INSECTS AFFECTIN-G PARK AND WOODLAND TREES 



219 



Ptelea t r i f o 1 i a t ;i Linn. Hoptree. 

 P y r u s com m u n i s l.inn. I'ear. 

 P }• r 11 s sinensis Lindl. Sand pear, in- 

 cluding Kietter. 

 Pyrus baccata Linn. 

 Pyrus inalus Linn. Apple. 

 Pyrus sp. Crab n])ple. 

 R i b e s o X V a c a n t ii o i d e s Linn. (loose- 



berry. 

 Ribes a u r e u ni Pursh. Missouri or 



flowering currant. 

 Ribes rubruni Linn. Currant. 

 Ribes nigrum Linn. Black, currant. 

 Rosa sp. Rose. 

 Rosa Carolina Linn. 

 Rosa lucida Ehrh. 

 Rosa virginiana Mill. 

 Rosa rugosa Thunb. 

 S a 1 i X sp. Willow. 

 S a 1 i X lucida Muhl. 

 Salix pentandra Linn. Laurel 



leaved willow. 

 Salix vitellina Linn. 

 Salix baby Ionic a Linn. Weeping 



willow. 

 Salix humilis Marsh. 

 Salix i n c a n a Schrank. 

 Sorbus sp. Mountain ash. 

 Sorbus americana Marsh. Ameri- 

 can mountain ash. 

 Sorbus aucuparia Linn. European 



mountain ash. 

 Sorbus melanocarpa C. Koch. 



(Aronia nigra Koehne.) Black 



chokeberry. 

 S y m p h o r i c a r p u s r a c e m o s u s 



Michx. Snowberry. 

 Syringa vulgaris Linn. Lilac. 

 Svringa persica Linn. Persian lilac. 

 T i 1 i a sp. Basswood, Linden. 

 Tilia americana Linn. American 



linden or basswood. 

 T o X y 1 o n j) o m i f e r u m Raf. Osage 



orange. 

 L^ 1 m u s sp. Elm. 

 U 1 m u s americana Linn. American 



elm. 

 U 1 m u s c a m p e s t r i s Smith. English or 



European elm. 



Occasionally or rarely infested 

 Acer sp. Maple. 



Acer saccharinum Linn. Silver 

 maple. 



Acer saccharinum. Weir's cut 

 leaved maple. 



Acer platanoides Linn. Norway 

 maple. 



Actinidia arguta Mig. (A. j) o 1 y- 

 ga m a). 



Aesculus h i p ])oc as t a n eu m Linn. 

 Horse-chestnut. 



Ainu s sp. Alder. 



A m 1) e 1 o p s i s ii u i n q u e f o 1 i a Michx. 

 Virginia creeper. 



B e t u 1 a sp. Birch. 



Bet u la alba Linn. Cut leaved white 

 birch. 



B u X u s sp. Box. 



C a s t a n e a americana Raf. Chestnut. 



Ca t a 1 p a sp. 



Catalpa bignonoides Walt. Com- 

 mon catalpa. 



C e a n o t h u s americana Linn. 



Celtis occidentalis Linn, 



C e r c i d i p h )• 1 1 u m j a p o n i c u ni Sieb. 

 & Zucc. 



Citrus a u r a n t i u m Linn. 



C o r n u s a 1 1 e r n i f o 1 i a Linn, 



Corn us stolonifera Michx. 



Cornus circinata L'Herit. 



Corn us amomum Mill. 



Cornus candidissima Marsh. 



Cornus florida Linn, 



Cornus florida. Red flowering cornus. 



D e u t z i a sp. 



Diosjiyros virginiana Linn. Per- 

 simmon. 



E 1 a e g n u s sp. 



Elaegnus longipes Gray. Silver 

 thorn. 



Eucalyptus sp. 



E u o n y m u s sj:). 



Ficus carica Linn. Fig. 



F o r s y t h i a sp. 



F r a x i n u s sp. Ash. 



Fraxinus americana Linn. White 

 ash. 



Gleditschia tricanthos Linn, Honey 

 locust. 



Hibiscus syriacus Linn, Shrubby 

 althea. 



Hicoria pecan Britt. Pecan nut. 



Juglans nigra Linn. Black walnut. 



Juglans regia Linn. Persian or Eng- 

 lish walnut. 



Kalmia lati folia Linn. Mountain 

 laurel. 



