Vlll PREFACE. 



ackno^Yleclge the source fully and clearly, and (here I nday 

 add) gratefully. Some of the infestations which have heen 

 little (or not at all) known of as injurious until the past few 

 years — as, for instance, the attacks of the Flat-celled Shot- 

 borer Beetles {Xylehorus saxeseni = xylociraphus) in Plum wood, 

 those of the "Ground Beetles " {Geode-phdga of various species) 

 to Strawberry fruit, or, again, of the Eelworm {Aphelenchus 

 fragaria) which causes distorted growth of the Strawberry 

 plant — I have entered on at length, so as to give as much 

 detail as was in my power. 



In addition to the accounts of damage by insect attacks, 

 observations are also given of a few other kinds of infestations, 

 such as injuries by Phytoptidse or Gall Mites, and Nematoid 

 Worms ; and also, and very especially, the infestation known 

 as Bust or Bed Spider, scientifically as Tetranychus telarius, 

 of which more information was much needed where it could 

 be attainable for general reference. 



WitJi regard to arrangement, I have placed our ordinary 

 fruit crops (to which the volume chiefly refers) alphahetically, 

 giving under the heading of each crop accounts of the insect 

 attacks to which it is especially subject ; but in the case of 

 insects which are common infestations of many kinds of trees 

 and their produce, the observations are placed under the 

 name of the orchard tree or fruit bush regarding which these 

 observations were chiefly sent to me. For example, with 

 regard to the very generally injurious pests the Winter Moths 

 {Cheimatohia hrumata) and some other allied kinds with wing- 

 less females, the observations are placed under the heading 

 of Plum, as it is not to be denied that operations giving 

 treatment of 80,000 or more trees afford a more "broadscale" 

 view of treatment and results than is commonly attainable. 

 For readers who desire information as to the different kinds 

 of fruit crops which are injured by any special insect, a glance 

 at the " Alphabetical List " will give all that is required. 



Amongst kind friends who have especially assisted me, by 

 help in researches which were beyond my own power to carry 

 out fully, I beg to express my grateful acknowledgments to 



