Purple-shaded glasses to spot garden trouble in advance

Clean Air Gardening sells this purple-tinted glasses that are supposed to help you identify unhealthy, chlorophyll-deficient plants before it's too late.

200803271421 The lenses block out the green reflected by chlorophyll in the healthy areas of your lawn and garden, causing those areas to show as black or gray. Any unhealthy spots, deficient in chlorophyll, will show up as pink, red or coral colors. It's the plant equivalent of full-body MRIs that detect problems before their symptoms surface.

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