CHERRY PESTS—CHESTNUT CULTURE 
Schwarz, 1891, reports finding Bactri- 
dium cavicolle in breeding cages of Xyle- 
borus dispar, and supposes that they are 
predacious on the larvae and eggs of this 
insect. We have as yet found no natural 
enemies of this insect in Oregon, probably 
owing to its recent importation. 
(See also Lesser Shot Hole Borer, this sec- 
tion.—Ed. ) 
Bibliography of More Recent Literature 
1872—Hartig, Th. Ambrosia des Bostri- 
chus dispar. (Allgem Forst u. Jagd. 
Zeit Neu, Folg. 13. Jahrg. S. 73-74. 
Frankfort a. m., 1872.) 
1873—Schiodte, J. C. Fortegnelse overde 
i Danmark levende curculiones Na- 
turhistorisk Tidsskrift ved J. C. 
Schiodte 5 Raekke. 8 Bind s. 47-110. 
Kjobenhavn. 1872-1873, p. 103. 
1879—Hichhoff, W. Rates, Descriptio, Em- 
endatio eorum Tomicinorum, p. 320. 
1895—Judeich, Dr. J. F. und Nitsche, Dr. 
H. “Lehrbuch der Mitteleuropais- 
chen Forstinsektenkunde,” Vol. I, 
pp. 549-551. 
1896—Smith, E. F. Ambrosia (Amer. 
Nat. Vol. 30 [1896], No. 352, pp. 318, 
319). Some notes on the fungus 
food of Xyleborus. 
1896—Hubbard, Henry G. Ambrosia once 
more. (American Naturalist, Vol. 
30, p. 498, June [general] ). 
1897—Hubbard, Henry G. Ambrosia Bee- 
tles of the U. S. (Some miscellan- 
eous results of the work of the Di- 
vision of Entomology, U. S. Dept. 
of Agri., p. 22 [Bul. 7, Bureau of 
Entomology]). 
1898—Omerod, E. A. “A Handbook of In- 
sects Injurious to Orchard and Bush 
Fruits,” p. 185. 
1899—Harvey, F. L. and Munson, W. M. 
Apple Insects of Maine. (Bul. 56, 
Maine Agri. Exp. Sta., p. 112.) 
1899—-Lugger, Otto. Beetles Injurious to 
Fruit-Producing Plants. (Bul. 66, 
Division of Entomology, Minn. Agri. 
Exp. Sta., pp. 310-312.) 
1902——Cordley, A. B. 14th Ann. Rept. Ore- 
gon Agricultural College, pp. 60-61. 
1902—-Fletcher, James. Report of the En- 
tomologist and Botanist for 1901. 
799 
(Ann. Rept. Canada Experimental 
Farms for 1901, p. 249.) 
1905—-Fletcher, James. Report of the En- 
tomologist and Botanist for 1904. 
(Ann. Rept. Canada Experimental 
Harms for 1904, p. 240.) 
1905—Beauverie, J. Le Bois. 
Villars, edit, Paris. 
1909--Beauverie, J. Sur une maladie des 
pechers dans la vallie du Rhone. 
(L’ Horticulture Nouvelle, Lyon, 
1909.) 
1910—Beauverie, J. Les Bois Industriels, 
O. Doin, edit, Paris. 
1910—Beauverie, J. Les Champignous dit 
Ambrosia. (Ann. Des Sciences Na- 
turalles Botanique. Tome XI, No. 
Ganthier- 
1, pp. 31-75.) 
SPRING CANKER Worm. See under Apple 
Pests. 
TENT CATERPILLAR. See under Apple 
Pests. 
Tussock Morn. See under Apple Pests. 
WaLnut SCALE. See under Walnut 
Pests. ‘ 
Waite Praca Scare. See under Peach 
Pests, 
CHINESE APPLE. 
CHOKE BERRY. 
Chestnut Culture 
Commercial chestnut culture is begin- 
ning to take a place among the perma- 
nent horticultural industries of the United 
States. The enormous annual crops of 
small, sweet chestnuts, and the lack of 
appreciation of the value of the chestnut 
in the dietary of Americans have held 
back the systematic improvement of the 
American type into large, desirable kinds, 
and discouraged, for many years, the in- 
troduction of improved varieties from 
Europe or Asia. A few European seed- 
lings have been growing for nearly a cen- 
tury within fifty miles of Wilmington, 
Delaware, and Philadelphia, Pennsyl- 
vania, where the history of the European 
chestnut in America largely centers. In 
all this time, but few orchards or groves 
have been developed, and only within a 
few years have any of the seedlings been 
selected for commercial propagation. 
See Apple, Botany of. 
See Apple, Botany of. 
