INDEX. 85 



Page. 



Petroleum, crude, remedy for San Jose scale 77 



soap emulsions, remedies for San Jose scale 78-79 



Phoetenia glauca, food plant of Aspidiotus perniciosus var. andromelas 55 



Photinia villosa, food plant of San Jose scale 39 



Physcus varicornis, is it parasite of San Jose scale? 58, 60 



scale hosts 60 



Physocarpus opulifolius, food plant of San Jose scale 39 



Picea alba, food plant of San Jose scale 39 



Plum. (See Prunus maritima, P. domestica, P. triflora, P. cerasifera var. atro- 



purpurea, and P. hortulana.) 

 Poplar. (See Populus sp., P. deltoides, and P. nigra var. italica.) 



Populus deltoides, food plant of San Jose scale 37 



nigra var. italica, food plant of San Jose scale 37 



sp. , food plant of San Jose scale 37 



Privet. (See lAgustrum vulgare and L. ovalifolium. ) 



Prospalta aurantii, parasite of San Jose scale 58, 60 



Protective resemblance, in San Jose scale 57 



Prunus amygdalus, food plant of San Jose scale 37 



armeniaca, food plant of San Jose scale 37 



avium., food plant of San Jose scale 37 



cerasifera var. atropurpurea, food plant of San Jose scale 37 



cerasus, food plant of San Jose scale 39, 41 



domestica, food plant of San Jose scale 37 



hortulana, food plant of San Jose scale 37 



japonica, food plant of Jan Jose scale 37 



maritima, food plant of San Jose scale 37 



persica, food plant of San Jose scale 37 



pissardi. (See Prunus cerasifera var. atropurpurea.) 



pumila, food plant of San Jose scale , 37 



A'^ar besseyi, food plant of San Jose scale 37 



serotina, food plant of San Jose scale 37 



triflora, food plant of San Jose scale 37 



tirginiana, food plant of San Jose scale 37 



Pseudoweisea suturalis=Microweisea suturalis 64 



Ptelea trifoliata, food plant of San Jose scale 37, 41 



Pyrus baccata, food plant of San Jose scale 37 



communis. ( See also Pear. ) 



food plant of San Jose scale „ 37 



malus. (Seealso Apple. ) 



food plant of San Jose scale „ , 37 



sinensis. (See also Pear, Kieffer. ) 



food plant of San Jose scale „ 37 



sp. , food plant of San Jose scale 37 



Quince. (See Cydonia vulgaris and C. japonica.) 

 Raspberry, red. (See Rubus strigosus. ) 



Rhizobius dehilis, enemy of San Jose scale , „ , „ 62 



lophantlise, enemy of San Jose scale , „ . . , 62 



Rhodotypos kerrioides, food plant of San Jose scale 39 



Rhopoideus ciirinus, parasite of San Jose scale 58, 61-62 



Rhus cotinus, food plant of San Jose scale 39 



sp. , food plant of San Jose scale 39 



Ribes aureum, food plant of San Jose scale 37 



nigrum, food plant of San Jose scale 37 



