562 EXPERIMENT STATION RECORD. 



Infectious diseases of cultivated plants according to strict bacteriological 

 methods, E. Hallier (Die Pestkrankheiten der Kulturgewachae. Stuttgart: E. Niigele, 

 1898, 2. ed.). 



The bacteria of sorghum blight, F. F. Bruyning (Arch. Neerland. Sci. Exact, et 

 Xat., 2. ser., 1 (1898), pp. 297-330, pis. 2; abs. in Jour. Roy. Micros. Soc, 1S98, No. 5, 

 p. 581). — Two new species of bacteria are described from blighted sorghum. They 

 are Bacillus ruber ovatus and Micrococcus aurantiacus sorghi. 



Notes of some plant diseases, G. Pollacci (Atti B. Univ. Pavia, 2. ser., 5 (1897), 

 pp. 8; abs. in Ztschr. Pflanzenkrank., S (1898), No. 3, p. 171). — The author notes the 

 occurrence in the botanical garden of Pavia of the following parasitic diseases: 

 Macrospori u m viola;, on the leaves of violets, Relminthosporium iberidis on the leaves 

 of Iberia sp., Leptothyrium paraaiticum on the stems of the Cereus atcllatua and C 

 triangularis, Cytosporella cerei on Cereus sp., Pir oatom a far net ianum on Pandanua utilia, 

 Phylloaticta dammara; on the leaves of the Dammara moori, and Helminthoaporium 

 lunariw on the leaves of Lunaria biennia. The last-named fungus causes the total 

 destruction of the fundamental parenchyma of the leaves, causing them to fall. 



The principal nematodes found on agricultural crops, E. Henning (E. Landt. 

 Akad. Ilandl. Tidakr., 37 (1898), No. 4, pp. 247-265, ill.). 



On the occurrence of Heterodera schachtii and H. radicicola in Russia, J. 

 Tarnani (Centbl. Bokt. u. Par., 2. AM., 4 (1898), No. 2, p. 87; abs. in Ztschr. Pflan- 

 zenkrank., S (1898), No. 3, p. 165). — The author reports the presence of Heterodera 

 achachtii upon beets and also Sinapis nigra, Poa annua, Trifolium repena, Medicago 

 lupulina, Stellaria media. Solatium nigrum, Chenopodium polyspermism, Triticum repena 

 and Sonchua oleraceua. Of the last three plants their use as catch crops for beet 

 nematodes can hardly be further recommended. 



Upon the sugar beet the author found also Heterodera radicicola, Dorylaimus sp., 

 and Enchytraus sp. 



Heterodera radicicola has been reported in a number of places in different govern- 

 ments of Russia as occurring on sugar beets and Oxalis atricta, Sonchua arvenaia, 

 Galinsogea parriflora, Papaver rhoeas, and Polygonum sp. 



Protection of fruit against parasitic fungi, A. Tschokke (Landw. Jahrb. Schweiz, 

 11, p. 153; aba. in Gard. Chron., 3. ser., 24 (1898), No. 621, p. 370).— -It is stated that 

 pomaceous fruits are protected against invasions of such fungi as Monilia fructigena, 

 Penicillium glaucum, P. olivaceum, Mucor pyriformis, and M. stolonifer by the trans- 

 formation of the stomata into lenticels and by the presence of tannic and malic 

 acids in the peripheral layers of cells. 



A remedy for Glcesporium laeticolor, W. Button (Gard. Chron., 3. ser., 24 (1898), 

 No. 603, p. 53). — The author states that sprayiug grapes with methyl alcohol has 

 proved successful iu the destruction of this fungus. Care must be taken that the 

 alcohol is not sprayed on the grapes so as to form drops on the berries, or it will 

 produce decay. It is advised that the application be made either during a dull 

 day, with little air stirring, or when the sun is not shining on the vines. 



Treatment of plant diseases in 1896, F.D.Chester (Delaware Sta. Rpt. 1897, 

 pp. 20-38, figa. 4, dgms. 5). — This is a reprint of Bulletin 34 of the station (E. S. R., 9, 

 p. 147). 



Instructions for spraying, J. H. Panton (Rept. Agr. New Brunswick, 1897, pp. 

 209-222, figs. 13). — Formulas for fungicides and insecticides are given and a number 

 of injurious insects and fungus diseases are described.. 



On the contamination -with copper through pressing of sprayed grapes, H. 

 Hoffmann (Centbl. Bakt. n. Par., 2. AM., 4 (1898), No. 9, pp. 369-376; 10, pp. 422-427). 



ENTOMOLOGY. 



Preliminary notes on the codling moth, T. D.A.Cockerell (Neiv 

 Mexico Sta. Bui. 25, pp. 47-6S). — The bulletin gives the results of one 

 year's observations on the codling moth in New Mexico. The life his- 

 tory of the insect at Mesilla is as follows : Moths appear toward the end 



