Year* 



THE IRRIGATION AGE 



VOL. XXVI 



CHICAGO, MAY, 1911. 



No. 7 



THE IRRIGATION AGE 



With which is Merged 



MODERN IRRIGATION THE DRAINAGE JOURNAL 



THE IRRIGATION ERA MID-WEST 



ARID AMERICA THE FARM HERALD 



D. H. ANDERSON 

 PUBLISHER, 



30 No. Dearborn Street, CHICAGO 



Old No. 112 Dearborn St. 



Entered as second-class matter October 3, 1897, at the 

 Postofflce at Chicago, 111., under Act of March 3, 187J. 



D. H. ANDERSON, Editor 



ANNOUNCEMENT. 



"The Primer of Irrigation" is now ready for delivery. Price, 

 $2.00. If ordered in connection with subscription, the price is S J .50. 



SUBSCRIPTION PRICE 

 To United States Subscribers, Postage Paid, . . 11.00 



To Canada and Mexico 1.60 



All Other Foreign Countries 1.60 



In forwarding remittances please do not send checks on 

 local banks. Send either postofflce or express money order or 

 Chicago or New York draft. 



Official organ Federation of Tree Growing Clubs ol 

 America. D. H. Anderson, Secretary. 



Official organ of the American Irrigation Federation. 

 Office of the Secretary, 212 Boyce Building, Chicago. 



Interesting to Advertisers. 



It may interest advertisers to know that The Irrigation Age is the 

 only publication in the world having an actual paid in advance 

 circulation among individual irrigators and large irrigation corpo- 

 rations. It is read regularly by all interested in this subject and has 

 readers in all part* of the world. The Irrigation Age is 26 years 

 old and is the pioneer publication of its class in the world. 



Renew 

 Your 



Subscription 

 Promptly. 



There is one thing that the publisher of a 

 periodical is vitally interested in and that 

 is the prompt renewal of subscriptions by 

 the readers. This may seem a small mat- 

 ter to the individual subscriber, and be- 

 cause the subscription price is only one dol- 

 lar per year may possibly account for the fact hat a consider- 

 able number of our patrons neglect to remit when their sub- 

 scription expires. But it is easily figured that if 3,000 or 

 4.000 of such delinquencies occur that it becomes a serious 

 matter for the publisher, it being equal to a large aggregate 

 sum while the one dollar item is but a trifle to the individual 

 subscribers. There are many papers who discontinue at once 

 a lapsed subscription, but so far the IRRIGATION AGE has con- 

 sidered it best to continue the paper to the subscriber unless 

 such continuance is forbidden by the reader. The matter is 

 however of sufficient importance to call the attention of read- 

 ers to it editorially and ask that they consider this matter 

 from the standpoint of the business man and remit when the 

 old subscription expires; the date of such expiration is indi- 

 cated on the wrapper which is automatically advanced one 

 year at the time the subscription expires. This is done in 

 order not to deprive our readers of a single issue at the 

 usual time and should be appreciated by sending the remit- 

 tance to cover the subscription for another year. 



We take this opportunity to thank our many readers who 

 are favoring us from year to year with prompt renewals 

 sometimes a month or two ahead of the expiration of the 

 same. 



Recent 

 Progress in 

 Spraying 

 Compounds. 



The Iowa Agricultural Experiment Station 

 has quite recently issued Bulletin No. 24 

 on the subject of spraying trees with lime 

 sulphur. It is a very useful pamphlet, 

 showing the best methods in use at the 

 present time, of the manufacture of the 

 lime-sulphur and how to apply it. Full directions are given 

 how to prepare the mixture for the home made compound 

 and how to dilute it for the various sprays to combat the 

 different fungi and insect pests threatening the fruit trees 

 under consideration. Every fruit grower should write for 

 this bulletin as the information contained therein means the 

 Vsaving of money for the husbandman interested. Also the 

 Minnesota Experiment Station under date of April 15th, 

 1911 (No. 8 of Volume II), calls attention to the spraying 

 of the orchard as follows : 



The dormant spray of lime-sulphur, and the first spray- 

 ing of self-boiled lime-sulphur and arsenate of lead, applied 

 as the buds are ready to burst, will have been given at this 

 date. The third spraying of the season (if we count the 

 dormant spray as the first) should now be planned for. The 

 insect we are after at this time in the Codling Moth, or apple 

 worm. The worm stage of this moth is the pinkish white 

 larva that is found so often in wormy apples. The moth lays 

 its eggs on the leaves or on the young fruit, and the little 

 caterpillars hatching from the eggs make their way to the 

 calyx end of the fruit, which at this time is uppermost and 

 wide open. In this calyx cup the insect eats its first meal, 

 afterward eating its way into the fruit around the seeds. 

 Now, if we can get this calyx cup filled with a stomach poi- 



