The invention relates to the cultivation of insect (840) pollinated plants (710, 711) in a greenhouse (700, 701 and 802) environment. In more particular, the invention relates to a lighting device and a method of illumination designed to enhance insect pollination in plants, such as the tomato. The best mode of the invention is considered to be the use of a LED (101, 102, 103 and 104) lighting device having emission peaks (401, 402, 403, 410 and 510) matching the photosynthetic relative absorption peaks of green plants, and the relative reflectance peaks of flowers of plants being cultivated and the relative sensitivity peaks of the insect's vision being used in the pollination. The inventive lighting device and method reduces insect mortality and increases pollination efficiency, photosynthetic growth and thereby increases the productivity of plant cultivation.
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