RUBBER (HEVEA) DISEASES 103 
Bertrand, II. W. R. 
1924. Phvtophthora leaf-fall of rubber. In Trop. Agr., v. 62, p. 144-146. 
" The various forms of Phytophthora are, in the writer's opinion, 
responsible for more damage to estates than all the other diseases 
put together." 
Betche, E. 
1909. A parasitic disease which kills cocoa and rubber trees. In Trop. Agr., v. 32, 
p. 502. 
Hymenochaete noxia, reported from Samoa. See also Ridley, Another 
funerus parasite on rubber, in Agr. Bui. Straits and Fed. Malay States, 
v. 8, p. 312, 1909. 
BlRKINSHAW, F. 
1923. Cover crops and the spread of F'omes lignosus. In Malayan Agr. Jour., v. 11, 
p. 216. Also in Trop. Agr., v. 61, p. 296-297, 1923. 
Fungus spreads more rapidly on cover crops than on clean weeded 
land. 
Bishop, R. O., and Greexstreet, V. R. 
1923. Dichlorhydroquinone as a preventative of spot disease on rubber. In Malayan 
Agr. Jour., v. 11, p. 129-131. 
Experiments with a commercial preparation for the prevention of 
mold on prepared rubber. 
Blommendaal., H. N. 
1921. Het optreden van witte vlekken op crepe. In Arch. Roibbercult. Nederland.- 
Indie, jaarg. 5. p. 361-366. (Meded. Alg. Proefstat. A. V. R. O. S. Rubber- 
serie no. 33.) 
Report on experiments with bacteria causing spotting of prepared 
rubber. 
Bobilioff, W. 
1919. Over de oorzaak der bruine binnenbastziekte van Hevea brasiliensis. In Arch. 
Rubbercult. Nederland.-Indie, jaarg. 3, p. 172-178. (Meded. Physiologie- 
fonds.) 
English summary, The cause of brown-bast of Hevea brasiliensis, 
p. 178. The cause of brown-bast is physiological, and the severity of 
the disease probably depends upon the general physiological conditions 
of the trees. 
1921. Over het uitdunnen en het optreden van bruine-binnenbastziekte bij Hevea. In 
Teysmannia, jaarg. 32, p. 141-142. 
Summary of article by Harmsen in Nederland.-Ind. Rubbertijdschr., 
jaarg. 5, 2 de halfjaar, p. 745, 1921. 
1924. Over een geval van degeneratie der melksapvaten van Hevea. (With sum- 
mary: On a case of degeneration of latex vessels in Hevea.) In Arch, 
Rubbercult. Nederland.-Indie, jaarg. 8, p. 861-868, illus. 
Br., L. 
1909. Maladie des racines de l'Hevea. In Jour. Agr. Trop., ann. 9, p. 48. 
Review of articles by Bernard, Gallagher, and Petcfr on Hevea root 
diseases. 
Brick, C. 
1909. Einige Krankheiten und Schadigungen tropischer Kulturpflanzen. In Jahres- 
ber. Angew. Bot., jahrg. 6 (1908), p. 223-258, illus. Also in Ber. Stat. 
Pflanzenschutz Hamburg 10 (1907/08), p. 223-258, 1909. 
" Kautschukbaume," p. 244-253. Lasiodiplodia nigra on Hevea 
brasiliensis from Ceylon ; Hymenochaete noxia on Castilloa elastica in 
Samoa. 
Brooks, F. T. 
1914. A new disease of plantation rubber in Malaya. In Agr. Bui. Fed. Malay 
States, v. 3, p. 105-107. 
" The fungus is evidently one of the Xylariaceae and appears to be 
similar to and possibly identical with Ustulina zonata." Affects collar 
and neighboring roots. 
1914. Parasitic flowering plants on rubber trees. In Agr. Bui. Fed. Malay States, 
v. 2, p. 165-166, 
Later identified as species of Loranthus ; see his Species of Loranthus 
on rubber trees, in Agr. Bui. Fed. Malay States, v. 3, p. 7-9, 1914. 
1914. Pink disease. In Agr. Bui. Fed. Malay States, v. 2, p. 238-242. 
Caused by Corticium salmonioolor or 0. javanicum. Recorded on 
Para rubber in Java, Borneo, Sumatra, Ceylon, Burma, and southern 
India as well as on Malay Peninsula. On a great variety of other 
hosts including native plants, from which it probably has spread to 
cultivated plants. 
1914. Root disease of Para rubber caused bv Sphaerostilbe repens. In Agr. Bui. 
Fed. Malay Stairs, v. :'., p. 40-43. 
Sometimes lives solely as a saprophyte, but the author has found it 
advancing into living tissues and therefore acting as a parasite. 
1914. Species of Loranthus on rubber trees. In Agr. Bui. Fed. Malay States, v. 3, 
p. 7-9. 
Semiparasitic mistletoes reported from Negri Sembilan. 
1915. A disease of plantation rubber caused by Ustulina zonata. In New Phytol., 
v. 14, p. 152-164, illus. References, p. 164. 
Not previously recorded on Malay Peninsula. The disease chiefly 
affects the collar and root systems of old rubber trees. 
1915. A disease of plantation rubber caused bv I'stulina zonata. Bui. Dept. Agr. 
Fed. Malay States 22, 11 p.. illus. 
Chiefly affects the collar and root system of old rubber trees. Found 
in Ceylon and on Malay Peninsula. 
