Integrated Crop Management News

Document Type


Publication Date



Recent rains over much of the state are encouraging crop and weed growth and pesticide applications will be a primary focus as soon as fields are suitable. In a May 15, 2009 ICM News article, management factors to reduce drift potential were reviewed, with special focus on the effect of droplet size and wind speed on physical spray drift. As daily high temperatures increase into the upper 70 to 80s degrees F range, mid-day relative humidity frequently drops below 50 percent. This article takes a look at the effect of temperature and humidity on pesticide drift.

Copyright Owner

Iowa State University



File Format





The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit