Planning could preserve urban forests for future enjoyment
..., however both these species are subject to recent insect and disease infestations. Notably absent were American chestnut and American elm, former dominant species that have been decimated by disease throughout the United States. Thirty sample plots were counted for saplings and seedlings in each forest, o...Jonathon Knight receives ASM Communications Award
...t wrote about Wohlbachia, bacteria that can infect insect species and convert males to females for their own reproductive purposes. Wohlbachia transmit themselves through the ovaries, so to them males are useless. Some force sex changes on the males they infect, while others kill them in the egg to leave m...Insect yields clues to evolution of species
...e very good vision and are visual predators. The insect exhibits two genetically determined color patterns. The unstriped insect is more commonly found on the plant Ceanothus spinosus (commonly called blue lilac) and a striped de...Recombinant Protein Expression Lab established at CU
...ic resonance (NMR), using bacterial (E. coli ) and insect cell systems. Subsequently, as rational design ide...w Cornell facility is to move beyond bacterial and insect cell-based production systems to the much more difficult -- but potentially useful -- process with m...Mosquitoes repelled by tomato-based substance
... commonly used in insect repellents...tance as an insect repellent to Insect Biotechnology Inc., a Durham company that ...Lakeshore development affects birds
... Without birds to keep them in check, plant-eating insect larvae, such as gypsy moths and tent caterpillars, could cause serious damage to trees. What can lake-dwellers do? Keep lawns small, and encourage native vegetation, Lindsay suggests. And keep pets away from areas where birds may be nesting or feed...Study offers a rare view of how species interactions evolve
... said this was due to the presence of enough other insect pollinators to swamp the beneficial effect of pollination by Greya. "The moths depend on the plants for food, but the plants are not affected either way, because the copollinators are effective and the moths are not abundant enough for their feeding...Research shows how pollutants affect tree growth
...t ecosystems," says Richard Lindroth, a UW-Madison insect ecologist. "But this study is the only one in whic...th says the findings are complex because different insect and tree species respond differently. For example, forest tent caterpillars, a major outbreak specie...Independent study: DEET products superior for fending off mosquito bites
CHAPEL HILL In a new comparative study of insect repellents containing the chemical commonly known ...oducts that were readily available to consumers as insect repellents and tested them carefully, repeatedly and in a way that eliminated as many variables as w...Deformed frogs form when parasites and pesticides combine
...n household pesticide that also is used to control insect pests in agricultural fields, and Esfenvalerate--a synthetic pyrethroid pesticide. "Synthetic pyrethroids have become increasingly popular during the last couple of years because they are not very toxic to birds and mammals; however, they are highly...Deformed frogs form when parasites and pesticides combine
...n household pesticide that also is used to control insect pests in agricultural fields, and Esfenvalerate--a synthetic pyrethroid pesticide. "Synthetic pyrethroids have become increasingly popular during the last couple of years because they are not very toxic to birds and mammals; however, they are highly...New drug discovery spin-off from CSIRO
...cies on earth but there are more than four million insect species. Microbial diversity is also huge, althou...es the company to screen CSIRO's unique library of insect extracts and develop the novel drug leads through the drug discovery pipeline," Dr Garrett said. "C...Immune system component found common to both humans and worms
...ists have been studying it in the laboratory using insect models. This new report gives researchers another...or innate immunity will not replace the utility of insect models. "Insects have been very important in providing insights into innate immunity," he says. "W...Tropical forests under surveillance
... important role in seed dispersal, pollination and insect predation in tropical forests and an understanding...tural Resources Institute's Radar Unit, to monitor insect migration and behavior in the British Isles. While cluttered tropical environments may be less amen...Genetically modified crops may pass helpful traits to weeds, study finds
... without the gene. These plants also had far less insect damage, suggesting that that t... Colorado, most likely due to differences in insect pressure, Snow said. If a wild relative grows near a crop p...Plant detectives seek sources of invasive trees
...root. The loss of native plants also decreases the insect and bird biodiversity. Schaal's graduate student, John Gaskin, has used DNA sequences to identify which species are here and to document hybridization. Their DNA analyses also help them pinpoint where the plants may have originated in Eurasia. Earl...Report focuses on the science and safety of genetically modified crops
...report says, have many positive effects. Reducing insect damage with insecticidal proteins reduces fungal toxins in the food supply, while better crops improve farmers' livelihood. Replacing chemical pesticides has reduced toxic hazards to the environment and to farm-workers. Yet concerns related to Bt cro...Researchers aim to control treatment-resistant head lice
...in 1973 because of concerns about human health and insect resistance but it is still used in some parts of t... stay open too long. This apparently paralyzes the insect so it is unable to eat, although no one is sure of the actual cause of death, Clark noted. But in pe...New cancer drug possible from compound found in common food
...d survival. In the studies, genetically engineered insect cells were used to produce p110delta and a standard biochemical test was conducted to establish if phosphates had indeed attached to lipids. Interestingly caffeine and the closely related molecule theophylline blocked this process, providing compelli...... finally becoming bedridden," said James Carey, an insect demographer at the University of California, Davis. Carey is the principal investigator and co-author on the study, which will be published in the Aug. 22 issue of the British journal Proceedings of the Royal Society: Biological Sciences. "Virtually ...