RUBBEB (HEVEA) DISEAS 111 
Kok, G. L. J. D. 
1915. Gropne vortelschimmel. In Alsr. Ver. Rubber-planters 0< - natra, 
Meded. Adviseur, 1915 16. p. 16-17. * 
Describes a blue-green Congas found on the roots of lb 
Koobdkbs, S. H. 
1906. Xotiz iiber Gioeosporium elastieae Cooke et Massee. In Kotizbl. K. Bot. 
Gartens u. Mus. Berlin, Bd. 4. p. 251—252. 
e identity of G~ 
chum r '- 
1907. Botanische Cntersuchungen iiber einige in Java verkommende Pilz^, beson- 
• Better bewohnend tisch auftretende Arten. Verhandl. 
K. Akad. Wetensch. Amsterdam 4 (Sect. 2, Dee! 13), 264 p., iilus. 
Kcypeb., J. 
1911. Eine Heveablattkrankheit in Surinam. In Rec. Trav. Bot. Xeerland.. v. 8, 
p. 371-379, ill 
Same article without Latin diagi isis E dcladium-ziekte op 
Hevea) in Bui. Dept. Landb. Surinam 28, p. 3-10, 1912. 
caused by Fusicladium macrosporum-, which attacks Hevea I 
ensis and H. . Summary in Jour. Bd. Agr. Bri 
v. 6, p. IO0-H14. 101:;. 
1913. Een paar el-enaardi^e versehijnselen bij Hevea brasiliensis. In Bui. 
Landb. Surinam 30, p. 4^ •" 
1013. Maserbildung bei Hevea brasiliensis. In Rec. Trav. Bot, Neeriand., v. 10, 
p. 137—146. illus. 
1914. Die erneuerung von Hevea-bast nach dem anzapfen. In Internat. Rubber 
Cong, and Exhib. Batavia., 1914, Ri 
Baa . - rvations made in Paramaribo, uutch Guiana. 
Lamont, X.. and oth 
1917. Rubber cultivation in Trinidad and Tobago. Report of the special com- 
mittee of the Board of Agriculture. / . Bui. Dept. Agr. Trinidad and 
Tobago, v. 1G. p. 95-127. 
Gnly disease affecting Hevea in the region appears to be Soot] 
American leaf disease. 
La Rue. C. D. 
1921. Lightning injury in Hevea brasiliensis. (Abstract.; In Phytopathology, v. 
11, p. 46. Also in :: - v. 13, p. 125, 1921. 
Progi - . b. of tiss s ime de- 
stroction organism. Cultures soot --nee of DipU ■ 
but this is now known to vx and not th the 
death of the :: 
1922. Helminthosporium heveae Perch in Sumatra. C Abstract.) In Phvtopathologv, 
v. 12, p. 60. 
Usually attacks young trees, but occasionally found on old ones ; 
in some cases the leaves were riddled with spots, but the di 
does not cause defoliation. 
1022. Lightning injoj 1 brasiliensis. In Phytopathology, v. 12, p. 38 
re frequently injured or killed by 
lightning. Such cases of injury are usually wrongly diagn - 
Diplodia di 
1923. Helminthosporium heveae in Sumatra. In Phytopathology, v. 13. 
CsuaUy infests nurseries, but sometimes attacks mature ti es. The 
spores of the fungus in Sumatra app smaller than tho>e 
measured by Petch in Ceylon. 
1923. Two unreported parasites of Hevea brasiliensis. In Papers M 
Sri. Arts and Letters, v. 2, p. 60-71. 
Sclerotium sp. I . ;:ze. 
1024. Notes on the failure of tl op of Hev ::sis on the east coast 
of Sumatra. In Papers Mich. Acad. S 
itn alborul constantly - ted with phenomena 
of fruit and flower fall. 
and Bartlett, H. PI. 
1923. Diplodia :' Hevea bi -. In Papi - Arts 
and Letters, v. 2. p. 91—107. 
Diplodia is believed to be cause of seed deterioration, moldy rot. 
and black-thread. 
1923. A leaf-fall disease of Hevea brasiliensis Muell.— Arg. due to Gloeosporium 
alborubrum Petch. In Papers Mich. A l Arts and 1 
p. 73 
disease a] Logical in the sense that the 
infection to which the - - - attributed produces it> character- 
istic symptoms only when the me1 deal 'able. 
Lee, H. a., and Yates. II - 
1919. Pink disease in citrus. In Philippine Jour. Sci.. v. 14. p. 657-671. Also 
in Trop. Agr., v. 54, p. 103-107, I 
Not yet reported on i&iliensis in the Philippine Is! 
1920. The distribution of pink disease. In Philippine Ag . 13, p. 115-116. 
[Leeciiman, A.] 
1913. Rubber disease — a warni: . r. Bd. Agr. Brit. Guiana, v. •'>. p. 10 
Calls attention to Kuyper's Bui. 28, Surinam Dept. Landb.. on Fusi- 
cla'Uu m m acrospo n> m , 
