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| Getting rid of condensation water | |
| A basic problem of greenhouses, particularly where there is no heating, is the control of high levels of relative humidity that can develop during the night. This often leads to condensation on the inside surfaces and encourages the spread of fungal disease. Condensation on green house surfaces during the day can lead to a notable reduction in the amount of light available to the plants. A Hybrid Dehumidification System for Glasshouses. ISHS Acta Horticulturae 797: International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions. www.actahort.org In the presence of sunshine, these droplets have the effect of a "magnifying glass" and can cause serious burnings to the crop. Finally, when the droplets fall down onto the leaves they can cause damage to the tissue and aid the spread of diseases such as Botrytis and Cladosporium. The use of dehumidifyers, sometimes together with heat pumps guarantee that during the night, the temperature of the inside surfaces of the green house and the leaf surfaces of the plants, does not fall below the condensation point. An alternative solution is the application of chemicals such as DropSTOP from the French company Sudlac. By applying a thin coat of DropSTOP on the inside of the greenhouse, the translucid product will drain off the water and prevents the negative aspects of condensation droplets. The product is non phyto-toxic and does not damage the greenhouse surface. For further information: Sudlac. Fax 0033 476093415, E-mail:sudlac@sudlac.com www.sudlac.com |
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