insects, mites, and worms which attack and cause disease among 

 fruit trees, bushes, etc., both in the open and under glass. The 

 author considers in consecutive order the insects injurious to the 

 apple, apricot, cherry, currants, damson, fig. goosberry, loganberry (i), 

 nuts, peach, pear, plum, pineapple, quince, raspberry, strawberry, 

 and grape. Accounts of some insects which might become pests 

 in the country owing to importation, beneficial insects, and washes 

 and fumigants used as insecticides and acaricides, together with 

 other data, are appended. 



Dr. R. STEWART MACDOUGALL. The Yellow horned or Plum 

 Fruit Sawfly, Hoplocampa fulvicornis - Klug. The Jour- 

 nal Board of Agric., August 1909, n. 5, p. 385. 



There is no doubt that the Plum Sawfly, which has been re- 

 corded from different parts of the country, is a very dangerous 

 enemy of the different varieties of plum, and efforts should be made 

 to restrict the damage and to prevent the spread of the insect. 

 As regards destructive measures, the Plum Sawfly is most vulne- 

 rable in its larval stage before it has left the plum and in the 

 cocoon stage in the soil. 



Hoplocampa fulvicornis is an insect well known in Continental 

 literature along with its close ally the Apple Sawfly (Hoplocampa 

 testudinea) (see Leaflet n. 205). 



Remedial measures: 



1) In the Continental literature it is suggested that the trees 

 should be sprayed just before the opening of the flower-buds with 

 a liquid which will be distasteful to the sawfly and will prevent 

 egg-laying. Some such sprays are named, but no record is given 

 as to the value of this mode of treatment. 



2) Collect and burn the infested fruits before they fall, so 

 as to prevent a new brood of Sawflies. Infested fruit can be re- 

 cognised by the hole, blocked, it may be, with adhering excrement 

 or a drop of gum. 



(i) The Loganbei-ry is a valuable hybrid produced at Santa Cruz, Cali- 

 fornia, in 1 88 r, by Judge I. H. Logan, from a seed of the Aughinbaugh 

 blackberry, accidentally fertilized from an adjacent raspberry, supposed to be the 

 old Red Antwerp. The Aughinbaugh is a pistillate variety of Rubus vitifolius^ 

 the extremely variable wild blackberry of California (BAILEY'S, Cyclop. Hart.'],. 



