Jun 24, 2008 Reuters
Cockroach bait kills multiple roach groups: study
A single dose of a new
insecticide killed cockroaches that ate it and other roaches that
fed off their bodies, U.S. researchers said on Monday in findings
sure to cheer urban dwellers everywhere.
"Our findings are exciting because cockroaches are difficult
to control since they multiply so rapidly," said Grzegorz
Buczkowski, an entomology professor at Purdue University in
Indiana, whose study appears in the Journal of Economic
Entomology.
"They are especially bad in urban housing, and they can
cause health problems," Buczkowski said in a statement.
Cockroaches are hard to kill because they lurk in dark places,
coming out at night to feed. When they find a cozy spot to live,
they leave behind a chemical trail of pheromones in their feces
to attract other cockroaches.
Buczkowski's team studied German cockroaches, a shiny,
orange-tinged roach that is among the most common household
species in the United States. The team was testing the
effectiveness of Du Pont Co's Advion Cockroach
Gel, which uses the chemical indoxacarb as its active ingredient.
DuPont Advion® cockroach gel bait is a new, high-performing bait product targeting all pest species of cockroaches.
The gel, besides killing
the adults that ate it, had a kill rate of 76 percent when the
youngest roach nymphs, known as instars, were infected with the
poison.
The poison also killed 81 percent of adult male cockroaches that
fed on the bodies of the roach nymphs. All the roaches were dead
within 72 hours of their first exposure to a cockroach poisoned
with indoxacarb.
The Purdue Industrial Affiliates Program and DuPont funded the
study. Buczkowski has no financial ties to DuPont or its
insecticide.
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