122 BULLETIN 1380, U. S. DEPARTMENT OF AGRICULTURE 
Shakples, A.— Continued. 
1910. The laticiferous system of Hevea brasiliensis and its protective function. In 
Ann. Bot., v. 32. p. 247-251. 
Heavy scraping of the bark results in increased growth of saprophytic 
fungi. 
1916. Scorched trees and their treatment. In Asrr. Bui. Fed. Malay States, v. 5, 
p. 1-2. Also in Trop. Agr., v. 48, p. 56-57, 1917. 
If left untreated, boring beetles enter the tree through the scorched 
surfaces. The insects are followed by the fungus Ustulina zonata. 
191G. Ustulina zonata; preliminary report on further work. In Agr. Bui. Fed. 
Malay States, v. 4, p. 98-105. 
In continuation of Bui. 22, Dept. Agr. Fed. Malay States, 1915, by 
F. T. Brooks. Appears to be a wound parasite, usually entering 
through wounds in exposed lateral roots. Almost always found in 
trees attacked by boring beetles. 
1910. Ustulina zonata — a fungus affecting Hevea brasiliensis. Bui. Dept. Agr. Fed. 
Malay States 25. 27 p.. illus. 
A wound parasite, causing dry-root and collar rot. Article contains 
history, field observations, description of the fungus, culture experi- 
ments, inoculation experiments, and treatment. Summary by W. 
Nowell in Agr. News [Barbados], v. 15, p. 318, 1916. 
1917. Bark canker in Hevea brasiliensis. In Kew, Roy. Bot. Card. Bui. 1917, p. 
219—225. Bibliography, p. 225. 
Resume of previous work by Rorer, Rutgers, Fetch, Dastur, and 
others. 
1917. The significance of diseases in the economy of Malayan rubber plantations. In 
Kew, Roy. Bot. Gard. Bui. 1 : H T . p. L!25-22«>. 
A summary of the investigations of diseases of Hevea brasiliensis on 
the Malay Peninsula from 1913 to 1917. 
1918. Ustulina zonata (Lev.) Sace. on Hevea brasiliensis. In Ann. Appl. Biol., v. 4. 
p. 153-178, illus. Bibliography, p. 177. 
Deals with t!ie dry collar-rot on old rubber caused by Ustulina 
zonata. Disease is common on the .Malay Peninsula and in Ceylon, 
hut Dot yet reported in Java or Sumatra. 
1921. Estate treatment of mouldy rot. In Agr. Bui. Fed. Malay States, v. 9, p. 
27 7-2 7S. 
Abstract of a letter received from an estate manager on the sug- 
gestion of tin' mycologist, in order to obtain a reliable estimate of 
costs of treatment of moldy rot witli agrisol. 
1921. Treatment of mouldy rot disease by application of agrisol. In Agr. Bui. 
Fed. .Malax Slates, v. !i. p. 184-191. 
Describes successful treatment of moldy rot with a proprietary 
coal-tar disinfectant. 
1922. A consideration of recent work on the brown bast problem. In Malayan 
Agr. Jour., v. ]<». p. 155—170. 
Comparative resume" Of work done by the Brown Bast Investigation 
Committee on the Malay Peninsula and by Hands in Java. Both 
arrive at the conclusion that the disease is noninfectious and is 
probably induced by overtapping. Abstract in Rev. Appl. Mycol., 
v. 2, p. 232-233, 1923. 
1922. A preliminary account of observations on the fungi causing "brown root" 
disease. In Malayan Agr. Jour., v. 10, p. 181—183. 
Shows thai fungi causing the brown root differ on different hosts 
and in different countries. 
192.;. Annual report of the mycologist for 1922. In Malayan Agr. Jour., v. 11, 
p. 2(17-272. 
Rubber root diseases, brown-bast, moldy rot, etc., p. 267-269. 
1923. Pinal report on treatment of mouldy red disease with agrisol. In Malayan 
Agr. Jour., v. 11. p. 36-37. 
The production of resting spores by the causal fungus (Sphaeronema 
flmbriatum) makes complete eradication impossible. 
1923. Report on black fruit disease of pepper vines in Sarawak. In Malayan 
Agr. Jour., v. 11, p. 123. 
Refers to Ccphaleuros mycoidea (Karst.) on Hevea. 
1924. Some observations on root diseases of Hevea brasiliensis. In Malayan Agr. 
Jour., v. 12, p. 404-407. Also in Planters' < hron.. v. 20, p. 00-!>:',. 1925. 
Questions the proof that Oanoderma ferreum and Fomes pseudo- 
ferr&us are identical, also that Fomea lamooensis is the cause of brown 
root-rot with cultural evidence. Variability of Ustulina zonata em- 
phasized. 
1925. Annual report of the mvcologist for 1924. In Malayan Agr. Jour., v. 13, 
p. 214-219. Rubber diseases, p. 214-216. 
1925. Brown bast disease of rubber trees. In Rpt. Proc. Imp. Bot. Conf. London, 
1924, p. 163-170. Also printed in Trop. Agr., v. 64, p. 323-328, 1925. 
"After three years" experimental work in the field, the view is ad- 
vanced that the affection is a purely physiological disturbance result- 
ing from the extraction of excessive quantities of latex." 
1925. A collar disease of rubl>or seedlings. In Malayan Agr. Jour., v. 13, p. 150-1! 53, 
Due to Diplodia sp. A similar disease reported from Java and 
Ceylon is attributed to Prstalozzia paJmarum, no trace of which was 
found in the diseased Malayan seedlings. Abrupt changes in climatic 
conditions, combined with the presence of a fungus, may possibly ac- 
count for the trouble. 
