Rated among the top three reasons for cullage, solar stress can damage the apple surface with white, yellow, bronze, and brown discoloration, and overheating can dramatically decrease internal fruit quality. Reducing the negative effects of the sun on apples has been shown to significantly improve overall manifest.
Based on Advanced Reflectance Technology™ (ART™), Purshade has been engineered to prevent solar damage and heat stress by reflecting harmful wavelengths of solar radiation such as ultraviolet (UV) and infrared (IR) away from the plant, while still allowing transmission of sufficient sunlight for photosynthesis
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The chart above shows percent decreases in total sun damage on multiple varieties of apples treated with Purshade around the world. Purshade is proven to significantly reduce the effects of harmful solar radiation on crops while minimizing heat stress. Specifically, apples treated with Purshade show dramatically increased quality with improved size, color, and weight. In the example below, the apples on the left and right have been treated with Purshade, while the two apples in the middle have not.
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| Source: Grobe Fruit Farm – Elyria, Ohio. 2010. |
Developed by the experts in solar stress crop protection, the calcium-based Purshade family of products is easy to mix, apply, and remove; are highly compatible with other products; and can be applied with standard spray equipment. Purshade stands as the most efficient and least labor-intensive solution to solar damage on crops. As growers in the globe report, Purshade products are proven to promote healthier plants with decreased heat stress and UV burn while reducing labor costs and increasing crop yields.



