31 



quite apt to crowd very closely together, often over-lapping, while 

 the hederae are almost always separate. The latter is the one 

 which usually infests English Ivy and the climbing vines and soft 

 juicy plants, and also the Palms, which often have them very badly. 

 The Greedy attacks perhaps the greatest variety of plants and trees 

 of any scale, hence its name, and to many it is very destructive. 



Among trees, we find it on all the deciduous fruit trees more or 

 less, the umbrella often very bad, sterculia, acacias, pepper, camphor, 

 citrus, loquats and some kinds of grapes. In fact you are likely 

 to find it on almost any plant that grows if it is bred freely by 

 some plant or tree in the neighborhood. 



These scales are not very difficult to kill, and a good kerosene 

 or distillate emulsion will get them if well applied and often enough, 

 at any time of the year. 



The Purple Scale 



(Lepidosaphes beckii) 



The Glover's Scale 



(Lepidosaphes gloverii) 



We have now come to the scale generally considered the most 

 difficult to kill and the most destructive to the citrus of all, but it 

 infests no other tree or plant of importance. It is found on the 

 branches, leaves and fruit indiscriminately, and if unchecked, be- 

 comes so numerous as to form a complete crust of scale, particu- 

 larly on the fruit, so as to hide the skin entirely, rendering the fruit 

 absolutely unfit for market, and bringing sure death to the tree 

 eventually. 



This scale was introduced on nursery stock into Southern Cali- 

 fornia 28 years ago by the Walker Bros, of Orlando, Fla. It was 

 said by horticultural men, who ought to have known better, that 

 this scale could not live in our climate. Fifty thousand of these 

 trees were allowed to be distributed and planted in Los Angeles, 

 Riverside and Orange counties. The greater part of them were 

 planted in Riverside after being thoroughly dipped in resin wash. 

 If any Purple Scale survived this treatment the writer has never 

 heard of it. The greater part of these trees that were planted about 

 Downey, Rivera and Whittier were not treated, consequently in 

 two years the trees had become badly infested and the scale had 

 spread to the older orchards. This was before the sheet tents came 

 into use, and the method of fumigating large trees at that time was 



