Page 70 



BETTER FRUIT 



February 



THE PERFECT PRODUCT 



Combines the highest standard of manufacture with chemical and 

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modern scientific orchardist. 



HEMINGWAY'S 



LEAD ARSENATE 



Completely complies with the Federal Laws. Complete analysis showing 

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Colorado potato beetle, which for cen- 

 turies had only been able to maintain its 

 existence upon the scattered plants of 

 the wild species of solanum, native to 

 the region. As a result of an abundant 

 food supply this insect increased in num- 

 bers .80 rapidly as to get away from its 

 natural enemies, and it soon made its 

 way along the courses of the great trans- 

 portation lines to the Atlantic seaboard, 

 and even took ship and went to Europe, 

 where it established thrifty colonies in 

 defiance of the laws of extermination 

 passed against it. 



The plum curculio, the plum gouger, 

 the apple curculio, the peach borer, the 

 chinch bug of our prairie states, our 

 destructive locusts or grasshoppers, many 

 of our cut worms and destructive plant 

 lice and numerous other crop pests come 

 in this same class. 



However, many of our very worst 

 insect pests are those that are not native 

 to the region, but which are in some way 

 brought into it from a distant locality, 

 perhaps a foreign country, from which 

 it is separated by some natural barrier, 

 such as a large body of water, a moun- 

 tain range, a broad stretch of prairie or 

 many degrees of latitude having a much 

 warmer or colder climate. 



If an insect can by some means be 

 taken entirely out of its native habitat 

 and placed in a region where some suit- 

 able food-plant occurs in abundance, that 

 insect is almost certain to increase very 

 rapidly and become a serious pest, for 

 the reason that it has escaped from the 

 natural enemies that held it in check in 



its original home. As examples of such 

 insects we might cite the Gipsy and the 

 brown-tail moths. For untold ages they 

 had fed upon the trees and shrubs of 

 Europe, but on being brought to this 

 country they experienced no difficulty 

 in substituting as their menu almost the 

 entire flora of Massachusetts, including 

 some of the evergreens, and they have 

 increased with such rapidity as to almost 

 render futile man's attempt at their 

 control. Their tremendous increase in 

 numbers was not due to any superior 

 nutritive value of the foliage of our trees, 

 nor to more favorable climatic condi- 

 tions, but to the simple fact that they 

 were taken away from their natural ene- 

 mies, especially the parasitic and pre- 

 daceous insects and the birds, and per- 

 haps fungous and bacterial diseases as 

 well, that under European conditions 

 kept them from doing very much harm. 



Listen to the familiar names of a few 

 other insects of this class: The codling 

 moth, green apple aphis, woolly aphis, 

 San Jose scale, oyster-shell scale, peach 

 bark louse, green peach aphis, currant 

 saw-fly, green cabbage worm; and the 

 list might be greatly extended. 



In states where nearly every orchard 

 malady is quite generally distributed 

 quarantine laws may not be very impor- 

 tant, but in a state like Colorado, occu- 

 pying the unique position that it does, 

 with a broad stretch of semi-barren 

 plains as a barrier on the east, a high 

 mountain range as another barrier, run- 

 ning north and south through its middle 

 portion, and a stretch of barren moun- 



tainous country on the west, and having 

 its orchard sections in small mountain 

 valleys isolated from one another, and 

 with the handicap of a long and expen- 

 sive haul to market, quarantine regula- 

 tions to keep out insect pests and plant 

 diseases become a paramount issue. 

 While our soil, our climate and our 

 ability to control the water supply to the 

 land are all conditions greatly in our 

 favor, our orchardists could hardly com- 

 pete favorably with their Eastern broth- 

 ers, who are situated in close proximity 

 to the large centers of consumption, if- 

 they had to combat all the orchard pests 

 and plant diseases that annoy the East- 

 ern grower to make his crop unprofitable. 

 When the writer came to this state even 

 the codling moth was unknown in some 

 of the large apple growing sections, and 

 fire-blight, or pear blight, was unknown 

 east of Denver and Pueblo. The moth 

 was gradually introduced from point to 

 point through the shipment of wormy 

 apples into the state, and blight through 

 the shipment of apple and pear trees 

 bearing the germs of the blight organism 

 (bacillus amilivorus). 



But I was to tell you of the troubles 

 we do not have. I shall mention only 

 those that are known to occur in other 

 parts of the United States. As they are 

 enumerated you will be helped to under- 

 stand how it is that our orchard lands 

 can be so high in price and our orchard- 

 ists still able to make good money on 

 their investment, and also why the state 

 entomologist and his inspectors are as 

 strict as they are in taking measures to 



