No. 1, July, 1920] PATHOLOGY 205 



disease (Synchytrium endobioticum) has become a serious menace to the poti 

 evident thai amongst the varieties immune to wart, of which Lochar, All- i cot 



Kerr's Pink, and Majestic were the besl yielding varieties in thi re potal 



that will yield very heavy crops, and some of them maj bi cla ed among I the h< 

 cropping varieties in cultivation a1 the present time." — M. />'. McKay. 



1359. SoMBRVILLB, W. Ear cockles In wheat. Jour. Bd. Agric. Greal Britain 26:907 

 909. 8 Jig. 1919.- A reporl is given of some brief tests made to determine whether the wheat 

 eelworm {TyUnchu* scandena) can be successfully controlled by seed treatment. Soaking 



infested seed in 1 per cent copper Sulphate, 0.5 per cent formalin, and 1 per cenl formalin for 

 24 hours in each case diil not giveperfecl control of the eelworm though the germination of the 



grain was in the ease of the formalin 1 realmont greal lv reduced. The use of 5 per cent copper 

 sulphate, 0.5 per cent sulphuric acid, and 1 per cent sulphuric acid each for 24 hours gave com- 

 plete control of the eelworm though, since germination of the grain was reduced 45 per cent 

 or more by the treatments, the use of these solutions is not practical. Wheal infested with 

 eelworms should, therefore, not be used for seed purposes. — M. B. McKay. 



13G0. Spafford, W. J. Trouble affecting cereals in the Penola district. Jour. Dept. 

 Agric. South Ausf ralia 22: 027-534. 1919. — A serious trouble causing enormous damage to the 

 cereal crops. The plants are affected after they have apparently made a healthy growth of 

 several inches. The trouble first appears in patches resembling water logged crops. The root 

 system is killed and lesions extend up the crown for about an inch. The leaves begin to dry 

 up, and finally many of the plants die. Investigations to establish the cause of this trouble 

 have been carried on for a period of years, but as yet, the causal organism has not been defi- 

 nitely determined. — Anthony Berg. 



1361. Speare, A. T. The fungus parasite of the periodical cicada. Science 50: 116-117. 

 Aug., 1919. — The fungus, Massospora cicadina Peck, has been extremely prevalent about 

 Washington, D. C, during the recent appearance of brood X of Cicada septendecim. It ap- 

 pears that conidia and resting spores of this fungus are not formed simultaneously in the same 

 insect, and infected individuals bearing only conidia present a different gross appearance 

 from those insects in which only resting spores are produced. The characteristics produced 

 by infection of both conidia and resting spores are described briefly. — A. H. Chivers. 



1362. Stahel, G. Uber die Inflorescenzen von Theobroma cacao Linn, und Theobroma 

 bicolor Humb. und ihre Umformung unter den Einfluss des Kriillotenschimmels (Marasmius 

 perniciosus Stakel). [Concerning the infloresence of Theobroma cacao Linn, and T. bicolor 

 Kumb. and their deformation by Marasmius perniciosus Stakel.] Ann. Jard. Bot. Buitenzorg 

 30:91-114. 8 pi. 1918. 



1363. Stevens, F. L. Three new fungi from Porto Rico. Mycologia 12 : 52-53. 1920. 



1364. Stevens, Neil E. Keeping quality of strawberries in relation to their temperature 

 when picked. Phytopath. 9: 171-177. 1919.— See Bot. Absts. 4, Entry 947. 



1365. Stone, R. E. A new stem-rot and wilt of tomatoes. Phytopath. 9: 296-29S. 1919. 

 — This is a greenhouse trouble ascribed to a species of Bolrytis. The fungus is a wound para- 

 site capable of attacking only under conditions of excessive humidity. — E. E. Clayton. 



1366. Stone, R. E. Meeting of the Canadian Branch of the American Phytopathological 

 Society. Mycologia 12:43-45. 1920. — Report of the first annual meeting of the Canadian 

 Branch of the American Phytopathological Society. Various papers presented at the meeting 

 are listed. — H. R. Rosen. 



1367. Swart, N. L. Jaarverslag 1918. [Report for 1918.] Mcdedeel. Rubberproefsta. 

 West-Java, Buitenzorg 12:1-47. 1919. — During the year much attention was given the 

 brown bast disease [cause unknown] of Para rubber. Approximately 20 per cent of the trees 



