THE MONTHLY BULLETIN. 



305 



it still occurs in small numbers, and where it is being kept under control. Tt is 

 generally present in Florida, but there are extensive citrus areas still free from it. 

 A serious pest, but controllable. 



Fig. 106. — The common whitefly (Dialeurodes ritri Ash.) on lemon 

 leal taken at Marysville, Cat. (Photo by Weldon.) 



FOOD PLANTS ON WHICH 



D. CITRI HAS MATURED, LISTED IN ORDER 

 PREFERRED. 1 



Severely Infested. 

 Chinaberry and umbrella trees 

 Citrus, all varieties and species 

 Cape jasmine 

 California privet 

 Prickly ash 

 Japanese and native persimmons 



Less Severely or but Little Infested. 



Cherry laurel 



Coffee 



Pomegranate 



Wild olive {Osinnnthus americanus) 



Green ash 



Button bush (Cephalanthns OCCidentalis) Portugal cherry (.Cerasus sp.) 



Smilax sp. Tree-of-heaven (Aihtnthus) 



Camt tlia la ponica 



Privets ( L. amurense and L. lucidum) 



Jasminum sp, 



Vihurnum nui 



English ivy 



Water oak 



Trumpet llower (Tecoma radicans) 



Ficus sp. 



Scrub palmetto 



Honeysuckle 



Blackberry 



Oleander 



Boston ivy 



Mexican orange 1 1 hoisya U rnata i 



Osage orange (Madura aurantiaca) 



=List, slightly modified, from Bui. 123, 1914, Fla. Exp. Station, by J. R. Watson. 



