Word: entomologists
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...Even more worrisome are ecological concerns. In 1999 Cornell University entomologist John Losey performed a provocative, "seat-of-the-pants" laboratory experiment. He dusted Bt corn pollen on plants populated by monarch-butterfly caterpillars. Many of the caterpillars died. Losey himself is not yet convinced that Bt corn poses a grave danger to North America's monarch-butterfly population, but he does think the issue deserves attention. Others agree. "The problem with transgenics is the risks and hazards involved," says Ashish Kothari of Kalpavriskh, an Indian environmental group working to preserve the country's biodiversity. "We still don't know...
...That is beginning to happen, although?contrary to expectations?the reports coming in are not that scary. For three years now, University of Arizona entomologist Bruce Tabashnik has been monitoring fields of Bt cotton that farmers have planted in his state. And in this instance at least, he says, "the environmental risks seem minimal, and the benefits seem great." First of all, cotton is self-pollinated rather than wind-pollinated, so that the spread of the Bt gene is of less concern. And because the Bt gene is so effective, he notes, Arizona farmers have reduced their use of chemical...
Even more worrisome are ecological concerns. In 1999 Cornell University entomologist John Losey performed a provocative, "seat-of-the-pants" laboratory experiment. He dusted Bt corn pollen on plants populated by monarch-butterfly caterpillars. Many of the caterpillars died. Could what happened in Losey's laboratory happen in cornfields across the Midwest? Were these lovely butterflies, already under pressure owing to human encroachment on their Mexican wintering grounds, about to face a new threat from high-tech farmers in the north...
...that is beginning to happen, although--contrary to expectations--the reports coming in are not necessarily that scary. For three years now, University of Arizona entomologist Bruce Tabashnik has been monitoring fields of Bt cotton that farmers have planted in his state. And in this instance at least, he says, "the environmental risks seem minimal, and the benefits seem great." First of all, cotton is self-pollinated rather than wind-pollinated, so that the spread of the Bt gene is of less concern. And because the Bt gene is so effective, he notes, Arizona farmers have reduced their...
...greatest gifts is to discover early in life what you are meant to do, then Charles (Chuck) Kristensen, 49, must be counted among the lucky ones. He found his calling in 1973, at 22, while working for an entomologist at the University of Minnesota. "I spent a lot of time watching spiders," he recalls. All that webmaking, spider mating and insect catching resonated with something in his personality--he still can't say what. "It just nailed me," he says. "I knew I would be working with spiders for the rest of my life...