482 



Mildew oj Lima heans (pp. 167-171). — A description of tlie fungus caus- 

 ing; a disease of the Lima bean at New Haven, Connecticut, and vicin- 

 ity, ii'om observations by the author. This disease is denonunated 

 mildew of Lima beans {PhytophtJiora pliaseoli^ Thaxter). Tlie potato 

 h\\^\\t {Fhytophtlwrainfestanfi)^ Vi\n\ a disease prevalent in Enro[)e on 

 many coniCera', several varieties of cacti, andother Y>h\uts {PJi ytophthora 

 cactorum) are the only other known species of this genus. 



Miscellaneous notes [yt]). 171-174). — Brief notes on the following dis- 

 eases: white blast of Indian corn {Helminthosporliim tncnnsplcuum, 0. 

 & Ell.), smut of Indian corn [Usfilago maydis, D. C, Monilia fructi' 

 (jena, Pers.), anthracnose of raspberry [Glwosporium necator, E. & E.), 

 blackberry rust {Gemma nitens, Schw.}, Cladosporiiim fulvum, Cke., 

 Phytophthora infestans, Mont., Gercosporella persica, Sacc, pear scab 

 {Fusicladium pyriimm, Lib.), "spot" of qmn^QS [Entomosporinm macu- 

 latum, Lev.), strawberry blight {Sphoirella fragaria\ Tul.), antlirac- 

 nose of grapes {Spliaceloma ampelinum, De B.), Puccinia coronata and P. 

 (jraminis, and Uromyces striatus, Schrot. 



Experiments with Bordeaux mixture (pp. 174-177). — The Bordeaux 

 mixture was successfully applied for black rot in a vineyard of Concord 

 grapes at Meriden, Connecticut. The untreated rows failed to jiroduce 

 any grapes, while the treated rows yielded a crop of from GO to 75 per 

 cent in good condition. The mixture was also applied to two large 

 trees of Lombard plums for the fruit monilia {Monilia fructigena), black 

 knot {Ploicriglttia morbosa), and plum-leaf fungus {Septoria ccrasina). 

 "The two treated trees held their foliage intact up to severe frost in Octo- 

 ber, showed hardly any black knot, and matured a fair amount of fruit ; 

 while an untreated tree nearby was defoliated in August, matured no 

 fruit, and was badly infested by the black knot," An application of 

 the Bordeaux mixture at Hamdeu, Connecticut, to potato vines attacked 

 by the blight resulted in tbe partial preservation of tlie foliage, but for 

 some unexplained reason the crop of potatoes from the treated rows did 

 not weigh as much proportionally as that from the untreated rows. 



Notes in answer to inc^uiries concerning injurious insects 

 (pp. 178-180). — Brief notes on Mamestra jJicta, Telea polypJiemiis, Githe- 

 ronia regalis, Pldegethontiiis Carolina, Geclodasys unicornis, Erpantheria 

 scribonia, Grioceris asparagi, Goleothrips S-fasciata, and Tltrips n. s. 

 (causing " white blast" of onions). 



Laboratory apparatus (pp. 181-202).— This includes illustrated 

 descriptions of the following pieces of apparatus "devised at this sta- 

 tion and proved by lengthened service to be satisfactory : " hydrogen 

 generator made by S. W. Johnson and T. B. Osborne, supplying a larger 

 quantity of gas and under a greater pressure than the ordinary Kipp 

 generator; a gas desiccator designed by S. W. Johnson, primarily for 

 drying the hydrogen used in moisture determinations of certain vege- 

 table i)ro(lucts; an apparatus for drying in hydrogen, and an aliquoti- 

 meter, devised by A. L. Winton, tlie latter to assist in the routine work 



