Phytophthora Canker and Pod Rot--Continued. 



Witches Broom — Continued. 



827. BUNTING, R. H. Dead cocoa pods— a menace to 

 the cocoa industry. Gold Coast Agr. & Com. Soc. J. 2: 

 6-8, illus. Oct. /Dec. 1922. 24 G562 



Urges removal from trees of pods infested with 

 Phytophthora faberi to reduce spread of black-pod 

 disease. 



828. CAMPS, F. O. El cincer del cacao. Dominican 

 Repub. Sec. de Estado de Agr. e Inmigracion. Rev. de 

 Agr. 16:53-55. May 31, 1920. 8 R323 



Nectria. 



829. CRANDALL, B. S. Three Phytophthora diseases 

 observed in the region of Tingo Maria, Peru. Plant Dis. 

 Rptr. 29:536. June 15, 1945. 1.9 P69P 



Includes Phytophthora palmivora on cacao pods. 



830. DADE, H. A. A comparison of the pathogenicity 

 of various strains of Phytophthora faberi, Maubl., on 

 cacao pods, etc., in the Gold Coast. Gold Coast Dept. 

 Agr. B. 13:89-92. 1928. 24 G56B 



831. DADE, H. A. The determination of incidence of 

 black pod disease of cacao. Gold Coast Dept. Agr. B. 23: 

 122-128. 1930. 24 G56B 



832. DADE, H. A. Further notes on cushion canker of 

 cacao. Gold Coast Dept. Agr. B. 16:135-138, illus. 1929. 

 24 G56B 



Phytophthora faberi. 



833. DADE, H. A. The relation between diseased 

 cushions and the seasonal outbreak of "black pod" 

 disease of cacao. Gold Coast Dept. Agr. B. 13:85-88, 

 3 col. pi. 1928. 24 G56B 



Disease caused by Phytophthora faberi, Maub. 



834. DEMANDT, E. Ubertragung der kakaofaule 

 durch ranch. Tropenpflanzer 39:304-306. July 1936. 

 26 T75 



Describes experiment conducted in Samoa in 1915 

 against Phytophthora faberi Maubl. 



835. HALL, C. J. J. VAN. Cacaokanker. Teysmannia 

 31:106-113. 1920. 26 T31 



836. HARTLEY, C. Cacao canker in Java. (Abs.) 

 Phytopath. 15:44. Jan. 1925. 464.8 P56 



Abstract of paper presented at 16th annual meeting of 

 American Phytopathological Society. 



837. MAUBL ANC, A. La pourriture brune du 

 cacaoyer. Agron. Colon. 6:177-184, illus. Ref. June 

 1922. 26 Ag812 



History, distribution, and character of the disease, the 

 fur^us causing it, development of the disease and injuries, 

 and treatment. 



838. NEWHALL, A. G. An annotated bibliography of 

 some of the more important papers on the Phytophthora 

 pod rot of cacao (gleaned mostly from Review of Applied 

 Mycology 1922 to 1948, arranged chronologically), n. p., 

 1949? 21 p. 464.1 N45 



839. NOWELL, W. The disposal of black pods and 

 cacao husks. Agr. Soc. Trinidad & Tobago, Proc. 23: 

 245-248. June 1923. 8 T73 



Practical measures. 



840. OBENG, J. J. The non-toxicity [to cacao tissues] 

 of the secretions of Phytophthora faberi-Maubl. Gold 

 Coast. Dept. Agr. B. 16:139-140, illus. 1929. 24 G56B 



841. REINKING, O. A. Comparative study of 

 Phytophthora faberi on coconut and cacao in the 

 Philippine Islands. J. Agr. Res. 25:267-284, illus. Aug. 

 11, 1923. Ref. 1 Ag84J 



Fur^us strain causing coconut budroot and blackrot 

 and canker of cacao. 



842. SALAZAR HERNANDEZ, M. Phytophthora pod 

 rot of cacao. (Summary). Cacao Inform B. 1(16):1; 

 (17):l-2; (18):4. Feb.-Apr. 1949. 68.38 Cll 



843. WEST, J. Black pod of cacao. Experimental 

 control on native farms. Nigeria Agr. Dept. B. 11:55-65. 

 Ref. 1936. 24 N563B 



Includes all forms of pod disease. 



844. WRIGHT, J. A note on the saprophitic existence 

 in nature of Phytophthora palmivora (Butler), the causal 

 organism of black pod disease of cacao. Gold Coast Dept. 

 Agr. B. 23:251-254. 1930. 24 G56B 



Phytophthora palmivora (P. faberi). 



Witches Broom 



845. ASHBY, S. F. Witch-broom disease of cocoa. 

 The latest methods of control. West India Com. C. 40: 

 529. Dec. 31, 1925. 8 W524 



846. BAKER, R. E. D., and COPE, F. W. A report on 

 witches' broom disease in Grenada. Caribbean Comn. 

 Monthly B. 2:327-328. June 1949. 280.9 C19 



Includes suggested policy for control. 



847. BAKER, R. E. D., and CROWDY, S. H. Studies 

 in the witches' broom disease of cacao caused by 

 Marasmius perniciosus Stahel. Pt. I-II. Imp. Col. Trop. 

 Agr. Trinidad. Dept. Mycol. & Bact. Mem. 7-8, 2 pts., 

 illus. Ref. Jan. 1943-Jan. 1944. 451 Sa28 



Contents: Pt. I, Introduction, symptoms and etiology; 

 Pt. II, Field studies and control measures. 



848. BAKER, R. E. D., and CROWDY, S. H. Witches' 

 broom disease investigations. I-II. Trop. Agr. [Trinidad] 

 18:107-116; 19:207-209. Apr. 1941-Nov. 1942. 26 T754 



I, Seasonal variations in intensity of infection and their 

 effect on control methods; II, Notes on the susceptibility 

 of I. C. S. selections at River Estate to witches broom 

 disease of cacao. 



849. BAKER, R. E. D. Witches' broom disease inves- 

 tigations, m-IV. Trop. Agr. [Trinidad] 20:5-12, 156-158. 

 Ref. Jan.-Aug. 1943. 26 T754 



ni. Notes on the occurrence of witches broom disease 

 of cacao at River Estate, 1939-42; IV, Further notes on 

 the susceptibility of I. C. selections at River Estate to 

 witches broom disease of cacao. 



850. BAKER, R. E. D., and MCKEE, R. M. Witches 

 broom disease investigations, VI. The infection of flower 

 cushions and pods of cacao by Marasmius perniciosus 

 Stahel. Trop. Agr. [Trinidad] 20:188-194, illus. Ref. 

 Oct. 1943. 26 T754 



851. BAKER, R. E. D., and DALE, W. T. Witches' 

 broom disease investigations, VIII-XI. Trop. Agr. 

 [Trinidad] 21:170-176, 196-199. Sept. -Oct. 1944. 



26 T754 



Vin, Observations on fan broom formation and loss of 

 pods at River Estate from September 1942 to September 

 1943; IX, Loss of pods at River Estate; results to April 

 1944; X, Loss of pods in I. C. S. clones at River Estate 

 during 1943; XI, Observations on the effect of planting 

 interval on witches broom disease at River Estate. 



852. BRITON- JONES, H. R., and CHEESMAN, E. E. 

 Witch broom control. A new aspect of witch broom 

 control in Trinidad. Trop. Agr. [Trinidad] 8:79-89, illus. 

 Ref. Apr. 1931. 26 T754 



Discusses inoculation experiments, laboratory experi- 

 ments, weather, various cultural practices, suscepti- 

 bility, and suggested methods of control. 



853. CARR, A. W. [Account of his recent visit to 

 Surinam to study the effects of witch broom disease on 

 the cocoa industry of that country.] Agr. Soc. Trinidad 

 & Tobago. Proc. 28:457-471. Nov. 1928. 8 T73 



854. DALE, W. T. Witches' broom disease investiga- 

 tions, XII. Further studies on the infection of cacao pods 

 by Marasmius perniciosus Stahel. Trop. Agr. [Trinidad] 

 23:217-221. Dec. 1946. 26 T754 



855. DALE, W. T. Witches' broom disease of cacao 

 in Grenada. Trop. Agr. [Trinidad] 26:23. Jan./June 1949. 

 26 T754 



Extent of infection and control policy adopted by 

 Grenada Government. 



856. FREEMAN, W. G. Witch broom in Trinidad. 

 Trop. Agr. [Trinidad] 5:287-288, illus. Nov. 1928. 

 26 T754 



857. GARCES OREJUELA, C. La escoba de bruja del 

 cacao. Colombia. U. Nac. Facul. Nac. de Agron. Rev. 

 6:329-369. Ref. Dec. 1946. 9.4 C717 



Reviews the literature on the subject. 



858. JACQUET, J. H. Les balais de sorcifere du 

 cacaoyer et les moyens de les 6viter. Agron. Colon. 18: 

 129-133. May 1929. 26 Ag812 



Causes and characteristics of the disease and reasons 

 for its severity in Dutch Guiana (attributed to poor 

 resistance of trees planted on low land). 



859. LINDEBERG, G., and MOLIN, K. Notes on the 

 physiology of the cacao parasite Marasmius perniciosus. 

 Physiol. Plant. 2:138-144. Ref. 1949. 450 P564 



Based on laboratory work at the University of Uppsala. 



860. LUDWIGS, K. Hexenbesen und kakaobaumen. 

 Tropenpflanzer 37:198-203, illus. Ref. May 1934. 

 26 T75 



861. MONTSERIN, B. G. Investigations on witchbroom 

 disease of cacao. Trinidad & Tobago Dept. Agr. Admin. 

 Rpt. 1932:49-51; 1933:45-46. 1933-34. 8 T732 



Investigations concerned chiefly with dormant bud 

 infection. 



862. MYERS, J. G. Observations on a journey from 

 the mouth of the Amazon to Mt. Roraima and down the 

 cattle-trail to Georgetown. Brit. Guiana Dept. Agr. Agr. 

 J. Brit Guiana 5(2):86- 100. June 1934. 9.6 B774 



Brief reference on p. 90 to occurrence of witches 

 broom disease on cacao near Pari and along the main 

 Amazon. Disease-free wild cacao was found in the 

 Kanuku Mountains, British Guiana (p. 99). 



26 



