List of Illustrations. 



FIG. 



116. A bad and old-standing attack of AYoolly Aphis . . . 



117. Woolly Aphis on the suckers and shoots of an old apple tree . 



118. Woolly Aphis and galled area produced by it . . . 



119. Early stage of attack of Woolly Aphis on young wood . 



120. Young wood attacked by W00II3" Aphis .... 



121. Piece of wild crab apple attacked by Woolly x\phis 



122. Eoot form of Woolly Aphis 



123. Ovum of Woolly Aphis and shrivelled skin of $ . 



124. Young Woolly Aphis hatched from egg .... 



125. Galls caused on roots hj Woolly Aphis .... 



126. Injecting bisulphide of carbon by means of the Vermorel injector 



127. Damage to foliage by Apple Sucker and normal leaves . 



128. Adult Apple Sucker ( x 14) 



129. Larva and nymph of Apple Sucker ..... 



130. Nymph skins of Apple Sucker ( x 2) . 



131. Old egg of Apple Sucker, showing rupture and process . 



132. Ova of Apple Sucker, showing where deposited (slightly magnified) 



133. Young larvae of Apple Sucker waiting to enter buds 



134. Orchard sprayed with lime and salt wash .... 



135. Seneca nozzles used for lime and salt wasli .... 



136. Apple tree coated with lime and salt to prevent Apple Sucker 



137. Ova of a Psocid sj). ■ . 



138. The Mussel Scale on apple twig {Lepidosaj)lics uhni) 



139. The Mussel Scale {Lejjidosajyhes uhni). 1, female scale (dorsal 



view) ; 2, ventral view with ova; 3, mature female beneath scale ; 

 4, larva ; 5, male ; 6, male scale. (After Newstead) . 



140. Propupal stage of a ijiale Scale Insect ..... 



141. Mussel Scale ; normal bark glands ; cankered scars 



142. Spraying machine (Four Oaks Patent) ..... 



143. Brown Soft Scale (Lecaniicm ca^n-ecf) ..... 



144. The Large Tortoiseshell Butterily (Vanessa ix)Jycldoros) 



chrysalis. ......... 



145. Caterpillar of Large Tortoiseshell Butterfly .... 



146. Plum and Cherry Tree Stem Borer {Semasia ivoebcriana) 



147. Piece of cherry bark (inner side) showmg workings of the Semasia 



larvaj .......... 



148. Snnasia u^orhcriana ........ 



149. Pupa of Plum and Cherry Tree Borer [Semasia ieoeheria)ia) pre 



jecting from bark ........ 



150. The Cherry Fruit Moth {Argyresthia nitidella. Fabr.) . 



151. Larval case on leaf and detached, also Moth of the Pistol Case- 



Bearer .......... 



152. An Apple Case-Bearer (Colcojihora sj).) and Moth. 



153. Cherry Black Aphis [Myzus cerasi) on cherry shoot 



154. Nymph of the Cherry Aphis (Myzus cerasi) (greatly enlarged) 



155. Adult Frog-hoppers {Pliila'nus sjnivmritis) .... 



156. Currant Clearwing Moth ....... 



157. Larva of the Current Clearwing in sitii' .... 



158. Larvae (just ready to pupate) and pupa of Magpie Moth 

 158a. Immature caterpillars of the Magpie Moth. 



