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Matheson, Robert. (9480) 



the poplar and willow borer. Cornell Univ. Agr. Exp. Sta. Bull. 388 : 

 455-483, illus. 1917. 



Metcalf, Z. P. (9481) 



THE GLOOMY SCAEE, AN IMPORTANT ENEMY OF SHADE TREES IN NORTH CAROLINA. 



Jour. Elisha Mitchell Sci. Soc. 18 (2) : 88-91. 1912. 



Middleton, William. (9482) 



factors influencing the activity of shade-tree insects and the utiliza- 

 TION of these in control work. 4th Internal!. Cong. Ent. Trans. 2 : 374- 

 381. 1928. 



(9483) 



shade-tree value is subject to severe reduction by insects. U. S. Dept. 



Agr. Yearbook 1927 : 570-575, illus. 1928. 



(9484) 



some factors influencing outbreaks of, and the control of, shade-tree 



insects. Jour. Econ. Ent. 21 : 421-431. 1928. 



Murrlll, W. A. (9485) 



insects attacking shade trees. Jour. N. Y. Bot. Gard. 20 (229) : 5-6. 1919. 



Murtfeldt, M. E. (9486) 



shade-tree destroyers. Arner. Gard. 1 : 151-152. 1875. 



Riley, C. V. (9487) 



OUR SHADE TREES AND THEIR INSECT DEFOLIATORS ; BEING A CONSIDERATION OF THE 

 FOUR MOST INJURIOUS SPECIES WHICH AFFECT THE TREES OF THE CAPITAL, WITH 

 MEANS OF DESTROYING THEM. U. S. Dept. Agl*., Div. Ellt. Bull. 10, 69 pp., 



illus. 1888. 



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OUR SHADE TREES AND THEIR INSECT DEFOLIATORS ; BEING A CONSIDERATION OF 

 THE FOUR MOST INJURIOUS SPECIES WHICH AFFECT THE TREES OF THE CAPITAL, 

 WITH MEANS OF DESTROYING THEM. U. S. Dept. Agl'., Div. Ellt. Bull. 10, 



rev., 75 pp., illus. 1888. 



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REMARKS ON THE INSECT DEFOLIATORS OF OUR SHADE TREES . . . New York, 



Globe Stationery and Printing Co. 12 pp. [1887.] 



Ruggles, A. G. (9490) 



notes on forest and shade tree insects. Minn. State Forestry Bd. Ann. 

 Rept. 3: 111-115, illus. 1913. 



Schlack, E. M. (9491) 



TUSSOCK MOTH AND OTHER IMPORTANT SHADE TREE INSECTS. 111. State Hoi't. 



Soc. Trans. 51 : 248-256. 1917. 

 Slingerland. M. V. (9492) 



TWO NEW SHADE-TREE PESTS ; SAWFLY LEAFMINERS AND EUROPEAN ELMS AND 



alder. Cornell Univ. Agr. Expt. Sta. Bull. 233, 16 pp., illus. 1905. 



Smith, E. A. (9493) 



insects that infest [shade trees]. In Stewart, shade trees, indigenous 

 shrubs and vines, ed. 1, pp. [29]-55. 1897. 



Smith, J. B. (9494) 



insects injurious to shade trees. In N. J. Forestry Park Reserv. Comn., 

 The Planting and Care of Shade Trees, pp. 67-91, illus. 1912. 



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insects injurious to shade trees. N. J. Forest Park Reserv. Comn. Ann. 

 Rept. (1908) 4: 85-100, illus. 1909. 



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insects injurious to shade trees and ornamental plants. N. J. Agr. 

 Expt. Sta. Bull. 181, 50 pp., illus. 1905. 



Snyder, T. E. (9497) 



defective shade trees menace life. Amer. Forestry 27 : 309-311, illus. 

 1921. 



