How does plant sugar deter insects?

The only insect that can tolerate high plant sugar (above 10 brix or percent) is a grasshopper—all other insects cannot expel the gas created from digested sugars, and they would die if they consume a lot of sugar. As a natural defense, these insects can sense plants with high sugar content, and they instinctively avoid them and attack weaker plants with lower plant sugar that can be digested. With enough nutrients into the plant to produce 10 brix or more of sugar content, the plants will be safe from most insects.

How do you measure plant sugar?

We use a refractometer to measure plant sugar. To take the measurement, we cut open the plant near the base of the stalk or near the ear and squeeze some sap from the plant tissue on the refractometer lens. The meter measures the angle at which light bends (or refracts) as it passes through the sap, and this angle depends on the amount of sugar in the sap. Then, the meter converts this reading into a measurement of the brix or percent of sugar content in the plant. Digital or electronic refractometers are very easy to use, but we still prefer the older handheld refractometers because they stand up very well under field conditions. For the past several years, we have used the hand-held refractometers sold by Spectrum Technologies, Inc.

Can I split my applications of Chandler Foliar?

Yes, Chandler Foliar can be applied in more than one pass across the field. Although this is costly because it multiplies trips across the field, in some situations split-applications may be useful. For example, some farmers make two separate fungicide applications on corn, and they could include part of their Chandler Foliar treatment in each trip. The surfactant in Chandler Foliar helps the fungicide to stick on the plant leaves, and the other Chandler Foliar ingredients help generate faster plant growth.

Is there enough nitrogen in Chandler Foliar to count toward my Nitrogen fertility program?

Although Chandler Foliar is 7% nitrogen, the amount of the foliar product applied per acre is very small (6-12 ounces). So, the actual amount of nitrogen in a typical application is very small, and we recommend that this amount of nitrogen not count in fertility plans. Chandler Foliar helps crops make better use of applied nutrients, but it is not a stand-alone foliar fertilizer.

How does Chandler Foliar help glyphosate and other post-emergence herbicides perform better?

First, Chandler Foliar includes a natural surfactant that helps to spread the herbicide across the weed leaf surface, which improves the chemical coverage. Second, the biostimulants in Chandler Foliar work to open the pores (stomata) on the leaf surface, and more of the herbicide may be absorbed by the plant. Finally, some herbicides like glyphosate perform better when applied in an acidic (low pH) solution, and Chandler Foliar is naturally acidic (pH = 5.5). In addition to improving weed kill, Chandler Foliar also helps the crop to recover from any stress brought on by the chemical treatment.

Is Chandler Foliar a certified organic product?

No, Chandler Foliar is a natural product, but it contains inorganic urea as a mixing agent. To serve the needs of organic farmers, Chandler Organic was developed as a fully organic product that is registered with the Washington State Department of Agriculture (WSDA) Organic Food Program. Chandler Organic is a combination of Chandler Foliar and Soil that contains an organic mixing agent, so Chandler Organic may be used as a foliar or soil treatment at the same rates we recommend for Chandler Foliar and Soil applications.

After a few months of storage, there is a small layer of sediment or residue in the bottom of my Chandler Foliar container. Is the product still effective?

The ingredients in Foliar may settle out of solution after some time in storage, and this is the sediment on the bottom of the container. To return these elements to the solution, vigorously shake the jug for several seconds before use. For Chandler Foliar in 30 gallon drums, tip the drum on edge and shake it, or place the drum on its side and roll it on the ground to agitate the contents. In our warehouse, we use a stir attached to an electric drill to agitate the product in the drums. After the product has been thoroughly agitated, the sediment will return to the solution, and the product will remain to be fully effective.

For More Information

For more information on Chandler Foliar, call (309) 659-7773 or e-mail