clxiv PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



The leaves on one half of the tree were killed by salt spray. In the next 

 year that half flowered, and from the fruits abundance of seed was 

 obtained. The Rev. W. Wilks cited an instance which occurred in his 

 own garden at Shirley near Croydon, fully forty miles from the sea, 

 when a particularly violent gale in early spring from the south-west 

 incrusted the young leaves of the trees with sea salt and actually killed 

 one plum tree recently planted and with only a few young leaves expanded. 

 The incrustation of salt could not only be distinctly tasted, but it could be 

 plainly seen in white crystals on the surface of the leaves. 



Plants attacked by Millipedes. — Mrs. Baxter, of Doncaster, sent 

 plants of German Asters, Stocks, &c, attacked by millipedes, upon which 

 Mr. Saunders reported : " They are the Spotted Snake millipede Julus 

 guttulatus. It is a most destructive pest in gardens, and one that is very 

 difficult to get rid of, partly on account of the hardness of their skins, 

 w T hich prevents most insecticides from having any effect on them, and 

 partly, that as they live generally below the surface of the ground, their 

 whereabouts are not known until some plant is found injured by them. 

 A strong solution of nitrate of soda, or common salt, is said to kill them 

 if it can be made to reach them of a proper strength. This is not easy 

 however, to effect, as the insecticide becomes weakened by passing through 

 the soil. They may be trapped by burying small slices of Turnips, 

 Mangolds, Carrots, or Potatos, or pieces of oil cake, just below the surface. 

 It is useful to stick a small wooden skewer into each slice, so that it may 

 be known where they are buried ; it also renders them more easy to 

 handle. These pests attack a large number of different kinds of plants, 

 and are exceedingly fond of ripe Strawberries." 



Box edging with Insects. — Mr. Saunders reported on specimens 

 received from the Rev. H. C. Brewster, South Kelsey, Lincoln : " The 

 insect on the Box edging is Psylla buxi, nearly allied to the Aphida, but 

 is one of the Psyllidce. Spraying the edging and the large bush with 

 paraffin emulsion or some similar insecticide would be the best plan of 

 destroying it." 



Scientific Committee, July 7, 1903. 

 Dr. M. C. Cooke, V.M.H., in the Chair, and seven members present. 



Apple-trees and Insects. — Mr. Saunders reported upon specimens re- 

 ceived from Mr. Campbell, of Ardross, Leeds : " The Apple-trees are 

 attacked by the caterpillars of two different moths, but the habits of both 

 are very similar. The green caterpillars are those of the Winter Moth 

 Cheimatobia brumata, the brown and yellow ones of the Great Winter 

 Moth Hybenvia defoliaria ; both belong to the family Geometridce, 

 and are two of the most destructive pests to Apple-trees. The 

 females of both are either wingless or have only the rudiments of 

 wings, so that they are incapable of flight. The chrysalides are formed 

 in the ground, so that when the moths emerge, it is evident that they 

 must climb up the trees if they wish to lay their eggs, as is their custom, 

 near the buds. To prevent this ascent is one of the most important 

 things to be done, if it is desired to protect the trees from attacks by the 



