Superior solar-stress protection designed to make every acre you plant yield the results you need

THE IMPACT OF SOLAR STRESS
Ultimately, every grower is looking for the same thing—better quality and improved yields. But this essential goal has become more difficult to realize. Human factors, such as urban sprawl and rapidly growing populations, are limiting the scope and location of farming operations. Environmental conditions are worsening as well, such as the widespread climactic changes that have led to increased levels of ultraviolet (UV) and infrared (IR) radiation. The combination of these factors—commonly referred to as solar-stress conditions—negatively impact plant life and can in turn negatively impact your bottom line through:

Reduced marketable yields–Solar stress can reduce the marketability of your crop through sunburn
and sunscald.

Quality degradation–Even under relatively mild conditions, heat stress can reduce the quality of the crop, resulting in inconsistent intensity and coloring of the fruit.

Increased water requirements–Plants need to make efficient use of available water to optimize growth, but under solar-stress conditions, water is used primarily for cooling, reducing maximum yield and quality potential.
With the availability of ideal agricultural land dwindling and environmental conditions worsening, improving your crop’s productivity regardless of the location is becoming more and more important. That’s where Purshade™ can help.

THE PURSHADE ADVANTAGE
Purshade offers a safe, science-based solution designed to make every acre you plant yield the results you need. Unlike other products, Purshade has been engineered specifically to reduce solar stress. Purshade takes advantage of high-quality, microcrystalline calcium carbonate to prevent both the sunburn-induced discoloration caused by UV radiation and heat stress–induced necrosis caused by damaging IR radiation.

With the Purshade sun-defense formulation, your produce will grow shielded by an even film that provides superior protection before harvest and can be easily removed during post-harvest processing. With Purshade protection, your crops will have the advantages of increased quality, better yields, and superior water utilization. But the best effect of all will be on your bottom line. By improving the efficiency of every acre you grow, you can expect a much better return on your investment.

EASY APPLICATION
With the easy-to-use Purshade liquid formula, applications are straightforward and can be made with typical pre-harvest sprayers. Purshade works with standard nozzles and is compatible with most fungicides and insecticides. This capability means you can get the protection of Purshade without additional equipment or extra trips through the field.

UNBEATABLE PROTECTION
Purshade offers an SPF rating 10 times higher than that of traditional alternatives.

EASY ON ... EASY OFF
The suspension concentrate formulation of Purshade creates an even film that is water-fast at neutral pH and, unlike kaolin products, it washes off easily during typical post-harvest cleaning.

With Purshade, you get the protection you need before harvest without the residue that kaolin-based products can leave after harvest.

ENHANCED MARKETABLE YIELD
Studies have shown that Purshade sunshield technology can increase the overall quality of the crop through dramatic decreases in sun damage. In addition, with the IR-reflecting ability of Purshade, canopy and fruit temperatures are reduced, which allows your fruit to continue growing at higher ambient temperatures, resulting in higher yields.

Honeydew Melon Grower, Northern California. Purshade applied at 1.0 gpa July 2008; Harvested August 2008. Acreage protected by Purshade yielded 20% more cartons than unprotected. ROI calculated at $3/carton with single application of Purshade.

With Purshade, the benefits go straight to your bottom line. By improving the efficiency of every acre you grow, you can expect a much better return on your investment.

IMPROVED WATER UTILIZATION EFFICIENCY
To optimize growth, plants need to make efficient use of available water, but under solar-stress conditions, water is used primarily for cooling, reducing maximum yield and quality potential. Purshade, with its ability to reflect IR radiation, helps cool the plant, thus allowing photosynthesis to continue under solar-stress conditions. The result is a crop that continues to maintain a low Crop Water Stress Index (CWSI), allowing more water to be available for maximizing yield and quality potential.

With Purshade, more efficient water use, greater yields, and better quality is just a spray away.

START EARLY WITH THE PROTECTION OF PURSHADE
The only way to ensure your produce is protected from the first solar-stress event through the last is to start your Purshade applications early before damage occurs. By starting early, and reapplying Purshade as directed, you can increase both the quality and the marketable yield of your crops.

Call Purfresh at (510) 580-0700 or ask your dealer about Purshade and take home the best in scientifically engineered sun protection today.

Key Benefits

Excellent solar-stress protection

• Reflects both UV and IR radiation
• Allows photosynthetic light to pass through to the plant
• Provides SPF rating 10 times that of competitive products

Increases quality and marketable yield

Reduces plant surface temperature

Calcium carbonate based

Optimum microscopic particle size

• Allows improved suspension
• Creates millions of micro-mirrors for improved reflectance

Easy-to-use liquid formulation

• Can be aerially applied
• Uses standard nozzles for application
• Is compatible with many products
• Forms an even film for excellent distribution and coverage

Easy to remove and wash off