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Lethbridge Herald Newspaper Archives

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Lethbridge Daily Herald, The (Newspaper) - July 7, 1971, Lethbridge, Alberta i THE LETHBRIDGE HERALD July 1971 critical of opponents of chemicot use on crops pesticides said impossible in starving world J can blind creati o 3000 to fal ol Pesticide researchers at the annual meeting of the Agricul tural Pesticide Society Tues day levelled cautious crit icism at opponents of use 01 any chemicals in crop con While fully recognizing the potential dangers of existing and future agricultural chemi they said total caution is an impossible luxury in a world where half to twothirds slowly iv Dr of the Uni versity of said substantial and careful re starch must be done into the possible of the population starving to sideeffects of new pesticides introduced into Ca nadian But this does not mean thai we should wait in starvation or several lifetimes while we experiment to assure total satety we simply must take some calculated of the Al berta department of agricul ure laboratories in pointed to the millions of acres of single types of plants Canada is now These are the perfect breed ing grounds for insects and dis eases which are fond of spe cific types of plants an epidemic would wipe them out rapidly and completely if we didnt use chemicals for con He said that while significant evidence exists to show dan gerous sideeffects from pesti cides in common there is a tendency to take a band wagon approach by focussing all of the blame on the chemi cals and looking no As he said the heavy overuse of DDT for the jast 20 or more years has been jlamed for appearance in arctic regions of some of the breakdown products of DDT in animal tissues new evi shows that the same chemicals can be pro duced by other and natural chemical And DDT has also been blamed solely for the drastic decrease in the population of Peregrine now on the verge of DDT has been shown to be a definite he but in the Middle East the falcons will sell for up to to fal coneers this is another ma jor factor in their loss of pop Gurba said too much on the dangers Heres how the ball bounces An agricultural chemicals lesson Probably the most senous concern in both plant and live stock production on farms is ksses due to insects and With modern demands re quiring tremendous amounts of it is necessary to mini mize such loss while the General rule no mixing pesticide researchers hasten to say making certain that any chemicals used have the slight eft possible side effects or dan gers to Herbicides are varieties of chemicals which kill or weaken weeds insecticides are chemi cals which kill or control in sect scavengers and fungicides are chemicals which kill dis plants plants these eases or immunize against the diseases Three specialists in No one knows what the ef fect of mixing most agricul tural chemicals together might be and the effect could be pesticide research ers were told Dr Vanden of the University of Ed told delegates to the annual meeting of the Agricul tural Pesticide Society his re search and that of others does show that there indeed are ef fects insufficient ex perimentation has been done to have any idea what all of the results could He said fanners should spray all chemicals separately whenever possible with some time left between sprayings except where the registered in formation about the chemicals says it is safe to mix them This opens the subject o compatibility of agricultural and it doesnt in volve just the canned or bag ged Various soil nu natural chemicals pres ent in the soils and even tlu alkalinity of the soil can tx major Vanden Born said som pesticides interact in such way as to reduce the effective ness of any of them others in teract to improve the effective ness of one of them yet other seem to undergo entirely n change by Sometimes a mixture will in hibit the degradation of a leaving the poison o the plant or in the soil Ion after it would normally hav become Treatment of seeds with or set of chemicals and later a plication of pesticides for othc purposes can also have mi hire Vanden Born Not all of the mixtures will ave known negative effects on but some will slow or educe inhibit germi reduce yield or yield uality and other less obvious With all of the unknowns nvolved and because evidence hows that the chemical resi ues may linger longer than when the chemicals are used the potential re ults of mixing must not be aken he He called for more research in the area of chemical com atibility which would deter nine the mechanisms he effects of specific mixtures and ways of avoiding mixtures and still protecting In any haphazarc mixing by the farmers canno justified its better to avoid mixtures in the tanks or ive One delegate ers initiators on the ground rather than risk the The results may dangerous only to not be humans some mixtures have been shown to encourage growth o certain or to severelj curtail crop growth and of th Velsicol Corporation of Canad in agreed tha much more information i needed before agricuEura chemicals can be mixed saf as agriculture be comes more diversified an so does the pres sure for higher yield rates an protection from more He said as many as fiv chemicals may be needed control all the potential weed insects and diseases which crop might suffer or be suffer ing from at a given More communication is need id among specialists in various ireas of agriculture and chem he in order that afe mixtures can be establish i There must also be more co peration among jvernment and industrial lab ratories in order to determine possible mixture These entures would have to include ccurate and at present top secret data concerning the ormulas of various competi termed farm of the first and said he was con cerned about the casual way many farmers mixed various chemicals to simultaneously protect crops from a variety of in charge of pesticides research and de velopment for Cyanamid of Canada and said le has seen a witchs brew resulting from some of these amateur mixtures in spray ing He said in one case he found a rubberlike polymer chain which our chemists have so far been unable to identify or even figure out what chemicals were mixed to make And industrial salesmen and some manufacturers are also playing a dangerous Apparently most detergents on the market designed to as sist the free flow of pesticides through mechanical nozzles on the spraying tanks are com pletely The major concern express was that there has been no research at all into what the mixture of pesticide and detergent may areas Tuesday addressed dele gates to the annual meeting of the Agricultural Pesticide So part of the 51st annual Agricultural Institue of Canada said Henry Frie head of crop research at the Lacombe Research Sta cause greater losses thar all other forms of agricultural If fields are left to them he weeds rapidly move in and compete for nu trients from the for light and for in the early stages o growth competition for nitrogei in die soil is fierce and thr weeds usually While there is a difference in the competitive strengths educe to harmless chemicals i nd similar factors must be in Neil head of the ntomology section of the Leth mdge Research told delegates studies show it is wobably difficult or impossible o accurately measure costef ectiveness factors in use of In past years the simple fact hat they worked was suffi cient further data is being He warned that in addition o being cautious about the sideeffects of use of he dangers of withdrawing hem from use must also be he have saved countless millions of lives because so many diseases are carried by insects in Can ada human fleas and bed among other pests have been almost totally Cutback in insecticide use could permit these unpleasant insects to spread and could also permit increased in sectborne He suggested a recent mos quito outbreak in Calgary and Edmonton could be due to re duction of insecticide spraying suit can be food loss of export markets and distur bance of population smut and most oilier crop diseases are being controlled successfully today by modern permitting the safe planting and growth of highyield species which might otherwise Thompson of pesticides can blind re search into the potential dan gers of mixtures of their break down products their meta And as the pesticides deteri orate into other these loo may further break giving an entirely new set of chemicals to mix togeth er to worry Human manipulation of the environment is often a cause of the death of rivers or but water systems also die natural Men may hasten their deaths men may also act to slow down or stop their natural Badly clogged streams in some mountain areas are due entirely to natural where an overmature forest is pouring its decay into the creating perfect con ditions for algae and Innocent actions by de for their and their en vironments may also have the effect of chang plant of the Leth bridge Research said prairie grass on the Blood In dian reserve hasnt been touch ed in any way by man or by pollutants for hundreds of but it is completely dif ferent than it was in the days of 4te He said several hundred years ago there were regular and widespread grass which burned off large sections of the land but to day theres just no such tiling changed nature by pro Federal guidelines urged Feature by Jim Wilson Staff Writer various The weeds are generally stronger than the crop Friesen said the most sensible approach to weed con trol would be to simply remove them from the but since tlJs is impossible were left with the At 50 weeds per square the infestation starts to do se rious damage to crop yields and crop growth may become badly And some stu dies have shown that 90 per cent of Canadas farms may have this level or greater of weed cost of applica Farm writer awards made at meeting here Michael Moore of the ronto Globe and Mail was awarded first prize Tuesday for reporting by the urban press on farm The award was made by the Canadian Farm Writers Feder ation for an article by Moore on the chicken and egg Tha runnerup was Jack Art of the Edmonton Two members of the CBCs farm George Price of Ottawa and George Atkins of cornered the awards in the radio presented at the federations annual Price took the prize for the top news report and top feature and Atkins for the best radio SPECIAL PORK SALE WHOLE or HALF CUT and WRAPPED BACON AND HAM CURED AND SMOKED SAUSAGES MADE TO ORDER ALSO SPECIAL PRICE ON CUTTING AND WRAPPING OF BEEF 30 STEVES QUALITY MEATS CONFECTIONERY COALDALE 3453929 OPEN DAILY 10 to 10 EMPLOYMENT Female Cleaning Personnel Applicants must be over 22 years of age Keith Smith of member of the information vision of the agri Iture won the ize for documentaries and ott Flewitt of CFRN Televi on in Edmonton won the tele ision feature category with e Market Bryan Lyster of the Country published in as first in the rural press re orting with his article on new fain policy the run erup was Gillian Claxton of writing for Farm and The top press feature was an rticle on the grape busi ess by Elva Fletcher of Win a staff member of the ountry Honorable mention went to Guy of writing in Coun ry Frank Calgary edi or of won the ward for top and onorable mention went to editor of Coun ry Life in the bulk of farm equip ment and massive amounts of labor go into weed control at a cost of millions of Friesen said when these are taken into and the factor of late seeding to avoic peak weed growth times re sulting often in lower yiels be cause of the seed variety weeds cost an average of to per acre per year in Can On a national basis this means up to million in an nual expenditure for weed con He said further research is needed into application method and times when application o chemicals will be most effective Also the climate th time it takes the herbicides t the two Holmes said there are Detailed guidelines must be set out by federal government authorities over the kinds of measurements required in pes ticide research and develop if any agricultural chem icals progress is to be George in charge of pesticides research and de velopment with Cyanamid of Canada told 60 delegates to the Agricultural Pesticide Society annual meeting Tues day that as things stand there are no guidelines at The result is that each gov ernment agency establishes its own criteria based on little or no knowledge of the he We have instances of agen cies asking for specific inform and when they get it asking for still and re peating their demands again and Weve had to repeat expert ments five or six times to lore than 600 separate species crop pests in at east 100 of them common in And even after we control the pests in the we have to rontrol new pests when the crops are in he There can be no accurate cs imates of the amount of crops which could have grown if in sects had not been the farm ers but Holmes said that an average heavy in tstation of grasshoppers could at or destroy 80 million tons of food on the prairies just be their hatching and readi ng Damge done af maturity would be even satisfy when if theyd known what to ask for in the first place one experimen would have given them all the data they This way we waste time and Cooper said pesticides research began in a rathe concentratin many years ago on findin crude Insecticides become an ex tremely cheap form of protec tion from this sort of he Hazen a Can ada department of agriculture plant pathologist in Ottawa said plant diseases cost up to million per year in In exceptional such as a recent corn blight in the United States they can cost al most the entire crop billions of dollars and the world es timate is about billion per Plant diseases may or drastically reduce yields and quality of And the re chemical agents which woul kill or control pests insects disease with littl concern about side effects o breakdown Private industry concern public concern and governmen concern as illustrated by ne legislation have changed th he to the exten that today million may bt spent in research assuring eac products with million or less a fe years with the prolifer tion of public agencies all as ing for new information co cerning individual and their pesticid the co panics are becoming i creasingly wary of putting t heavy an investment into ne chemicals They could be banned week after we get permissi to market just beeau there are no government ove guidelines to protect us the whims of different of He said it is the responsi ity of industry to search out w screen them or establish what the products of the iemicals are after they per rm their establish hether any of the breakdown are harmful and to do lated But research into all of the de effects demanded y many private envjron nentaliit and other iculd be the responsibility of IB he Universities too have an im portant role in pesticide re but it complements the oles of industry and govern of the Uni ersity of told the meeting he believed the most important pesticide re earch universities could do was to establish the median sms by which various types o chemical and biological pesti cides He said an increasing num her of experiments are being done to find how the variou crop and livestock pests de in order to find beitte means of using the chemical on An example of this might b to find ways to chemically in terfere with the process o at the base o all plant If photosynthesi were more precisely under chemicals could b found to destroy weeds by dis turbing their life bu at the same time be harmles overreaction to the potent dangers of pesticides on th instant experts in the field an the scare headlines in th He said current researc should be aimed at findin more quickly degradable pe on biological contr on pesticide and pe ticide breakdown p r o d u c monitoring systems and sim lar New laws and their rigid e he are also A much neglected research area is the effects of pesticides plants and insects other an the targe Substantially more research ust also be undertaken on the wssible interactions among the arious chemicals par cularly when He called on universities and to increase their caching role in the area of esticides by roviding full studies in pests nd by providing hort courses for the benefit of lose using the chemicals and ourses for persons involved in leir manufacture and Doug coordi ator of entomological re earch at the federal depart ment of agriculture laboratory n said the wide ariety of pesticides developed n the 1940s was part of the I me blush of new science which produced many medical drugs and the atomic It took some he or researchers and other per sons to realize that the chemi cals production was not the end of the The federal research estab lishments are now rapidly in vestigating both existing and proposed chemical and biologi cal pesticides to determine what their effects will be on the entire crop Peterson Human health and the gen eral Canadian environment wffl be uppermost in the research ers he but empha sized that the program was in no way new Its an accelera research program long been under tion of which has Pest population management assessment of costs and related effectiveness of various methods of pesticide application and a generally more sophisticated approach are now part of our Peterson said develop ments in other countries would also be watched for possible Canadian application Keen watch to avoid contamination of water Publishes book Ruffled a book by controversial Indian William of Calgary should be printed and on the market by late August or early Wuttunee said the book is complete and has been sent to a printing company in Ja It should be published in six or seven Agricultural waters all of the ponds and irrigation sys tems so necessary in many parts of the prairies for as sured crop growth depend heavily on use of delegates to the annual Agri cultural Pesticide Society were told of the Alber ta department of agriculture in cautioned that com munication must be constant among all users of to see that herbicides used do not contaminate water required for nonagricultural Alberta water is owned by the and may be used under licence for domestic or municipal industrial and water power and for But under the provincial Water Resources it must be of the Leth bririge Research Station said there are three types of plants which must be controlled in water those which live at the bottom of streams or lakes those which float on them and those which grow out of them He stowed a number o The Family of and Swan Honor Their Parents on the occasion of their 45th WEDDING ANNIVERSARY All friencU cf Sid and Eileen art te an open houie July 8th from fo 10 1714 6th illustrating the problems must deal Weeds may clog irrigation anals so badly that water flow reduced by up to 80 per he and they can row so thickly in lakes and onds that they destroy breedig grounds and natural habiats of birds and get so dense hat the ducks dont they on the There are a number of erbicides available for tlreir most of which are reatively harmless to animals cr A few reuire that the water not be sed for a brief and some ven require that the water not ic used for up to a Allan said much more experimentation is needed to find vays of getting the herbicides lo specific plants simply lumping them on the top of a ake or stream is wasteful and often He suggested research should be done to find the most effective combination of herbicide mechanical cutting and biological eventually control all weed growth in agricultural or recreational Allan also pointed out that many times only some of the aquatic plants are undesirable means must be perfected to remove the unwanted plants from a thicklyinfested lake or stream while leaving the others safely of the University of Alberta in said research must concein itself with all water in the since the agricultural waters cither draw their supplies from other waterways or eventually flow into other He said research must also be carried out to protect water anc air from all chemicals usec foi agricultural which are placed in water or may eventually flow into We have to establish a public confidence in the use of pesticides where they are and this needs both and education he In this program must be mluded finding ways to use of all wellinformed people j go into the public domain o reduce the emotional biases o the use of chemicals similar biases held by many irofessionals and researchers Developing equipment and application techniques for the more effective use of careful determination of he fate of the chemicals used tracing of the pathways of the breakdown products Tom the chemicals Finding methods of deliberately degrading the pesticides after they have been Iliis way longlasting pesticides could be used to control specific weeds or then another chemical could be applied to destroy the pesticide which would include biological and culural treatments of pests at the most efficient levels in terms of cost Spray calendars suggesting what time of year it is best spray for certain pests will become integrated control resulting in a decrease el adherence ID the habit of spraying on the specified date whether or not the target pest is Corns SUNGLASSES to choose from AVAILABLE IN YOUR RX COAST SEAFOODS TRUCKLOAD SALE of FRESH FISH and SEAFOODS Will held at FORT WKOOPUP SERVICE July 8th and Friday July 9th From to FRESH SALMON TO A diwnlfitd Sparwood tain ond distributing firm in mlno and related mechanical and hydraulic equipment REQUIRES A WAREHOUSEMAN Dulles will consist of invoicinfl and maintonanco of proper slock Successful applicant must be in good possess drivers license and be Salary negotiable commensurate with education and Only experienced applicant will be Send complete handwritten resume slatlna salary expected with reforencci to Chartered Accountant Box ;