Coverage Articles

When warm air is cooled, it loses some of its moisture-holding capabilities. This change often occurs at night, when plants (and other objects) cool. Once the temperature of the surface of the leaves, for example, drops below the dewpoint, it causes water to condense, ...Read More

Some pesticide labels require or prohibit certain droplet sizes to reduce the potential for drift. But, even when labels are silent about size restrictions, operators should be aware of the potential for droplet size to affect coverage. In the case of airblast, droplets should ...Read More

This article was written with information from George Hamilton, Field Extension Specialist with New Hampshire Cooperative Extension, and from Dr. Ben Werling, West Michigan Vegetable Educator with Michigan State University Extension. Commercial sweet corn growers must use spray application equipment capable of depositing spray ...Read More

This article continues from Part 1. Droplet size Droplet size influences droplet behaviour. The following table lists the pros and cons to changing droplet size when overall spray volume (e.g. L/ha) remains constant. Relative Spray Quality Pros Cons Coarser Droplets Lower drift potential because ...Read More