larvacide การใช้

• To kill the eggs, highway crews in Vicksburg, Miss ., lace ponds and ditches with larvacide pellets.
• "Larvacides are not totally safe for the environment, but they are less damaging to human and animal health.
• Helicopters may be used to deliver the larvacide to water sources in Staten Island that are not otherwise easily reached.
• Several agencies as well as environmentalists believe the application of larvacides presents the best way of quashing or containing the threat of West Nile.
• In the early 1970s planes spraying for the spruce budworm used the airstrip to fill up with larvacide, fuel, and take off.
• Included in the plan is mosquito surveillance and the application of larvacide in 20 towns along a 62-mile stretch from Greenwich to Madison.
• He said the area around the Palmer House was treated with larvacide this week, when it was still suspected that the woman had the new strain of virus.
• This year, too, many communities revived mosquito control efforts, including widespread use of larvacide, that had ended 10 or 20 years ago for lack of concern.
• The larvacides, which would be deposited in selected catch basins in each of those cities and towns, would kill up to 90 percent of the mosquitoes before they hatch and can transmit the virus.
• West Nile control is achieved through mosquito control, by elimination of mosquito breeding sites such as abandoned pools, applying larvacide to active breeding areas, and targeting the adult population via lethal ovitraps and aerial spraying of pesticides.
• The city's $ 3.5 million abatement plan calls on health workers to trap and test mosquitoes for the virus, apply larvacide in their breeding grounds and step-up the use of sentinel birds to detect mosquito-borne viruses.
• Giuliani and City Health Commissioner Dr . Neal Cohen said the new assault on the disease would include spraying of a short-lived insecticide by trucks and " larvacide " pellets or granules dropped into selected pools, catch basins and other standing-water sites where mosquitoes can breed.
• He said the " bacterial larvacide " is designed to kill the mosquitoes where they breed but is non-toxic to fish and other life . " It can be very safely applied in ponds, lakes, streams and other wetlands and environmentally sensitive areas without concern, " he said.
• The fogging airplanes in the Florida Keys ( which used to buzz my vacation home a little too low for my comfort ) also use ULV fogging equipment, but spray with a larvacide named Bacillus thuringiensis subspecies israelensis, or Bti, to kill the three types of mosquitoes plaguing the area, including the black saltmarsh which bites day and night, and breeds in swarms.