INSECTS AFFECTIXG PARK AND WOODLAXD TREES 



219 



Ptelea trifoliata Linn. Hoptree. Acer s a c c h a r i n u ni . \\'eir's cut 



Pyrus communis Linn. Pear. leaved maple. 



Pyrus sinensis Lindl. Sand pear, in- Acer p 1 a t a 11 o i d c s Linn. Norway 



eluding Kieffer. maple. 



Pyrus baccata Linn. Act in id ia arguta Mig. (.\. p o 1 y- 



Pyrus malus Linn. Apple. gam a). 



Pyrus sp. Crab apiple. Aesculus h i !> p o c a s t a n e u m Linn. 



R i b e s o .\ y a c a n t h o i d e s Linn. Goose- Horse-chestnut. 



berry. A Inns sji. Alder. 



Ribes aureum Pursh. Missouri or Ampelopsis (j u i n ([ u e f o 1 i a Michx. 



flowering currant. N'irginia creeper. 



Ribes rubrum Linn. Currant. ISetula sp. liirch. 



Ribes nigrum Linn, lilack currant. 15 e t u 1 a alba Linn. Cut lea\cd white 



Rosa sp. Rose. birch. 



Rosa Carolina Linn. I! u .x u s spi. liox. 



Rosa 1 u c i d a Ehrli. Cast a n e a a m eric a n a Raf. Chestnut. 



R o s a vi r g i n i a n a Mill. Catal[)a sp. 



Rosa rugosa Thunb. Catalpa bignonoides ^\'alt. Com- 



Salix sp. Willow. mon catalpa. 



S a 1 i X 1 u c i d a Muhl. C e a n o t h u s a m e r i c a n a Linn. 



Salix pentandra Linn. Laurel Celt is occiden talis Linn. 



leaved willow. C e r c i d i p h y 1 1 u m j a j) o n i c u m Sieb. 



Salix vitellina Linn. & Zucr. 



Salix b a b y 1 o n i c a Linn. Weeping Citrus a u r a n t i u m Linn. 



willow. C o r n u s a 1 t e r n i f o 1 i a Linn. 



Salix h u m i 1 i s Marsh. C o r n u s s t o 1 o n iter a .Michx. 



Salix i n c a n a Schrank. C o r n u s c i r c i n a t a L'Herit. 



Sorb us sp. Mountain ash. Corn us a m o m u m Mill. 



Sorb us americana Marsh. ,\meri- Cornus candidissima Marsh. 



can mountain ash. Cornus florid a Linn. 



S o r b u s a u c u p aria Linn. European Cornus f 1 n r i d a. Red flowering cornus. 



mountain ash. I) e u t z i a s|). 



Sorb us melanocarjia C. Koch. Diospyros virginiana Linn. Per- 



(.\ronia nigra Koehne.) Pihu k simmon. 



chokeberrv. Elaegnus sp. 



S V m p h o r i c a r [) u s r a c e m o s u s Elaegnus 1 o n g i p e s Gray. Silver 



Mich.x. Snowberry. thorn. 



Syringa vulgaris Linn. Lilac. Eucalyptus sp. 



Syringa p e r .s i c a Linn. Persian lilac. Euonymus s]). 



T i 1 i a s]x Basswood, Linden. F i c u s c a r i c a Linn. Fig. 



T i I i a americana Linn. .American F o r s y t h i a sp. 



linden or basswood. Fraxinus sp. Ash. 



Toxylon pomiferum Raf. Osage F' r a x i n u s americana Linn. White 



orange. ash. 



L7 1 m u s sp. Elm. G 1 e d i t s c h i a t r i c a n t h o s Linn. Honey 



LJ 1 m u s americana Linn, .\merican locust. 



elm. Hibiscus svriacus Linn. .Shrid)by 



Ulmus c a m p e s t r i s Smith. English or althea. 



European elm. Hicoria ]) e c a n Brilt. Pecan nut. 



luglans nigra Linn. Black walnut. 



Occasionally or rarely infested juglans regia Linn. Persian or Eng- 



Acer sp. .Maple. lish walnut. 



Acer saccharin um Linn. Silver Kalmia latifolia T.inn. Mountain 



maple. laurel. 



