CHAPTER X. 



Macbeth. "What ! will the line stretch out to the crack of doom!" 



Macbeth, Act iv., Scene i. 



The writer regrets the necessity of introducing any new pests to 

 his readers, but if we are still spared the visitation of some, time in 

 his course may bring them to us. 



The olive is subject to a diversity of maladies, of which some are 

 derived from the action of insects and parasitic plants, others, from 

 meteorological influences, and still others, from improper methods 

 of cultivation, such as excessive or defective nutrition. 



The insects which are most harmful to the olive are the following: 



COLEOPTERA— Beetles. 



Apion Vorax 

 Mecinus circulatus 

 Phloetribus oleae 

 Hylesinus oleiperda 



Polycaon confertus Tivig borer 



HEMIPTERA— Bugs, Lice. 



Psylla olivina 



Coccus oleae Black scale 



Lecanium oleae Black scale 



Cisticoccus pollinii 



Trips oleae Olive louse 



Aspidiotus Conchiformis Apple scale 



Asjndiotus Raj:>ax Greedy scale 



Aspidiotus Perseae. Red Bay scale 



