Author：Jin-Hsing Huang^1,2

Abstrct：

    The so-called crop production under structure refers to the cultivation of crops in the simple type structures, such as insect nets, advanced, such as greenhouses, high-level, such as closed artificial light plant factory. The purposes of crop cultivation under structure are not only to avoid the impact of adverse environment and climate but also to reduce the pest damage, thus the production and quality of crop products may be improved. During the cultivation process, most of the pathogens can be isolated outside the structures or difficult to spread under the structures, but it is very difficult to completely keep the pathogens out of the structures. Factually, a small number of pathogens will access into the greenhouses and cause severe diseases. Occurrence of plant diseases may be comparatively less in greenhouses than that in fields; however, sometimes some diseases happen more severe in greenhouses. It is not as we imagine that the plant diseases will disappear or diminish under structures. For disease management, it is important to realize what kind of diseases will happen on the crops cultivated under structures, and then to avoid the pathogens coming into structures accordingly. Once the diseases break out inside the structures, it is also important to survey the pathways of pathogen transmission. Therefore, the disease can be controlled by changing the cultivation processes, adjusting greenhouse condition, spraying chemicals and/or biocontrol agents and/or safety plant protectants to mitigate the yield loss.

Key words: crops cultivation under structures, disease management.

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¹ Associate Researcher, Plant Pathology Division, TARI, Taichung, Taiwan, ROC.
² Corresponding author, e-mail: jhhuang@tari.gov.tw; Tel:886-4-23317509.

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