Popular insecticide detected in suburban stream beds
...ers have detected high concentrations of a popular insecticide in suburban stream sediments, raising concerns about its effects on aquatic life. Pyrethroids, the active ingredient used in most home and garden insecticides, have been on the market for years. Although the compounds are considered potentially less......." Since widespread adoption of Bt cotton in 1997, insecticide use on Arizona's cotton crops is down 60 percent, said Tabashnik. The reduction in chemical pesticide use saves growers about $80 per acre. According to the Arizona Agricultural Statistics Bulletin, the value of Arizona's cotton crops for 2004 was es...Vineyard weeds found to host Pierce's disease of grapes
...g populations of the insect vector, either through insecticide sprays or habitat modification to remove insect breeding host plants. Our study reinforces the need for weed control in irrigation ditches and roadsides adjacent to vineyards, in regions with chronic Pierce's disease and established populations of sh...Animal model of Parkinson's disease reveals striking sensitivity to common environmental toxins
...king sensitivity to the herbicide paraquat and the insecticide rotenone. The two studies were performed with the fruit fly Drosophila, a widely used model organism for studies of human disease, and shed new light on biological connections between inherited and sporadic forms of Parkinson's disease. The work is r...Fungus helps tall fescue choke out native plants
...the unfenced and fenced plots were sprayed with an insecticide to suppress insect herbivores. Tall fescue progressed most slowly in plots that were both sprayed and fenced, constituting about 50 percent of live plant mass in the plots by study's end. In unfenced and unsprayed plots, tall fescue faired best, cont...Novel compounds show promise as safer, more potent insecticides
...t synthetic compounds designed to activate a novel insecticide target called the ryanodine receptor, may also help tackle the growing problem of insecticide resistance, the researchers say. They described their studies today at the 230th national meeting of...University of Nevada, Reno research team discovers hormone that causes malaria mosquito to urinate
...in Palo Alto, Calif. that developed methoprene, an insecticide that halts the maturation of insect larvae to adul...devastate crops. "It's not a great way to sell an insecticide to a farmer," Schooley said. "Most money in pesticide development is in making insecticides for pest...In some cases, genetic resistance takes on a life of its own
...ve the genetic landscape once the use of a drug or insecticide is suspended or withdrawn. But emerging research s...d. This idea suggests that if we stop spraying one insecticide and start spraying another, resistance to the first should decline as a result of the decreased fitn...DDT-resistant insects have additional genetic advantage that helps resistance spread
...umber of different compounds, so spraying with one insecticide can unexpectedly increase resistance to newer compounds subsequently introduced to try and overcome resistance. The World Health Organization estimates that during the period of DDT use, approximately 25 million human lives have been saved. Today py...Virginia Tech wins $2.7 million grant to protect people from malaria
...iology and Ecology. The project aims to develop an insecticide to use on nets suspended over beds where people sleep. The insecticide needs to have two specific characteristics. It will be targeted specifically to the mosquito species...Researchers determine temperature-driven rootworm forecast
...rn rootworm management decisionsby showing when an insecticide application will do the most good, Michelssaid. The model has been incorporated into the North Plains PET weatherstation network. Daily model output can be accessed by going to http://amarillo2.tamu.edu/nppet/station.htm , the weather station netw...Plan to protect soybean crop is ready
...0 acres in Virginia had to be treated in 2004 with insecticide to prevent losses, said Ames Herbert, Virginia Cooperative Extension entomologist at the Tidewater center. The monitoring system will look for both problems. "Scouts" will work in 80 to 100 Virginia fields from June to September to provide the alert...Bugs, even 'bad' ones, can be educationally beneficial, new book says
...aced 60,000 fake cows made of cloth and steeped in insecticide on cattle ranches. Instances of infections dropped from 10,000 to 50 per year. These findings were reported in the journal Science in 2001. Not only do insects interact with people, some insect species share characteristics with humans, Waldbauer sai...Insecticide resistance in mosquitoes being studied
... Services Department are working together to study insecticide resistance in mosquitoes and develop a strategy to...s the southern house mosquito was resistant to the insecticide Malathion being used. The district switched to pyrethroid pesticides to control the pests. In......he state, we don't have a clue as to what level of insecticide resistance exists," Olson said. "It's a bad time to find out you've got it (resistance) in the middle of a disease outbreak. It is better you take care of it well in advance." The Experiment Station has developed a Mosquito Control Research...