44 



THE GREENING PICTORIAL SYSTEM OF LANDSCAPE GARDENING 



A Lesson on Nursery Spraying 



AFIELD lecture by Charles E. Greening on sci- 

 entific methods of tree and plant spraying gi\'en 

 to college students during their summer postgraduate 

 course in horticultural study. Students come here 

 for the object of getting practical knowledge along tlie 

 lines of our experience. One of them remarked, 

 "One such practical lesson as is given here is worth 

 many months of theoretical study in an agricultural 

 college." The students in the group represent six 

 different agricultural schools from as many states. 



Thev 



are bright, energetic vouno- men and most of 



them are sons of wealthy people. 



The lecture on spraying includes a study of the 

 life-history of the different insects, that they may be 

 met and fought at their most vulnerable stage of development, 

 together with the best methods of combating them and warding 

 off their attacks on trees and plants, as well as guard against 



I'latf 34 



their dissemination by the application of the proper remedies. 

 The lecture also treats of fungous diseases and the necessary 

 remedial measures to prevent injury by them. 



A Lesson in Soil Renovation by Means of Green Manuring 



THIS scene is on the Greening Nursery grounds, 

 and pictures Mr. Chas. E. Greening delivering a 

 field lecture to a class of agricultural students on soil 

 renovation, one of the greatest problems that con- 

 front the American nation at the present time. Our 

 methods of farming have been wasteful in the ex- 

 treme, with little thought of maintaining the produc- 

 tivity of our land and, as a result, the farms, are being 

 rapidly exhausted of their fertility. Note the aban- 

 doned farms of New England: and note also the 

 wheat lands of the Red River Valley in Minnesota 

 and North Dakota which, in their ^•il-gin state, pro- 

 duced an average yield of forty bushels per acre, 

 and sometimes as much as sixty bushels per acre, 

 which is now reduced to thirteen bushels in Grand 

 Forks County, in the very heart of what was affec- 

 tionately called by the early settlers, "The Garden of 

 the World." An interesting feature of this lecture 

 is the demonstration of practical results in the turn- 

 ing under of various kinds of farm crops for green manuring to 

 obtain certain results. The picture shows an instance in the 

 Greening Nursery wliere a hca\')- crop of red clover is turned 



Plate 3.-) 



under, and the camera man happened to catch the students at an 

 interesting moment. That much interest is manifested in this 

 work is plainly disphued on tlieir faces. 



