The authors concluded that " Finding DDT resistance in the vector " An . arabiensis ", close to the area where we previously reported pyrethroid-resistance in the vector " An . funestus"
42.
The parasite recently started to acquire resistance to the two principal drugs, chloroquine and Fansidar, and the mosquito in some places is growing immune to a cheap and effective means of control, pyrethroid-treated bed netting.
43.
It is the most potent knockdown pyrethroid ( even stronger than pyrethrin II ) but it is relatively unstable, especially when exposed to light ( due to both the furan ring and the thiolactone group in the molecule ).
44.
Agency officials said that they prioritized the work based on preliminary indications of which chemicals were considered most toxic, and that the reassessment of the pyrethroid group _ which includes Anvil and Scourge _ is not scheduled to begin until 2002.
45.
Products such as Capture LFR ( containing the pyrethroid Bifenthrin ) and SmartChoice ( containing a pyrethroid and an organophosphate ) have been increasingly used to complement Bt crops that farmers find alone to be unable to prevent insect-driven injury.
46.
Products such as Capture LFR ( containing the pyrethroid Bifenthrin ) and SmartChoice ( containing a pyrethroid and an organophosphate ) have been increasingly used to complement Bt crops that farmers find alone to be unable to prevent insect-driven injury.
47.
A study comparing biological pest control and pyrethroid insecticide for diamondback moths, a major cabbage family insect pest, showed that the pest population rebounded due to loss of insect predators, whereas the biocontrol did not show the same effect.
48.
Application of pyrethrin ( or pyrethroid ) insecticides has been suggested'as a narcotic and a toxicant, which prevents the tick from injecting its saliva'but with this method the tick may remain physically attached for 24 hrs before it drops off dead.
49.
"' Gamma-cyhalothrin "'is a single stereoisomer of the pyrethroid insecticide cyhalothrin, and as such shares physical, chemical, and biological properties with both cyhalothrin and lambda-cyhalothrin, which are mixtures of 4 and 2 isomers respectively.
50.
But to treat them yourself, you can varnish or paint the wood ( if possible or practical ), and / or apply an insecticide to the holes; an insecticide such as a borax-based product, pyrethrin / silica arogel, or synthetic pyrethroid.
