Small Grains, Phragmites and Melaleuca

In 1992 and 1993, aerial applications using the new THINVERT Nozzle were made to forests in ME and VA. In addition, Harmony was applied to winter wheat in DE, and ARSENAL to Phragmites in DE, at spray volumes of 1 to 2 gal/A, with THINVERT treatments controlling target vegetation better than conventional treatments, and with no off-target injury.

Aerial applications of Rodeo, ARSENAL, and Garlon 3A in THINVERT carriers were made to control Melaleuca and other aquatic and marginal weeds in Everglades National Park in February 1993. These extensive trials were sponsored by the National Park Service and The South Florida Water Management District. Initial results show good control from all THINVERT treatments. Evaluation in 1994 showed THINVERT applications to be equal to or better than conventional applications in water at higher spray volumes.  

Sugarcane

Commercial aerial applications of furadan for borer control in sugarcane in LA were four times as effective using THINVERT as a carrier compared to a water carrier. Both sprays used THINVERT Aerial Nozzles. Spray volume was 1 gal/A. The high toxicity of furadan makes targeting very important, both for humans and fish. Successful work was also completed with Guthion which is also highly toxic to fish.

Other Applications

ACCROBE, an AMCY bacterial mosquito larvicide containing BT, was applied through a Scorpion Mistblower and a cold-fogger in a THINVERT carrier. Evaporation of these fine particles makes deposition difficult with conventional applications. THINVERT as a carrier prevented droplet shrinkage from evaporation and improved target deposition. Droplets settled to the vegetation instead of shrinking and moving off into the atmosphere. Initial studies by Clemson University indicate that potency of the ACCROBE in THINVERT sprays was not reduced. Additional efficacy studies will be conducted in 1994.

In August 1992, the THINVERT Application System was demonstrated to Cyanamid Japan personnel at the Talhara Research Facility in Japan. Additional demonstrations were held when many of the same people attended a return session at Waldrum's facility in Doylestown, PA in early 1993. Cyanamid Japan officials felt that the System had much potential for applications to crops and industrial sites in Japan and Southeast Asia. They have made arrangements to purchase THINVERT Nozzles and THINVERT formulations.