[Back Talk]

Features - Industry Events

January 8, 2009

A missed point on transfer

Your story on the transfer effect of insecticides in pest management (August 2008 PCT, “Talking Transfer”) was very interesting, but I felt it missed an important point. While the overall article addressed the transfer effect on a wide range of insects, I felt it did not stress ant control enough. Transfer effect is a vital component to most real-world ant control programs, whether using baits or perimeter sprays.

The short section on ants focused mostly on perimeter sprays and didn’t highlight the effectiveness of ant baits. Due to the social nature of ants and the fact that most ants share their food through a process called trophallaxis, ant baits are very effective. Attractive bait matrices like those used in Whitmire Micro-Gen’s Advance line of ant baits, along with slow-acting toxicants such as abamectin and boric acid, have been used successfully for many years.
Regarding transfer effect on cockroach control, Whitmire Micro-Gen’s Advance and Avert products have also demonstrated secondary kill similar to most other roach baits. However, we feel the transfer effect in cockroach control is less important for a couple of reasons. Cockroaches do not share their food like ants and, therefore, do not actively transfer the bait. Also in real-world conditions, there are many competing food sources, and the attractiveness of the bait matrix is far more important than the transfer effect.

Nick Tresslar
Marketing Manager
Whitmire Micro-Gen Research Laboratories

A career highlight

Editor’s note: Don Reierson was not able to attend the Crown Leadership Awards ceremony at PestWorld in October 2008. He had been diagnosed with a blood clot in his leg, and was grounded from air travel.

Receiving this award is one of the highlights of my career. I am honored and humbled to be among this year’s remarkable class of recipients.

My career in urban entomology research has been enormously interesting, exciting, rewarding and fun. I treasure the opportunities I have had and the friendships I have made. I would particularly like to acknowledge two remarkable individuals I’ve had the good fortune to work with: Dr. Walter Ebeling and Dr. Michael Rust.

Beginning in 1963 with Dr. Ebeling and continuing since 1975 with Dr. Rust, I have been given research opportunities and responsibilities beyond my dreams. I am truly indebted to these two men for their leadership and for their faith in my abilities. The example they set, in demanding hard work, excellence and ethical standards in everything we do, has had a profound affect on my career, and on my life.

I offer my congratulations to all of the 2008 Crown Leadership Award winners. It is an honor to be among such a distinguished group.

Hopefully my recovery will be complete in January, and then we’ll have the opportunity to meet somewhere around the country in 2009. In the meantime, our research on behalf of the industry continues.

Donald A. Reierson
Researcher, Department of Entomology
University of California-Riverside
Riverside, Calif.