18 

 The Palms 



Some varieties of these trees, so universally hardy in California, 

 and which fill so large a place in our list of trees, are very free 

 from insect pests. Of this description are the large fan palm and 

 some kinds of the date palm. On those infested, the scale is easily 

 seen along the troughs of the leaves and on the Coccus plumosus 

 and a few similar sorts on the stalk at the base of the leaves. The 

 kinds of scale are the Oleander (Aspidiotus hederae), the Greedy 

 and the Red Scale. 



One tree classed with the palms, the Dracaena, often called the 

 Yucca Palm, is always likely to be infested with Long-tailed Mealy 

 Bugs, in fact it is one of the worst breeders of this insect and the 

 hardest to rid of it. The Sago Palm almost always harbors more 

 or less Black Scale. 



Umbrella Tree 



Easily grown, but quite subject to Greedy Scale, to an extent 

 which often injures it badly. 



Rice Paper or Rice Tree 



Easily grown, somewhat subject to Mealy Bug of both kinds. 



Magnolia 



A beautiful thrifty tree if watered, subject somewhat to Greedy 

 Scale and Mealy Bugs. Will grow anywhere south of the mountains. 



Cypress (all varieties) 



Subject to a Mealy Bug of a kind seldom found on other trees, 

 but nearly resembling the citrus variety. It is pretty well con- 

 trolled by a parasite. The tree is very thrifty and hardy. 



Norfolk Island Pine 



Araucaria excelsa 



Beautiful and thrifty if watered. Very subject to a pure white 

 oval scale peculiar to this tree, called Eriococcus araucariae; fairly 

 easy to kill with resin wash. 



Araucaria Bidwelli (Monkey Puzzle) 



Very thrifty with water, and subject to a comparatively rare 

 scale, similar to Greedy Scale in shape but darker, called Aspidiotus 

 rossi. Resin wash will kill it. 



