152 EXPERIMENT STATION RECORD. [Vol.43 



obtained thut the trasli used as inulc-h or rtoatiii^' l)aiianii (U'-bris may spread 

 the Pajiama disease (i»ananu wilt). 



Coeoinit l)ud rot killed many trees in the eastern parishes. The disease, whieli 

 appears tirst in the heartleaves, is said to be due to a fniifrus closely related 

 to I'lithium- p(il))iiroruni, the cause of bud rot of coconuls and of palmyras in 

 India. S<ime sprouts from nurseries were found infected by the funj^us. The 

 same fuiif^us caused a form of U-af-bitten disease in the san)e districts. This 

 disease has been reproduced by pouring cultures of the funfius into the hearts 

 of young trees. The most prevalent form of leaf-bitten disease continued to 

 be caused by the pineapple fungus {Thielaviopsis paradoxa), which showed a 

 considerable increase following the hurricane of 1917. INIentiou is made also 

 of corn smut {UatiJago maydis), coffee thread blight {PcJlicularia koJerogu), 

 sugar cane rind disease (Mchtnconivin mcclinri), potato eai'ly blight {Macro- 

 sporiiini aolani), potato late blight {FhijIopJithora i»/c.s-f«».s), sweet potato white 

 rust {AlhiKjo ipoiiicd: pdnduntna) , and sweet potato soft gall (Albugo sp.). 



Vegetable pathology [Algeria] (Expose tiit nation (Jen. A10rie, 1918, pp. 

 51/f, 515). — During January, 1917, the pathoh»gical station took up the study of 

 a pod disease of bean due to TJromyccs appendiculatus, which ordinarily attacks 

 the stem and leaves. A bacterial disease of crucifers, particularly in cauli- 

 flower, was caused by Bacterium maculicolum. In November, a leaf disease 

 was developed by Zizi/phiin vulgaris, due to a fungus, PluikopHora ziziiphl vul- 

 garis, up to the pi-esent time sijpposedly confined to Japan, China, and neigh- 

 boring regit)ns. 



During July and August, study was made by the station staff at various 

 points of a disease causing death of grai)evines. The trouble appeared to be 

 physiological. Rhus oxi/acantha suffered from attack by a parasitic fungus, 

 Exobasidiuni hesperidum, which is treated as a new species. 



Phytopathological review (Agr. Colon. [Italy], 13 (1919), No. 9, pp. .356- 

 362). — This review notes a disease of walnut in South Africa which is ascribed 

 to Bacterium juglandis; rose diseases in Trinidad due to Diplocarpon rosa\ 

 Ccrcospora rosicola, and SpJicerothcca pannosa; and a variety of sugar cane 

 innnune to mosaic disease. Accounts are also included of animals injurious 

 to economic plants. 



Diseases of plants new to Victoria, C. C. Bkittlebank (Jour. Dcpt. Agr. 

 Victoria, 17 (1919), No. 10, pp. 626-629, figs. 2).— Anthracnose of lettuce, Didg- 

 mana (Marssonia) perforans, has been recognized as causing anthracuose on 

 garden lettuce in a suburb of Melbourne, which was grown from imported 

 seed. The disease was checked with a 6 : 4 : 80 Bordeaux spray. 



In the spring of 1916, passion-fruit vines Avere attacked by a fungus, which 

 proved to be Botrytis cinerea, at points where the vines had been fastened 

 to the trellis and thus slightly injured. A somewhat similar injury was 

 caused by Sclerotinia sp. Both fungi have been largely held in check by 

 removal of diseased portions and several applications of Burgundy mixture at 

 a 6 : 4 : 40 strength. 



Notes on the genus Balansia, A. M. King (So. African Jour. ScL, 15 (1919), 

 No. 8, pp. 670-673, pi. 1, figs. ^). — ^An account- is given of what is supposed to 

 be a causal fungus associated with rapid, erect, and otherwise abnormal 

 growth in Cynodon dactglon, which grass abounds in Pretoria. The fungus is 

 assigned to the genus Balansia. 



Green nianurial croi>s and " take-all," C. C. Bkittlebank (Jour. Dcpt. 

 Agr. Victoria, 17 (1919), No. 3, pp. 171-171,).— It is stated that during the past 

 season take-all or white-heads (Ophiobolus graminis) has developed to a more 

 or less serious extent in all the green manurial plats at the State Research 



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