JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Summer spraying of .Japan Plum trees with the wash, made in the pro- 

 portion oi one pound of sulphur to ten pounds of lime, resulted in killing 

 the Male* without injuring the foliage. 



Experiments in making I lime-sulphur wash by using caustic soda or 

 potash, to avoid the necessity of boiling, gave promising results. The 

 lime was slaked with warm water, and the sulphur, which had been made 

 into a thin paste, was added, and thoroughly mixed with the slaked lime ; 

 thfiB bom j to | as much caustic soda as lime in the compound is added 

 and tli necessary quantity of water poured in as chemical action goes 

 on. Further experiments are required before the formula can be fixed. 

 The lime sulphur-salt wash kills the scale-insects by its soluble com- 

 pounds acting as a contact poison, and by its compounds forming a crust 

 preventing the development of the young scales. — F. J. C. 



San Jose Scale, Plants infested by. By AY. E. Britton {U.S.A. 



Exp. Stn. Conn., Rep. of Entomologist, part ii. 1902). -A list of plants 

 (1) commonly or badly infested, (2) occasionally or rarely infested, (3) not 

 infested, has been compiled by means of a circular letter to the entomo- 

 logist* of the various States. Seventy-two are placed in the first group. 

 The Apple, Pear, Teach, Japan Plum, Currant, Sweet Cherry, European 

 Hum, Quince, and Gooseberry among fruits, and the Purple-leaved Plum, 

 Ci\it<c<jus, Japanese Quince, Mountain Ash, Red-twigged Dogwood, Bosa 

 i .,/, Poplar, Persian Lilac, Cotoneaster, Kim, and Osage Orangt 

 among ornamental trees, are mostly frequently infested in Connecticut : 

 ()G are placed in the second group and 76 in the last. — F. J. C. 



San Jose Scale: Spraying- Experiments. By \\ . K. Britton 



(U.S.A. Exp. Stn. Conn., Hep, of Entomologist, part ii. 1902). — 

 Both kerosene and the lime-sulphur-salt wash mentioned in previous 

 abstracts (Joimi. H.H.S. xxvii. 787) were found to be effectual remedies 

 when applied before the buds burst. In spraying with kerosene a bright 

 da] m early spring is the best. Bearing trees in a large orchard were 

 sprayed effectively with the lime wash at a cost not exceeding 11 cents 

 per tree.— F. J. C. 



Sanseviei a grandis. By Sir J. 1). Hooker (Bot. Mag. tab. 7877).— 



Nat. ( rd. llu)nml(>racc<,\ tribe ( )ph io/iogonctr. Native of tropical Africa? 

 Tins nol.lt species of 4 Bowstring Hemp' was cultivated for fibre in Cuba, 

 the fibre being fine, white and silky, of extraordinary strength. The 

 leaves are tew, very large, 8-4 ft. long and 6 ins. broad, spreading and 

 fOiulate. The scape is '2 ft. high, with a panicle 2-8 ft. long.— G. II. 



Sassafras, Notes on. By K. \Y. Berry (Bot. Gaz. xxxiv. No. 6, 

 I' MK>) '''be author shows the variability in the lobing of the leaf of the 

 plant, and discusses the fossil types referred to Sassafras, pointing 

 out the imp ssibility of trusting to them in all cases. Thus, of 28 Ameri- 

 '•;in form, ivfrned to S„ss,ifras, only six can be retained.— G. H. 



Sawfly, The Radish. Bj Dr. V. tfaiuha] (Lc /oftf/March 20, 1908, 

 p. 85). A life history of this pest, Athalia spi varum, is given, with 

 '"''<•" '-. "e! recipe, for the best remedies.— C. W. D. 



