PREFACE. 



To the honorable the State Board 0/ Horticulture: 



Gentlemen: I herewith submit to your consideration this short treatise 

 on beneficial and injurious insects. 



This was prepared in accordance with a resohition adopted by you at 

 your November (1887) meeting. Some of the most destructive insects have 

 been treated at some length, notably the fluted or cottony scale. In the 

 preparation of this treatise, the works of Professor Riley, Professor Corn- 

 stock, and that of the late Matthew Cooke were freely made use of. 



I trust that this little publication will be judged charitably, as neither 

 time nor knowledge has been sufficient to do justice to the undertaking. 



Respectfully submitted. 



W. G. KLEE, 

 Inspector of Fruit Pests. 



San Francisco, California, October 12, 1888. 



