| Autor: |
PFIRTER, HANSPETER, AMMON, HANS-ULRICH, GUNTLI, DANIEL, GREAVES, MICHAEL, DEFAGO, GENEVIEVE |
| Zdroj: |
Integrated Pest Management Reviews; Jun1997, Vol. 2 Issue 2, p61-69, 9p |
| Abstrakt: |
The bindweeds Calystegia sepium and Convolvulus arvensis aredifficult to control chemically. Calystegia sepium is often aproblem in maize or in vineyards, while C. arvensis is animportant weed of cereals. The biological control of these weedswith insects or fungal pathogens has been investigated since1970. More than 600 fungi collected in countries throughoutEurope have been isolated in our laboratories. The isolates withthe highest and most stable pathogenicity against bindweed belongto the genus Stagonospora. In a field trial in maize in 1995, oneof these Stagonospora isolates stopped the increase of groundcoverage by the bindweeds. In response to public concern aboutenvironmental problems caused by modern agriculture, new croppingsystems are being developed. Underseeding maize with a livinggreen cover achieves good control of a large spectrum of the weedflora typical of conventional tillage systems. However, C. sepiumand C. arvensis remain as problems. The research reported showsthat C. sepium is partly suppressed by the green cover, butescapes control by climbing the stems of the maize plants.Therefore, the application of spores of Stagonospora sp. in amaize field underseeded with a living green cover may allow alarge or a complete reduction of the herbicide input and promotea more sustainable agriculture [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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