702 



INDEX. 



Whale-oil Soap, in sprays against 

 Aphicls, etc., 72, 176, 249, 318, 

 406, 421, 453, 476, 485, 528 ; 

 formulae for, 176, 453, 485, 

 528. 

 Wheat, Sitotroga eerealella on, in 

 Argentina, 349; Heteronyx piceus 

 on, in Australia, 254 ; pests of, in 

 England, 322, 355 ; Calandra in- 

 tercepted on, in California, 177 ; 

 pests of, in Canada and U.S.A., 

 118, 119, 154, 194, 196, 287, 346, 

 448, 469, 486, 512, 517 ; pests of, 

 and their control in India, 226, 

 439 ; experiments in spraying, 

 with carbolineum in Holland, 155 ; 

 Cephus pygmaeus on, in Italy,202 ; 

 pests of, in Norway, 501 ; ter- 

 mites on, in Nyasaland, 9 ; pests 

 of, and their control in Russia, 20, 

 21, 102, 103, 163, 166, 210, 218, 

 292, 327, 330, 458-460. 



Wheat Aphis (see Toxoptem gra- 

 minwm). 



Wheat Bulb Worm (see Meromyza 

 americana). 



Wheat-head Army Worm (see Me- 

 liana albilinea). 



Wheat Joint Worm (see Tsosoma 

 tritici). 



Wheat Midge (see Contariiiia tritici). 



Wheat Stem Maggot (see Meromyza 

 americana). 



Wheat Thrips (see Franldiniella 

 tritici). 



White Acacia (see Bobinia pseiida- 

 cacia). 



White Beam (see Sorbus aria). 



White Bryony (see Bryonia alba). 



White Cacao Scale (see Pseudococcus 

 crotonis). 



White Clover (see Trifolium repens). 



White Cotton Stainer (see Dysdercus 

 andreae). 



White Goosefoot (see Chenopodium 

 album). 



White Grubs (see Lachnosterna). 



White-headed Fungus (see Opliio- 

 nectria coccicola). 



White Hellebore (see Veratrum 

 album). 



TVTiite Pine (see Pinus strobus). 



White Pine Weevil (see Pissodes 

 strobi). 



Wliite Scale (see Chionaspis ciiri). 



White Scale Fungus (see Cephalo- 

 sporium lecanii). 



White Sweet Clover (see Melilotus 

 alba). 



White Tea-leaf Scale (see Eemi- 

 chionaspis theae). 



Wliiteflies, list of, attacking citrus, 

 387 ; list of, in Br. Guiana, 360 ; 

 intercepted in Porto Rico, 365 ; 

 (see Aleurodes). 



Whitethorn, pests of, in France, 489. 



willingana, Proteopteryx. 



Willow (Salix), pests of, in Britain, 

 108, 470 ; pests of, in Canada, 

 249,430,518; pests of, in France, 

 423, 436 ; pests of, in Italy, 202 ; 

 pests of, in Norway, 504 ; pests 

 of, in Russia and Turkestan, 23, 

 103, 209, 327, 328, 332, 415, 459, 

 461, 494 ; pests of, in U.S.A., 69, 

 198, 239, 246, 247, 269, 451, 

 519. 



Willow, Crack (see Salix fragilis). 



Willow, Glossy (see Salix lucida). 



Willow, White (see Salix alba). 



Willow Beetle (see Cryptorrhynchus 

 lapathi). 



wilsoni, Platypus. 



Wilt Disease, infesting Lepidoptera, 

 195, 303, 420 ; relation of insects 

 to spread of, in U.S.A., 200. 



Winter Cress (see Barbarea vulgaris). 



Winthemia quadripusiulata, para- 

 sitic on Pergesa porcellus in Swe- 

 den, 509 ; parasite of Xylina 

 nupera in U.S.A., 174. 



Wireworms, bionomics and control 

 of, in Britain, 235 ; in Br. Co- 

 lumbia, 361 ; on beet in France, 

 489 ; on cereals, etc., in Norway, 

 501, 502 ; on tobacco in Porto 

 Rico, 366 ; and their control in 

 Russia. 296, 328, 499 ; and their 

 control in U.S.A., 15, 251, 398; 

 destroyed by rooks, 328. 



Wistaria, pests imported into U.S.A. 

 on, 52, 199, 236, 276, 399. 



ivistariae, Chionaspis. 



Withamia organifolia, Saissetia nigra 

 on, in the Philippines, 367. 



woglumi, Aleurocanthus. 



Wood Leopard Moth (see Zeuzera 

 pyrina). 



Woodpeckers, destroying insects, 24, 

 35, 281, 352, 506 ; economic im- 

 portance of, in Britain, 24. 



Wood Pewee (see Contopus richard- 

 soni). 



Woolly Aphis (see Eriosoma lani- 



gerum). 

 Woolly Currant Scale (see Piilci- 



naria vitis var. ribesiae). 

 Woolly Pear Aphis (see Eriosoma 



pyricola). 

 Wormwood (see Artemisia absin- 



thium). 

 Wrens, protection of, in Russia, 

 328. 



X. 



xanthocerus, Physothrips. 

 Xanthoecia flavago, infested with 



Bombycis gortynae, 303. 

 xanthogastrella, Scirpophaga. 



