51�Թ�

Paul De Ley, an associate professor of nematology at UCR, confirmed its fit as an early nematode and ruled out other worm types.

"Dogs can die from this infection, so we are hoping to raise public awareness that it's there," said UCR nematology professor Adler Dillman.

"Twenty-four hour rhythms in physiology and behavior are commonly observed in organisms from bacteria to humans, but observations of 48-hour rhythms in nature are rare," said Professor Joanna Chiu, chair of the Department of Entomology and Nematology at UC Davis and an expert on circadian rhythms, who was not involved in the work.

When it comes to roach population growth, it's hard to say how many roaches there are in any given geographic area, said Dr. Phililp G. Koehler , University of Florida Professor Emeritus of Entomology and Nematology.

They are also becoming an issue for agencies in charge of managing the hundreds of miles of canals that channel water throughout South Florida, said William Kern, an associate professor in the entomology and nematology department at the University of Florida’s Fort Lauderdale Research and Education Center.