108 JOUKNAL OF THE EOYAL HOETICULTURAL SOCIETY. 



insisted on. Arsenate of lead is recommended as an insecticide for 

 caterpillars generally, in preference to Paris green, on account of its 

 great adhesive qualities and the fact that it can be used at any strength 

 without burning, and has some fungicidal value when added to lime- 

 sulphur solutions. 



An infusion of tobacco as a contact insecticide for plant lice, slugs, 

 and thrips is rapidly gaining favour, as it is effective and does not burn 

 the fohage.— y. G.' J. 



Apple Opchapd, Is it necessary to Fertilize an ? By W. P. 



Hedrick [U.S.A. Exj). Stn., New York, Bull. 339; July 1911; 

 4 plates, 7 figs.). — This is a report of a fifteen-year experiment to 

 determine whether apple orchards benefit by manuring. There were 

 twelve plots of standard trees, the variety in every case being the 

 ' Rome ' top-worked on ' Ben Davis. ' The ' Rome ' buds all came from 

 one tree, and the stocks were selected carefully so as to exclude indi- 

 vidual variations as far as possible. The fertilizers had no sensible 

 effects upon the yield of fruit, though the size of the apples may have 

 been slightly increased. — A. P. 



Apple * Yellow Bellefleur.' By A. Janson {Oestr. Gart. Zeit. 

 vol. vi. pt. xii. pp. 455-7; 1 plate). — This apple soon arrives at fertility 

 and bears large fruit on the end of the branches. The apples are ready 

 from November to March. The tree does best in good moist soil. It 

 blossoms late and bears large crops. On dry ground it is subject to 

 mildew. — S. E. W. 



Apples, New. By W. J. Allen (Agr. Gaz. N.S.W. vol. xxii. pt. v. 



pp. 418-9 ; 1 coloured plate, 2 figs.). — ' Worcester Pearmain ' and 

 ' Mcintosh Red ' do well in New South Wales.— ^S. E. W. 



AsparagfUS Beetles. By W. J. Goverts {Gartenflora, vol. Ix. pt. 

 XV. pp. 336-7; 1 fig.)- — Crioceris asparagi and C. duodecimpunctata can 

 be destroyed in the early morning by shaking the plants over a wide- 

 necked bottle into which a funnel is fitted. — aS'. E. W. 



Asparagrus Miner, The. By P. H. Chittenden, Sc.D. (U.S.A. 

 Dept. Agr., Bur. Entom., Giro. 135; March, 1911; 2 figs.). — In recent 

 years the stalks of asparagus have been reported considerably injured 

 by the larva of a small black fly, to which the name of Asparagus 

 miner [Agromyza simplex Loew) has been given. The larva mines 

 beneath the epidermis of the stalk, and when it has transformed to 

 the puparium stage the thin outer skin becomes more or less ruptured, 

 and the presence of the insect is discovered easily. Prior to 1896 

 nothing was known of its habits. It is an American species, and 

 evidently restricted to asparagus as a food plant. 



It does not appear to be a very serious pest. — P. G. J. 



Aspens : their Growth and Management. By W. G. Weigle 

 and E. IT. Frothingham {U.S.A. Dep. Agr., Forest Service 



