No. 1, July, 1920] PATHOLOGY 



leuis confronting Connecticut farmers. The evenh levoted to brief papen and 



discussions and the mornings and afternoon tovisil lb farms. Among the sub jc 



discussed was "Peach Yellows," presented by Q. P. Clinton, who be belief that 



it is probably an enzymotio di blob can be transmitted by grafting. — //. u. So , n . 



1320. Mi Kiui.i., W. A. A meeting of pathologists on Long Island. Myoologia 11: 320 321. 

 1910. — A brief note telling of a meeting <>f plant pathologists to study t. — 



//. R. Ro8( 



1327. Nowell, \Y. Red ring disease of coconuts. Agrio. News [Barbados] 18:396. 1910. 



— This is a report read in Trinidad giving further notes on the nature of tin- disease. The 

 author brings out the additional fact that the existence of the di a the rot 



ondary, and the center of infestation is the red sons in the stem which is the feeding ground 

 of the nematodes. While much detail work remains to be done, i1 Beems probable that the 

 worms arc introduced .with the seed nuts. Infestation may also take place among the leaves 

 without previous injury, quite possibly from dry infected material blowing about or from 

 worms gaining access to the leaf bases of young trees from the soil. — ./. S. Dash. 



1328. Nowell, W. The cacao canker fungus as a cause of coconut bud rot. Agric. Xews 

 [Barbados] 18: 414. 1010. — Coconut bud rot in British Guiana and Trinidad may be induced 

 by mechanical, chemical, or parasitic interferences with life processes of the palm. In this 

 connection Reinkinq's work in assigning to Phytophthora faberi causal relation to the bud rot 

 of coconuts found in the Philippine Islands is compared with Johnston's observations with 

 Bacillus coli and Ashby's observations on the relation of Phytophthora palmivora to bud rot. 

 — J. aS. Dash. 



1320. O'Byrne, F. M. Spraying in a nursery. Florida Grower 29: S. Nov. 8, 1919. — 

 Discussion of the equipment and spray materials useful in citrus nurseries is presented. The 

 insecticidal and fungicidal efficiency of spraying is demonstrated by experimental data. — 

 H. R. Fulton. 



1330. Oskamp, Joseph. Some newer phases of disease and insect control. Trans. Indiana 

 Hortic. Soc. 1918:33-12. 1910. — The spray gun saves time, but it is questionable if its effi- 

 ciency is equal to that of the spray rod. Dry lime-sulphur is easier to handle than the liquid 

 and appears to give as good control of apple scab (Venturia inac.qualis) . Calcium arsenate is 

 equal to lead arsenate as an insecticide and if combined with an equal amount of freshly 

 slaked lime will not burn apple foliage. Dusting with sulphur necessitates a higher cost of 

 materials and a lower cost of labor than spraying but does not control scab and blotch (Phyllo- 

 sticta solitaria) so successfully. A dormant spray of concentrated lime-sulphur has been used 

 for blotch control but the results are negative. — Max W. Gard.ru 



1331. Palm, Bj. Eenige ziekten waargenomen aan de tarv/e op Java. [Some diseases ob- 

 served on wheat in Java.] Dept. Landbouw, Nijverheid en Handel, Meded. Lab. Planten- 

 ziekten Buitenzorg 34: 1-20. PL I (colored), fig. 1-12. 1018. — Observations and a popular 

 description are given for the following diseases which were found in experimental plots from 

 seed imported from India, Europe, and other countries: Loose smut (Ustilago tritici, Scurf 

 (Gibberella saubinetii = Fusarium rostratum) , Hclminthosporium diseases (H. gran . 

 and //. geniculatum, and the Nigrospora disease (N. panici). The smut and scurf were not 

 previously reported in Java and are believed to have been recently introduced on imported 

 seed. The A T igrospora which has apparently not been observed outside of Java causes but 

 slight damage and is also found on rice and maize. — R. D. Rands. 



1332. Parker, John H. A preliminary study of the inheritance of rust resistance In oats. 

 Jour. Amer. Soc. Agron. 12 : 23-3S. 1020.— See Bot. Absts. 4, Entry 602. 



