DISEASES OF PLANTS. 61 



cliloride, coinniou salt, no fertilizer, kainit, and cariiallit. The most 

 sugar was produced wliere potassium cLloride was used, and the least 

 with caruallit. The kainit had less eifect on nematodes than was 

 expected, and in several cases the results were contradictory to those of 

 previous experiments. 



In experiments on the effect of applying kainit at different seasons 

 to nematode-infested land^ various amounts were applied in the fall, in 

 the fall and spring, in the spring, and as top-dressing, to different 

 l)hits, from 1891 to 1893, but the results were conflicting and inconclu- 

 sive. 



Researches as to the effect produced by other salts associated with 

 jjotash fertilizers showed that hydroscopic salts were advantageous in 

 dry weather by loosening the soil and preventing it from caking. 



A wheeled api)aratus for spraying with Bordeaux mixture was satis- 

 factorily employed among potatoes and beets and is figured. 



There are notes on 20 species of insects injurious during the year 

 and on 9 plant diseases, especially PhomaheUe, which was quite preva- 

 lent, owing to the dry weather, and in some cases to the application of 

 lime as a fertilizer. 



Fungicides and insecticides, S. T. Maynard [Massachusetts Hatch 

 Sta. Bui. 25, pp. 1-15, pis. 2). — The bulletin gives formulas for Bordeaux 

 mixture, ammoniacal carbonate of copper, coj)per sulphate solution, 

 arsenites, and kerosene emulsion, Avith directions for their use. A 

 spraying calendar is given in which preventive methods are suggested 

 for the more common diseases affecting fruits, etc. 



A brief report is inade on the rust of poplars {Melampsora popnlina) 

 giving the results of 4 applications of Bordeaux mixture. The sprayed 

 trees Avere healthy, while the check ones were badly diseased. 



Brief suggestions are given to those contemplating the jjurchase of 

 spraying apparatus. 



Reports are given on the use of fungicides and insecticides upon the 

 fruit trees of the station. Applications were made to apple, pear, 

 peach, cherry, and plum trees, all of which were attended with benefi- 

 cial results. Quinces, raspberries, blackberries, currants, gooseberries, 

 and strawberries were sprayed with success, but no records are given. 



The Uredineae and their host plants, G. Poirault (Jour. Bot. France, 8 {1S94), 

 No. 9, x>p. 173-177). 



Notes preliminary to a revision of the linosporous species of North Ameri- 

 can gramiuicolous Hypocreaceae, G. F. Atkinson (Torreij Bui. 19, i)p. 222-225). 



Blighting of blossoms, B. D. Halstkd {American Florist, 19, p. 1093). 



Concerning insects and fungus injuries (Centhl. Forstw., 20 {1S94), No. 5, pp. 

 214-221). 



Concerning the reason -why some parasites are harmless, Bouciiakd aud 

 Charrin (Als. in Centhl. Bald. u. Par., 15 {1894), No. 17, pp. 652, 653). 



Rots of stone fruits, L. R. Taft {American Agriculturist, 1894, June). 



Basal rot of daffodils, W. Ckawfobd {Gard. Chron., ser. S, 15 {1894), pp. 6^5. 

 626). 



