(143) 
Fawceett, H. S., Fighting a fungus, Pythiacystis citrophthora, in the citrus orchards. 
(Univ. Calif. Journ. Agric. III [1916], p. 339—343, 356, Fig. 1-3.) 
Fields, W. S. and Elliott, John A. Making Bordeaux mixture, and some other spraying 
problems. (Arkansas ‘Agric. Exp. Stat. Bull. CLXXII [1920], 12 pp., 1. Pl.) 
Figueroa, C. A. The mottling disease of cane and the sugar production of Porto Rico. 
(Journ. Dept. Agric. Porto Rico III [1919], 1920 p. 35—41.) 
Fink, B. Notes on the powdery mildews of Ohio. (Ohio Journ. Sci. XXI [1921], 
p- 211—216.) 
Fisher, D. F. and Brooks, C. Drouth-spot and related physiological diseases. (Agric. 
Journ. Brit. Columbia V [1920], p. 290-293.) 
Folsom, D. Potato leaf roll. (Maine Stat. Bull. Nr. CCXCVII [1921], p. 3752, 
Pl:.I--IV, 3. Fig.) / 
Fonzes-Diacon, M. Sur les bouillies cupriques. (Compt. Rend. Acad. Sci. Parig CLX 
[1915], p. 528—530.) Fe 
Forbes, A,C. Occurrence of Keithia thuyina in Ireland. (Gard. Chron. 3. Ser. LXVIII 
[1920], p. 228—229.) N 
Frank, A. Crown gall, a serious disease. (West. Washington Sta. Bimo. Bull. IX 
[1921], p. 51—53, 1 Fig.) 
Fürstenberg, C. Über die Bekämpfung der Obstbaumschädlinge. a LXX 
[1921], p- 107—116.) ’ 
Fulmek, Leopold und Stift, A. Über im Jahre 1920 erschienene bemerkenswerte 
Mitteilungen auf dem Gebiete der tierischen und pflanzlichen Feinde der Kartoffel- 
 pflanze. (Centra]bl. f. Bakt. etc. II. Abt. LIV [1921], p. 42529) 
Gardner, Max W. The mode of dissemination of fungus and bacterial diseases of 
plants. (Rept. Michig. Acad. Sci. XX [1918], -p. 357—423.) 
— and Kendriek, James B. Soybean Mosaic. ..(Journ. Agric. Research Washington 
N XXH [1921], p. 111-114, Plates XVHIL-xIx.) 
— — Turnip Mosaic. (Ibidem p. 123—124, Pl. XX.) 
— —— Tomato bacterial spot and seed disinfection. (Indiana Stat. Bull. . COLIN, 
15 pp., 10 Fig.) 
Garman, P. The relation of certain greenhouse pests to the transmission of a En, 
nium leaf spot. (Maryland Stat. Bull. CCXXXIX [1920], p. 57—80, 7 Fig.) 
Gilbert, Alfred H. Certified seed inspection in Vermont. (Potato Mag. III [1921], 
p- 6, 20—21, 26.) i 
Godfrey, G. H. A seed-borne Sclerotium and its relation to a rice-seedling disease. 
(Phytopathology X [1920], p. 342.) 
— and Harvey, R. B. Motion pictures of zoospore, production in Phytophthora. 
(Phytopathology XI [1921], p- 145—146, Pl. VI.) \ 
Goß, R. W. Temperature and Humidity Studies of some Fusaria Rots of the Irish 
Potato. (Journ. Agric. Research-Washington XXI1[1921], p: 65—80, PI.X—XL) 
Gouaux, C. B. Mosaic disease of sugar cane in Louisiana. BIBEE am & i 
Sugar Manufacturer LXV [1920], p. 269.) } BER, 
. Griesbeck, A. Die Erreger der DEREN. bei Kartoffeln. 
.  Zeitg. LXIX [1920], p. 37-38.) 2 
' Guyton, T.L. The Chrysanthemum Gau Midge. — 
(Bull. Ohio Agric. Experim. Stat. Nr. al 2 
Hahn, 6.6. Phomopsis juniperovora, anew r 
 (Phytopathology X [1920], p. 240-258, :1 Pl 
Hall, C. J. J. van. Ziekten en Plagen der Cultuurge 
1920: en Be Plantenziekten 
