Word: controller
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Dates: during 1970-1970
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Narrow Escape. Research on pasture mosquitoes can be grueling. Charles H. Schaefer, director of the University of California Mosquito Control Research Laboratory, recalls a recent field trip he took with a coworker. "As we stepped into the pasture, black clouds of mosquitoes swarmed into the air. They landed on us by the thousands. When we tried to run back to the car, we got caught in the barbed-wire fence and they flew into our ears, noses and mouths." The scientists finally escaped the choking swarm by closing themselves in their...
...brief period after DDT was first put to use In 1945, the pasture mosquito seemed under control in California. But within seven years, the insects had become so resistant to the new chemical that researchers had to develop another organic compound, ethyl parathion. That failed in 1961-as did methyl parathion in 1963, and fenthion in 1968. Today, California has no chemical able to kill the pasture mosquito in safe dosages...
...compound the problem, aerial spraying used to be so effective that mosquito-control agencies permitted farmers to forgo installing drainage facilities to reduce the insect's breeding grounds. As a result, the Central Valley's heavily irrigated crop lands have become huge hatcheries for Aëdes nigromaculus. Now that insecticides are useless, farmers are being ordered to drain their fields-a costly process that may force many small operators out of business...
More cases seem likely unless Government agencies exercise tighter control over lead in pottery intended for culinary use. Spurred by their discovery, the Canadian research team conducted extensive tests on the commercial, hand-crafted and imported pottery available in their country. Of the 264 surfaces tested for lead release, more than half exceeded the FDA's allowable maximum, some by more than...
...concur. They foresee only small rises in production and profits next year, and predict a gradual lessening of inflation. The budget cutbacks by the Nixon Administration and the severe squeeze on the money supply, applied until early 1970 by the Federal Reserve Board, are at last bringing inflation under control. But these policies have produced a great amount of slack in the economy, which precludes any fast or strong comeback...