668 



AMERICAN FORESTRY 



assure us freedom from the introduction of new pests, In order to avoid further catastrophes Hke those caused 

 although the_v do much to prevent their introduction. There by the chestnut bark disease and the gypsy moth: 



is one simple method that will keep us free from new 

 parasites. Tree planters must limit themselves to stock 

 grown from seed in the region in which it is to be planted. 



It sometimes 

 happens that the use 

 of home-grown stock 

 will involve delay or 

 even additional ex- 

 pense. Jhe ounce of 

 prevention may cost 

 a little money, incon- j 

 venience, or time, 

 but its cost is infini- 

 tesimal when com- 

 pared with the cost 

 of the many pounds 

 of cure needed to 

 merely keep a seri- 

 ous disease in check 

 after it has once be- 

 c o m e established. 

 With its great range 

 of climate, the United 

 States can grow from 

 seed any species of 



Each of the regions shown above contains dangerous tree parasites which should be excluded 

 from the others. Shipment of nursery stock from any one of these regions to another is 

 dangerous, even if the stock has been previously inspected. 



1. Do not import nursery stock from any other 

 continent. 



2. Do not shi]) stock or buy stock that has been shipped 



across the regional 

 boundaries show n 

 in figure. Make 

 sure that the stock 

 you buy from your 

 local nurseryman has 

 been raised from 

 seed in your region. 



3. If it should be 

 absolutely necessary 

 to buy stock from a 

 nursery in another 

 region, choose a 

 nursery that is in a 

 farming community, 

 in open rather than 

 in forested country, 

 and that raises its 

 own stock from seed. 



Our tree [planters 

 deserve great credit. 

 It is an excellent 



any tree that can be grown here at all. The present dis- thing to make two trees grow where but one grew before, 



organization of the import business offers an excellent But the man who leaves a heritage of pests as well as of 



opportunity for American nurserj'men to make any needed trees will deserve no praise from succeeding generations, 



preparation for supplying the entire home demand. There The method of avoiding disease introduction by planting 



is no excuse, under present conditions, for us to continue home-grown stock is simple and relatively easy. After 



dependent on foreign countries for any of our tree stock, the lessons we have already had, the establishment of 



The lesson for the tree planter to take from the bitter a new tree pest in any part of the country is to be 



experience of his brother agriculturists, then, is this: regarded as an avoidable calamity. 



FORESTERS TAKE BIG TRIP 



AjMES forestry students this summer took a three- 

 months' trip through western and northwestern 

 ' United States for the purpose of studying forestry. 

 The party of fifteen consisted of forestry students and 

 the members of the forestry faculty at the Iowa State 

 College. The trip took the party through practically 

 all the different forest regions of the west and north- 

 west. Stops were made in Colorado, Utah, California, 

 Oregon, Washington, Idaho, Montana and Minnesota. 

 The longest camp, of three weeks' duration, was made on 

 the Columbia National Forest in Washington, where 

 unusually good opportunities were had for studying dif- 

 ferent lines of forestry work. 



THE farm woodlots of the United States contain 

 about ten per cent of the total standing timber in 

 the country. 



PLANTING ON HIGHWAYS 



ARRANGEMENTS have been completed for 

 cooperation between the Pennsylvania Depart- 

 ment of Forestry and the State Highway Depart- 

 ment in planting shade and fruit trees along the State 

 highways. The Department of Forestry will grow the 

 trees from seed in its big nurseries. They will be trans- 

 planted into areas set aside for the purpose, and when 

 they have reached suitable size the trees will be turned 

 o\er to the Highway Department and private good-roads 

 organizations for planting. 



THIRTY-SEVENTH ANNUAL MEETING 



The 37th annual meeting of the American Forestry 

 Association will be held at Washington, D. C, on 

 Thursday and Friday, January 18 and 19, 1917- AH 

 members are urged to attend. The program will be 

 announced later. 



