The May issue on No-Till Farmer offered a look at the basic characteristics of adjuvants to help you make more informed purchase decisions. Another good source is the pocket-sized 8th Edition of the Compendium of Herbicide Adjuvants, released in January by Bryan Young, a weed scientist at Southern Illinois University.It is available for $3.Visit www.siu.edu for an order form.

Ag chem dealers are the best local sources of information about adjuvants being used successfully in your area. Below are brief descriptions from adjuvant producers that replied to our request for newer product information. Visit their Web sites for additional information. The list does not include all manufacturers or new adjuvant choices.

Agriliance (www.agriliance.com). New: Powerlock, which is successful in depositon because of its ability to increase droplet speed and coverage of lower canopy leaf surfaces.With the addition of PowerLock, the majority of spray droplets are maintained between 250 and 350 microns. Alliance can be added to the tank mix with PowerLock as an AMS replacement. Contact: Bob Herzfeld (bwherzfeld@agriliance.com).

AGSCO (www.agscoinc.com). New: SurfMAX, a specialty water conditioner and pH acidifier for glyphosate tank mixes. SurfMAX improves performance of certain herbi- cides, such as glyphosate, preventing antagonism from hard water ions and other impurities. Contact: Mike Dietrich (michaeld@agscoinc.com).

Growmark Inc. (www.growmark.com). New: Replace, a water conditioning agent for use with glyphosate products in

place of AMS. Replace offers a low inclusion rate, high perfor- mance and favorable cost. Two years of university trials with giant ragweed and waterhemp have demonstrated that…