REPORT OF THE STATE ENTOMOLOGIST I906 



71 



Scale in Orchard. Country Gentleman, Feb. 22, 1906, 71 : 184''^^ 



Directions for spraying orchard trees infested by San Jose scale, A s p i d i - 

 otiis perniciosus Conist. with lime-sulfur wash. 



Bag Worm. Country Gentleman, Feb. 22, 1906, 71:185^^ 



Spraying with an arsenical poison or hand picking recommended for the 

 control of the bagworm, Thyridopteryx ephemeraeformis 

 Haw. 



Spraying Calendar. Suburban Life, IMar. 1906, 2:144-45 



Summarized directions for the control of the more important fruit and 

 garden pests. 



Poison Formulas. Suburban Life, J\Iar. 1906, 2:145-46 



Formulas for the standard insecticides and fungicides. 



Insects Affecting Park and Woodland Trees. N. Y. State Mus. 

 Mem. 8. 1905. 1:1-332, a333-a459, 48 pi. (20 colored), 63 

 text fig. 

 Issued Feb. 2^^^, 1906. 



Contents 



PAGE 



Preface .' 3 



Introduction 5 



Injuries caused by insects.... 5 

 Shade trees and adjacent prop- 

 erty affected 7 



Definitions and classification.. 8 

 Important groups of insects 



affecting forest trees 10 



Literature 12 



Transformations of insects ... 13 

 Parasitic and predaceous 



enemies 20 



General preventive measures .... 25 



Birds 25 



Remedial measures ., . . 34 



Selection and planting of trees. 46 



PAGE 



Common shade trees and their 

 principal insect enemies 49 



More important shade tree pests. 50 



Destructive borers 50 



Destructive leaf feeders 105 



Destructive sucking insects... 172 



The Battle of the Weak or In- 

 teresting Facts about Aphids . . 241 



More important forest tree pests. 253 



Enemies of deciduous trees. . . 256 



Wood and bark borers.. 256, 259 



Leaf feeders 258, 303 



Sucking insects 258, 329 



Explanation of plates a333 



Index a435 



Salt is Useless. Country Gentleman, Mar. 8, 1906, 71 :232*'^ 

 Salt has very little or no value in the lime-sulfur wash. 



Diversities Among New York JMosquitos. Reprint from Am. Mos- 

 quito Extermination Soc. Year Book 1 904-1 905 (p.34-64) Mar. 

 1906, p. 1-32, pi. 14 

 Issued Mar. 9. 

 A summarized discussion of the biologic and morphologic diversities 



obtaining among native species. 



