RUBBER (HEVEA) DISEASES 123 
Sharples, A. and Belgrave, W. N. C. 
1917. Memorandum recommending- clean clearing of rubber estates in Malaya. In 
Agr. Bui. Fed. Malay States, v. 6, p. 81-91. 
(lean clearing is recommerided as preventing attacks of root dis- 
eases, particularly Poria hypolaterita and Ustulina zonata. 
• and others. 4 
1920. Black stripe and mouldy rot of Ilevea brasiliensis. Bui. Dept. Agr. Fed. 
Malay States 31, 61 p., illus. Bibliography of black stripe, p. 60. 
A species of Phytophthora was isolated which is believed to be the 
cause of black-stripe canker. Moldy rot, a disease of recently tapped 
surface, is found to be caused by Sphaeronema fimbriatum. Summary 
in Trop. Agr., v. 55, p. 373-379, 1920, quoted from Malayan Tin and 
Rubber Jour., v. 9, no. 19. 
and Lamrourxe, J. 
1923. Preliminary report on brown bast experiments in Malaya. In Malayan Agr. 
Jour., v. 11, p. 30-35. Also in Trop. Agr., v. 60, p. 360-364, 1923. 
Reports on tapping experiments in relation to brown-bast and ob- 
servations on the resistance of bud grafts to disease. 
1924. Field experiments relating to brown bast disease of Ilevea brasiliensis. In 
Malayan Agr. Jour., v. 12, p. 290-343. 
Evidence obtained from prolonged tapping experiments is strongly in 
favor of the physiological origin of brown-bast. 
Shaw, F. J. F. 
1919. Economic botany. III. Mycology. In Ann. Rpt. Bd. Sei. Advice India, 
1917-18, p. 35-40. 
Investigations on black-thread disease reported. 
Sheltox-Agar, W. R. 
1917. Clean clearing, pests and diseases. In Agr. Bui. Fed. Malay States, v. 5, p. 
300-300. Also in Proc. Agr. Conf. Malaya, 1st, 1917. p. 37-43. 
Divides diseases into two classes, fatal and amenable to treatment. 
Fatal include all root diseases; amenable, stem and bark diseases. 
Gives recommended treatment of diseases but no descriptions. 
Simmoxds, II. W. 
1921. A bacterial disease of Para rubber. In Circ. Dept. Agr. Fiji Isl., v. 2, p. 45. 
Bark rough and stained reddish brown. Does not seem to be highly 
infective. See also Garment, A bacterial disease of rubber trees. In 
Circ. Dept. Agr. Fiji Isl., v. 2, p. 46, 1921. Abstract in Rev. Appl. 
Mycol., v. 1, p. 39, 1922. 
Simpsox, S. 
1916. Annual report of the government botanist (based on work of T. D. Maitland, 
with notes added by W. Small) . In Ann. Rpt. Dept. Agr. Uganda, 1916, p. 
44-47. 
Diseases of Hevea mentioned: Die-back (LastompJodHa tlirobrojnae) ; 
root diseases (Hymenocluiete noxia?, Fomes lucidust, Fomes australisf). 
Small. W. 
1914. Report by the botanist. In Ann. Rpt. Dept. Agr. Uganda, 1914, p. 59-62. 
Brown root disease ( Hj/menochaele noxia) ; canker {Phytophthora 
faberi) ', die-back (Gloeosporium alooruorwn, Phyllosticta ramicola, 
and Thyridaria tarda) ; fasciation. 
1915. Annual report of the government botanist for 1914-1915. In. Ann. Rpt. Dept. 
Agr. Uganda, 1915, p. 57-70. 
Diseases of Para rubber enumerated include: Hymenoohaete noxia, 
Thyridaria tarda, PhyUostieta ramicola, and Phoma heveae (p. 67-68). 
1920. Diseases of Hevea brasiliensis in Uganda. Circ. Dept. Agr. Uganda 3, 12 p. 
Arranged according to part of tree attacked. Mentions diseases 
found in other regions but not yet appearing in Uganda. 
1921. Notes on species of Colletotrichum and Phoma in Uganda. In Kew, Rov. Bot. 
Gard. Bui., 1921, p. 57-67. Abstract in Rev. Appl. Mycol., v. 1, p. 3-6, 
1922. 
1922-24. Annual report of the Government mycologist, 1921-1922. In Ann. Rpt. 
Dept. Agr. Uganda, 1921, p. 49-53 ; 1922, p. 27-29. 
Smith, E. 
1908. Report on diseased rubber trees forwarded from Puak. In Agr. Bui. Straits 
and Fed. Malay States, v. 7, p. 90-92. 
A bark disease caused by a fungus resembling Helicobasidium. A 
sporiferous bacillus was also isolated. 
Smith, II. H. 
1911. Notes on soil and plant sanitation on cacao and rubber estates. 032 p.. illus. 
London. Rubber diseases, p. 335-358. * 
Sxowdex, J. I). 
1921. Report of the Government botanist . . . 1st April to 31st December, 1920. 
In Ann. Rpt Dept. Agr. Uganda, 1920, p. 43-46. 
Diseases of Ilevea rubber: p. 43-44. Lists briefly 14 fungi. Ab- 
stract in Rev. Appl. Mycol., v. 1, p. 206, 1!>L , 1 > . 
Sohxgex, N. L.. and Foe. J. G. 
1914. Die Zersetzung des Kautschuks durch Mikroben. In Ccntbl. Bakt., Abt. 2, Bd. 
40, p. 87-98, illus. 
Bacteria and molds on prepared rubber. 
South, F. W. 
1911-12. Report on the prevalence of some pests and diseases in the West Indies. 
Fungus diseases, 1909 10, 1910/11. In West Indian Bui., v. 11. p. 73- 
85; 12, p. 425-443. See also Ballou, II. A. Report . . . 1912. NoweU, 
\Y. Report . . . 1913. 
