INSECTS INJURIOUS TO AGRICULTURE IN JAPAN 



List of deciduous-JriUt insects — Continued 



11 



hemipter a— continued 



Cocci dae— Continued. 



Lecanium prunastri Fonsc 



Lepidosaphes conchiformis GmeL.. 



Lepidosaphes kuwacola Kuw 



Lepidosaphes tubulorum Ferris 



Lepidosaphes ulmi L 



Lepidosaphes ume Kuw 



Leucaspis japonica Ckll 1 



Partatoria theae Ckll 



Partatoria proteus Curt 



Phenacoccus pergandei Ckll 



Pseudococcus citri Risso 



Pseudococcus comstocki Kuw 



THYSANOPTERA 



Bethrothrips mori Niwa 



Phloeothrips sp 



Rhaphidothrips sp 



ODONATA 



Agrionidae: 



Lestes temporalis Selys 



I30PTERA 



Rhinotermitidae: 



Leucotermes speratus Kolbe 



Termitidae: 



Termes formosanus Shir 



ORTHOPTERA 



Gryllidae: 



Brachytrypes portentosus Licht 



Gryltotatpa africana P. deB 



Locustidae: 



Holochlora brevifissa Brunn 



Distribution 



Host plants 



J.K. 



Plum, cherry. 



J. 



Pear. 



J. 



Persimmon. 



J. C. 



Pear, plum, grape, currant, goose- 





berry. 



J. 



Apple, plum, currant, gooseberry. 



J. 



Plum, cherry, apricot. 



J. 



Apple, pear. 



J. 



Pear, grape. 



J.F.C. 



Pear. 



J. 



Apple, plum, cherry, persimmon. 



J. F. C. 



Mulberry. 



J. 



Pear. 



J. 



Mulberry. 



F. 



Do. 



F. 



Do. 



J. 



Apple, pear, mulberry. 



J. K.F. 0. 



Cherry. 



F. C. 0. 



Peach, mulberry. 



K. F. C. 



Mulberry. 



J. K. F. C. 0. 



Grape. 



J. 



Mulberry. 



APPLE AND PEAR INSECTS 



The major insect pests of apple in Japan are Carposina sasakii, 

 Argyresthia conjugella, Spilonota (Eucosma) ocellana, Simaethis 

 pariana, Hyponomeuta malinella, Malacosoma neustria testacea, 

 Rhynchites heros, and Xylehorus apicalis. Those upon pear are 

 Grapholitha (Laspeyresia) molesta, Nephopteryx pirivorella, Spil- 

 onota {Eucosma) ocellana, Apriona rugicollis, and Hoplocampa 

 pyricola. Okomoto lists the apple and pear pests of Chosen in the 

 following order of importance: Grapholitha molesta, Carposina 

 sasakii, Spilonota (Tmetocera) prognothana, jS. ocellana, and 

 Nephopteryx pirivorella. The production of fruit on a commercial 

 scale in Chosen has been largely restricted on account of the heavy 

 infestation by these species. 



FKUIT FEEDERS 



For purposes of comparison the four lepidopterous species which 

 feed upon the fruit, Grapholitha molesta, Carposina sasakii, Argy- 

 resthia conjugella, and Nephopteryx pirivorella, will be discussed 

 together. G. molesta (56, 60, 64, 101±, 119, 136, 137, 204) in Japan 

 and Chosen, in contrast to the condition existing in the United 

 States, is of more consequence as a pest of sand pear than of peach. 

 In addition, it attacks apple, quince, cherry, plum, apricot, and 

 Japanese apricot (Prunus ume). The distribution of the species 

 is general throughout the central and southern parts of Japan 



