NOTES AND ABSTRACTS. 



129 



FritillaFia flavida. By A. B. Rendle (Jour. Bot. 518, p. 45 ; 

 2 1906). — Description of a new species from Tibet, near to the Himalayan 

 F. Stracheyi, from which it differs in its yellow flowers with rather 

 narrower petals. — G. S. B. 



Fruit Diseases, Investigations on. By H. J. Eustace (U.S.A. 

 Exp. Stn. Geneva, N.Y., Bull. 297, Feb. 1908; 7 plates).— Apples 

 artificially inoculated with decay-producing fungi were placed in 

 commercial cold storage, temperature 32° F., and held there for two 

 months or more. Of the several species used Penicillium glaucum (blue 

 mould) was the only one that developed and caused decay. Upon 

 removal to a warmer temperature all the species of fungi developed and 

 caused decay. 



Decay was not entirely prevented in inoculated apples held at a 

 temperature of 35° — 56°, and developed vigorously at a temperature of 

 48°-69°. 



Peaches inoculated with Sclerotinia fructigena (brown rot), the most 

 common and destructive decay of peaches, developed a small amount of 

 decay in two weeks at a temperature of 30° F. 



Spores of Penicillium glaucum (blue mould) can be destroyed by 

 fumigation with sulphur, but when these fumes come in contact with ripe 

 apples the commercial value of the fruit is lessened. 



Spraying immature apples with Bordeaux mixture did not check the 

 development of spots of Venturia inaequalis (scab) that had started 

 previous to the application of the Bordeaux mixture. — M. C. C. 



Fungicide, Self-boiled Lime-sulphur Mixture as a. By W. M. 



Scott (U.S.A. Dep. Agr., Circ. 1; April 1908; 2 figs.).— The toxic 

 action of Bordeaux mixture on peach foliage, rendering it practically 

 useless for the control of peach diseases in the growing season, led the 

 writer to investigate other possible fungicides that might prove less 

 caustic. 



During 1907 self-boiled lime-sulphur mixtures in various proportions 

 and strengths were tested on both the apple and the peach. 



The mixture which gave the most promising results was composed 

 of ten pounds of sulphur (flowers or flour) and fifteen pounds of fresh 

 stone lime to fifty gallons of water, and may be prepared as follows : 



Place the lime in a fifty-gallon barrel and pour two or three gallons 

 of boiling water over it. Immediately add the sulphur and another three 

 gallons of hot water. The heat from the slaking lime will boil the mixture 

 violently for several minutes. Some stirring is necessary, to prevent burn- 

 ing, and more water should be added if the mass gets too thick to stir, but 

 the ccoking is more effectual when the minimum quantity of water is used, 

 usually from six to eight gallons being required. A piece of old carpet or 

 gunny sack thrown over the top of the barrel helps to keep in the heat. 

 The boiling will continue from twenty to thirty minutes, depending upon 

 the quality of the lime. When the boiling ceases dilute with cold water 

 to make fifty gallons, stir thoroughly, and strain through a sieve of about 

 twenty meshes to the inch, in order to take out coarse particles of lime, 

 but all the sulphur should be carefully worked through. 



VOL. XXXIV. K 



