The 18th congress of the israeli phytopathological society: February 3-4, 1997

Abstract:

In greenhouses, restricted ventilation and low light intensity-especially on the lower parts of the plants-result in a saturated atmosphere for too long periods each day and promote several fungal plant diseases such as gray, white and leaf molds and downy mildew. Manipulation of the greenhouse environment to prevent water-dependent pathogens can be practiced by farmers in nonheated greenhouses or in greenhouses partially heated during the cold winter. Alternative control methods are employed for the control of diseases promoted by high humidity. Some of the alternative control methods currently practiced in greenhouses are either passive or forced aeration, crop and growth medium management, coverage of the structure by films supplemented with additives-for the prevention of canopy wetness and to change light quality, and changing fertilization. This is in general effective against infection of leaves …

Año de publicación:

1997

Keywords:

Fuente:

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