, r« • ) ■>)/ ,/<>{” ■! priMfi.'l . Marine 5 14—Lancaster Farming, Friday, August 9, 1957 1~-'4 k m'-'* k Mr } .. I w •* •*- «v< If' * TOO DRY TO PLOW? Not at the International Harvester Field Day held last Thursday. Here H. H Reinhart, IHC sales promotion supervisor, Harrisburg, and J. Harlan Burkhart, R 2 Ephrata, find that heavy equipment can plow up to 12 inches deep. Approximately 5,000 people attended the annual event. (LF Photo) OLIVER Gives You Topnotch Plowin with Tandem or 3-Point Hitch - £r ,r, ••• You avoid plugging delays, do a better covering job, plow at top speed with an Oliver. Here are extra big passageways for trash—greater beam clearance, more furrow-turning space between bottoms. No more rehitching or recoupling, either. Oliver plows have spring-trip beams that permit the bot toms to swing back, ride over obstructions without damage. To reset, just back the tractor. What a time- and share-saver! And, both these plows—the pull-type No. 4240 and the 3-point hitch No. 3241 —are convertible. It’s easy to add an extra bottom to a 2-bottom unit to match your power, and spring and fall field conditions. Come in and see a really modern plow. Let us prove that an Oliver plows better at lower cost. N. G. Hershey & Son Farmersville Equipment Co. Epbrata. R.D. 2 & t , ML IP** Manheim, RD. 1 E. L. Herr Peach Bottom Plant Explorers Seek New' Species Of Ornamentals A new look in ornamental land scaping for southern States may be the result of a recent plant ex oloration trip to Japan’s southern islands, the U. S. Department of Agriculture said today. The largest and perhaps the finest single collection of orna mentals ever gathered for the South was introduced into this country last winter by plant explorer J. L. Creech, who heads USDA’s Plant Introduction Garden at Glenn Dale, Md., Dr. Crech collected nearly 700 species of cultivated and wild ornamental in Japan. Representing the first of a series of foreign searches for orn amental plants that may prove of value to nurserymen, florists, and home gardeners, this quest was sponsored jointly bby USDA and the Longwood Foundation, Inc., Kennett Spuare Pa. Similar ex ploration, under the same joint sponsorship, are underway or be ing planned.for the future. Plant explorers are looking for lesser known ornamentals, as well as im proved varieties of plants already in this country A second plant-hunt in south ern Europe is being conducted by USD A botanist Fred G. Meyer, who is seeking Mediterranean type ornamentals sutiable for pro pagation in mild-climate areas of the United States. After exploring southern Europe, Dr. Meyer will travel to England, Scotland, Holland, and West Germany in quest of hard wood lornamentals such as hollies, that can be adapted to coldei' parts of this country Tentative plans have been set for an early 1958 exploration to South American countries, includ ing Braazil, Paraguay, and Uru guay. Search in those countries will be made for all types of ornamentals, especially flowering trees, adapted to warm, humid areas in this country. Plant ex plorers will also be seeking new and interesting house plants. Some of the more important species collected by Dr. Creech in Japan last winter include chry santhemum, camellia, holly, cryp tomena tree, evergreen oaks, and orchids of terrestrial and tree-in habiting kinds. One holly species Ilex liukiuensis, had never before been collected for the United States. I £ 4> 4> |N> V 4* 4> All Merchandise Must Go ! ! NEW 55T McCORMICK DEERING BALER $1695 NEW FARMALL 400 $2995 Used 50 T 1944 John Deere A-Excellent condition .. Farmall M NEW Super 77 P T 0 Used John Deere Harvester with 2 heads Used Gehl Harvester FIRST COME! FIRST SERVED! ONLY ONE OF EACH ITEM! ALL MUST GO! MUtMATItMAt NUVltllt ■llilllilli Illlllillllllilllllllllliliilllillllllilli Researchers Find Use for Cockroach As Insecticide Laboratory Guinea Pig The much-maligned cockroach, longtime bane of housewives, is a boon to one group of U.S. De partment of Agriculture scien tists. Entomologists and chemists of USDA’s Agricultural Research Service concerned with insect re sistance to insecticides are rear ing cockroaches as “guinea pigs” for laboratory experiments. Many varieties of insects in cluding the mosquito and house fly are outwitting man by building up resistance to insecti cides almost as rapidly as new in sect killers are turned out. Roach es are proving useful in attempts to solve this resistance problem and also in testing new insecti cides - and other preparations! needed injthe continuing battle! against insects. At least 12 special of cock roaches are being maintained at USDA’s Agricultural Research Center, Beltsville, Md. They range in size from those less than half an inch long to winged giants more than two inches in length, introduced into this country from South America. There are native American roaches, the German, species, and a variety of “undesir able aliens” from other parts of the world. Of great importance to> the research work is the fact that there are strains of one cock roach species that are resistant to insecticides as well as species that are non-resistant. In laboratory work at Beltsville, covering broad phases of insecti cidal and physiological studies, roaches are being used to evalu ate household sprays including aerosol to determine their effect iveness and the quantites of sec ticide required and to provide a basis for accurate labeling of these products. Roaches are also used in the study of other chemical formula tions that may prove effective against insects. Among these are repellents and attractants. If sufficiently effective, such mate rials may eventually become high ly useful means of combating in sect inffestation. The rearing of the roach cul tures is important in itself. This work permits close study of the habits and characteristics of dif ferent species of roaches—knowl edge that is needed for effective control or eradication programs. Also, because roaches are rela tively large, they are excellent laboratory subjects for dissection. Their use in this respect is ex- TAKE ADVANTAGE OF OUR LOW, LOW PRICES NOW ! Call Collect Lititz MAdison 6-2131 For An Appointment or Wire Collect Night Phone Lititz MA 6-2281 D. L DIEM & SONS LITITZ PH. MA 6-2131 lilililllllliilllilllllllllllllililllllllllllliii iiiiiiiiiiiiiiiiiii .pected to greatly increase knowl edge of insect physiology and may easily lead to findings of major importance. Dissection, so far as insect con trol is concerned, offers a means by which the effect of insecticides on various organs can be studied. Such studies include the use of radio-active insecticides on the roaches and dissection later, to determine, by the use of instru ments which measure radioactiv ity, the presence and quantities of insectids in the various in sect organs. Cockroaches themselves demon strate the value of this resarch in all its phases. For example, the German roach, which was an early immigrant to this country and is now widespread, has recently be come resistant to insecticides in, some areas of the United States. Resistant roaches spread from one) colony to another, making con trol or eradication measures diffi cult. The brown-banded roach, rarely seen 20 years ago, demonstrates how rapidly a species can spread. This species is now common in, eastern, southern, and mid-west- - ern sections of the country. It frequents the dark recesses of electric switch and fuse boxes, radio and TV cabinets, and other dark or secluded locations about the home. In these places the fe males deposit egg capsules, each one of which may produce a doz en or more offspring. One life cy cle egg capsule to nymph to adult is completed every three months. Fortunately and probably be cause of this relatively long life, cycle the brown-banded roach es have not yet developed resist ance to insecticides as have the German roaches, which require only six to eight weeks to com plete a life cycle. But USDA in sect specialists believe the brown banded roach still could develop' insecticide resistance If it does, control will be a difficult prob lem. Spread of the brown-banded roach, and the chance it may be come resistant, adds to the need lor finding effective insecticides' and also creates a need for repl lents and attractants as additional tools fo .ontrol. This is only one of six species of roaches common, to many areas of the United States. Since World War 11, there have been invasions by at least three new species, any one of which can spread from area to area. $795 , $395 . $995 $1575 $795 $475 Mimna
Significant historical Pennsylvania newspapers