INDEX. 109 
Page. 
Paraleyrodes persese, host of Encarsia variegata 10 
not likely to be injurious to orange 10 
occurrence, food plant 10 
Parasite, fungus, enemy of Aleyrodes citri. (See Aschersonia, red.) 
Parthenogenesis as affecting proportion of sexes in Aleyrodes citri 77-78 
in Aleyrodes citri 57 
Pear, alligator. (See Per sea gratissima.) 
cultivated, food plants of Aleyrodes citri 29, 43 
Persea gratissima, food plant of Aleyrodes Jloridensis 10 
spp 31 
Persimmon, Japanese, food plant of Aleyrodes citri 29, 41-42 
not food plant of Aleyrodes nubifera 90 
wild, food plant of Aleyrodes citri 29, 41-42 
not food plant of Aleyrodes nubifera 90 
Pomegranate, food plant of Aleyrodes citri 29, 43 
Prickly ash. (See Ash, prickly.) 
Privets, food plants of Aleyrodes citri 26, 29, 40-41 
not food plants of Aleyrodes nubifera 90 
Prunus caroliniana, cage test with Aleyrodes citri 30-31 
laurocerasus. (See Cherry laurel.) 
Psidium gua.java. (See Guava.) 
spp. (See Guavas.) 
Punica granatum. (See Pomegranate.) 
Pyrus spp. (See Pear, cultivated.) 
Quercus (see also Oak). 
brevifolia, cage test with Aleyrodes citri 30-31 
Railroad trains as means of spread of Aleyrodes citri 48-49 
Rearing cages for Aleyrodes citri 52-53 
Rosa spp., food plants of Aleyrodes spinifera 10 
Rubber tree. (See Ficus nitida.) 
Rubus spp., cage tests with Aleyrodes citri 30-31 
Satsuma. (See Citrus.) 
Smilax, food plant of Aleyrodes citri 29, 43 
Sooty mold resulting from work of Aleyrodes citri 17-19 
Sweet gum. (See Gum, sweet.) 
Syringa sp. (See Lilac.) 
Tangerine. (See Citrus.) 
Temperature as affecting emergence of Aleyrodes citri 68-70 
Tree of Heaven. (See Ailanthus glandulosa.) 
Umbrella China tree. (See China tree, umbrella.) 
Vehicles as means of spread of Aleyrodes citri 48-49 
Viburnum. (See Viburnum nudum.) 
nudum, food plant of Aleyrodes citri 29 43 
Weather as affecting activity of adults of Aleyrodes citri 78 
White fly, citrus. (See Aleyrodes citri.) 
cloudy- winged. (See Aleyrodes nubifera.) 
investigations in Florida, commencement 9 
woolly. (See Aleyrodus howardi.) 
flies injurious to Citrus in Florida 1-103 
species affecting Citrus throughout the world 10 
Winds as means of spread of Aleyrodes citri 4g 
Xanthoxylum clava-herculis. (See Ash, prickly.) 
o 
