Sentences with phrase «called pyrethroids»

Due to a high demand for pyrethrins, scientists have mastered synthetically made pyrethrin compounds (called pyrethroids).

Bedbugs have become a big problem in U.S. hotels and homes over the past decade, in part because they are resistant to a widely used class of insecticides called pyrethroids.

The issue we have with many of the over-the-counter products is that many are what we call pyrethroids, or synthetic pyrethrins.

Not exact matches

Pyrethroids also have a trait scientists call excito - repellency: They stimulate mosquitoes to leave the net.

Some countries have switched from pyrethroids to an organophosphate insecticide called actellic.

The researchers eventually chose a net that combines pyrethroids with a compound called pyriproxyfen, which prevents mosquitoes from producing fertile eggs.

Also, an insecticide called fipronil has partially replaced pyrethroids for controlling termite and ant infestations in some areas.

One possible reason is the growing use of a pyrethroid called cypermethrin, which both the SEPA and the Environment Agency believe is more toxic.

So what is the common denominator in all of these calls — PYRETHROIDS!

While on phones last evening, I received 4 calls involving cats and pyrethroids.