ud4) : 3371810
