European Stars And Stripes (Newspaper) - June 28, 1986, Darmstadt, Hesse Or Arcin , ill Nul of occupational studies Lor Iho National canc i ins Dilulo Naid studies by the Institute had shown a link Between Long use of pesticides and ice Mars incidence of of cancer another study of such As a who apply showed Itic longer a person was in Iho profession Iho High i she of Rinir mid Irro was no evidence p -.-.ticide1 Nerc Assoc and Oll i Diamo attributed to smoke re Lizul Hii re arc important Narf Tingir to said is inf split g yearned Hiil Irvi it pr1 Vav uld develop immunities 1o pesticides Over tinn. I air in More and mum spraying in last Don no vnii.r.i1. Have Diw loped such immune lir in addition. Department of agriculture liquids show Toul crop losses to insect and Weed posts actually grow in acc Cal decides despite Tho Sharp growth in House of pesticides a 1945. 32 parcs no of crops were lost to posts by 1964 such losses had increased to 37 Force ii Carson concluded Sil Cril Spring by describing i to diverging roads Hal toy by lord humanity one Road would be to continue to acc Cpl the counsel of those who Lell us we must my our world chemical poisons " she urged a shift to the Road less travelled with highly selective use of chemicals anti much greater Reliance on biological controls Tike Nal rat predators environmentalists As Well As academic and Industry scientist interviewed in accent weeks generally agreed that the nation is nol now on either Road the use of pesticides remains High bul there Are signs of a shill to biological solutions to insect and Weed pests they also noted thai gaelic engineering promises a whole new Arsenal of weapons As Well As new problems meanwhile More armours Are moving to non chemical Means of pest control and fertilizing there is. Said Hinkle of lha Audubon society a Glimmer of Grasshoppers mrs this Ere eating their Way through sections of the Western United states. Insect resistance to pesticides making chemicals obsolete to Tow pub thing of "3htnt byway Teyoung United press International insects Are building resistance to pesticides a such a Unous clip that chemicals will become obsolete unless Farmers adopt new la clips for Pes control according to a new study the National research Council the research Armol the National Academy of sciences suggests chemical pesticides be used Only in alternate years and that Farmers return to such old fashioned methods As peppering their Fields with natural predators. What we Noeo to realize is that we can no longer depend totally on one Typo of control said Homer m. Lebaron a member of the Council s pesticide committee and a researcher Al Ciba Sci Ray corp in Greensboro. No. 1 we have to educate everyone nol to consider chemicals inc Only Means of control " the problem of insects and weeds building a natural resistance to pesticides is Escal Ahng. According to members of the committee before world War ii seven species of insects and mites were known to be resistant to . Today thai number has climbed to 447 species and effective chemicals no longer exist to control such major agricultural pests As inc Colorado potato Beetle and the Diamondback Moth the problem of herbicides is nol As great As the problem of insecticides said committee member Bruce Al Levin a professor of zoology Al the University of Massachusetts Al anti Cost some studies suggest Farmers lose the same proportion of their crops to pests As they did before the Advent o chemicals according to committee members. Tha resistance is nol confined to insects. Rodents weeds fungi pathogens and parasites have also become impervious to toxic chemicals. According to the report at least 100 Plant pathogens have developed some resistance to pesticides As have 55 species of weeds two of parasitic Worms and five species of rodents. This would indicate we Are losing the race we Are approaching 1hc end o chemical control said Levin. In the 40 years since pesticides first made their appearance we be established a sit Lalion or evolution to operate. Forty years represents a lot of Jener Liono Whon it comes to Iho resistance pests build to chemical Les can be explained by darwinian selection Ihu committee members said some pests have a n ii ural ability to produce an enzyme that detoxifies chemicals they said these pests survive the chemical Spray and their offspring inherit their trait Wilheln a few generations the pests Wilh the inherited ability to detoxify inc chemicals become abundant enough and Hardy enough to limit Iho effectiveness of the pesticide. Within decades. The whole population of insects can have the ability to Render pesticides useless any time you rely on one Means of Pesl control you pressure Hal pest to build up a resistance la Lind a Way around that control said Lebaron the committee members believe in May be possible to slave Oil insect resistance to chemicals by using Irie pesticides Only sparingly. This would mean inc cos capable of detoxifying the chemicals would be Killous by of her Means preventing their Oll Spang irom mul plying thai second method of pest control will eliminate those special is cols and break the Chain said Lebaron that second generation Able to Delon Ify Tho chemicals is really very weak they Are susceptible to natural predators. They would t be Able to i Island a crop relation. Once they Are gotten rid o. Pesticides can be used effectively he said the most difficult part of the commit tee s proposals May nol be getting rid of the pests but persuading Farmers to vary their Pesl control methods crop rotation and releasing natural predators into a Field Are old methods of Pesl control. Said Levin. The old methods Are labor he said it s expensive and not As apparently Eif Clive. Consumers Don t like an Apple that s even a Lille bit Lebaron said Many american Farmers experiencing the most difficult time in agriculture since the 1930s, Are not willing to give up pesticides thai work Loday because they May not be effective in the future. We can see what s happening in a scientific said Lebaron. To have to remember thai must be transferred to the realities of a the stars and stripes Page is
