764 



INDEX. 



westwoodi, Apocrypta. 



weyeberghi, Theridium. 



Weyniouth Pine (see Pinus strobus). 



Whale-oil Soap, in sprays against 

 Aphids, Coccids, Aleiirodids, 

 Tlirips etc., 49, 70, 118, 119, 164, 

 171, 186, 202, 203, 204, 221, 245, 

 307, 311, 315, 337, 397, 553; 

 and nicotine, 202, 204, 307, 553 ; 

 formulae containing, 49, 70, 80, 

 203. 



Wheat, pests of, in British Isles, 

 68, 484, 515, 516 ; control of 

 pests of, in Canada, 238, 260, 265, 

 331, 333 ; pests of, in India, 123, 

 126-128, 359, 556, 574 ; pests of, 

 in Italy, 180 ; pests of, in Kussia, 

 28, 91, 201, 302, 303 ; Contarinia 

 tritici on, in Sweden, 532 ; pests 

 of, in U.S.A., 64, 65, 142, 173, 

 185, 213, 214, 284, 285, 314, 361, 

 411, 413, 431, 434, 461, 464, 507, 

 578 ; influence of, on distribution 

 of Laehnosterna, 64 ; stored, 

 pests of, intercepted in Hawaii, 

 580 ; not attacked by Loxostege 

 similalis in Oklahoma, 397 ; in 

 poison bait for cutworms, 369. 



Wheat Aphis (see Toxoptera gra- 

 in inum,). 



Wheat-head Army-worm (see Meli- 

 ana albilinea). 



Wheat Wire-worm (see Agriotes 

 mancus). 



White Ants (see Termites). 



White Cacao Scale (see Pseudo- 

 coceus crotonis). 



White Fir (see Abies eoncolor). 



White Grubs (see Laehnosterna 

 spp.) 



White Hellebore (see Verairum 

 album). 



White-marked Tussock Moth (see 

 Hemerocampa leucostigma ) . 



White Pine (see Pinus strobiis). 



White Pine Blister Disease, quaran- 

 tine against, in Pennsylvania, 

 336. 



White Pine Weevil (see Pissodes 

 strobi). 



White Scale (see Chionaspis eitri 

 and Hemichionaspis minor). 



White Spruce (see Picea alba). 



Whiteflies, list of, infesting citrus, 

 473 ; (see Aleurodes). 



Whitethorn (see Hawthorn). 



whitmani, Aprostocetus. 



Wiehmannia decorata, gen. et sp. n., 

 parasite of Liparthrum albidum 

 in Istria, 95. 



willamettei, Tetranyehus. 



vvilliana, Melipona (Trigona). 



Willistonia esuriens, parasite of 

 Automeris janus in Trinidad, 

 443. 



Willow (Salix), pests of, in Britain, 

 68, 163, 516 ; pests of, in 

 Canada, 116, 333, 548, 550; 

 Maerotoma palmata on, in Egypt, 

 293 ; Cossus cossus on, in France, 

 373 ; Glieimatobia brumata on, 

 in Holland, 42 ; Lepidosaphes 

 ulmi on, in Italy, 180 ; Teirany- 

 chus peruvianus on, in Peru, 167 ; 

 pests of, in Kussia, 29, 512 ; pests 

 of, in U.S.A., 64, 73, 162, 220, 

 238, 259, 291, 407, 419, 494. 



Wilt Disease, selections of varieties 

 of cotton resistant to, in Georgia, 

 289 ; of Lymantria dispar in 

 U.S.A., 178. 



Wind, effect of, on distribution of 

 insects, 209, 214, 215, 278, 414. 



Wine, effect on, of spraying vines 

 with arsenicals, 353. 



Wine Palm (see Caryota urens). 



Winter Moth (see Cheimatoba bru- 

 mata). 



Winthemia quadripustulata (Red- 

 taiJed Tachina Fly), parasite of 

 Lepidoptera in Denmark, 485 ; 

 parasite of Lepidoptera in U.S.A., 

 72, 77, 174, 207, 309. 



Winnertzia pinicola, on Pinus sil- 

 vestris, 319. 



Wireworms, in Brazil, 472 ; control 

 of, in Britain, 516 ; on cereals 

 in Canada, 548 ; predaceous on 

 Bhopaea vestita in Fiji, 182 ; infest- 

 ing grain in Russia, 151 ; on 

 cereals in U.S.A., 179 ; destroyed 

 by birds, 348, 402 ; killed with 

 carbon bisulphide, 579 ; method 

 of studying habits of, 216; (see 

 Agriotes, etc.). 



Wisconsin, beneficial parasites in, 

 10, 526. 



Wistaria, pests intercepted on, in 

 California, 266, 474 ; little 

 injured by Aspidiotus perniciosns 

 in Illinois, 62. 



wistariae, Chionaspis. 



Witch-hazel {Hamamelis), not at- 

 tacked by Aspidiotus perniciosus 

 in Illinois, 62 ; Leptoypha distin- 

 guenda on, in U.S.A., 539. 



Woburn Mixture, formulae for, 

 356 ; experiments with, against 

 Lepidosaphes ulmi, 166. 



woeberiana, Enarmonia {Grapho- 

 litha). 



woglumi, Aleurocanthus (Aleurodes). 



Wolffiella ruforum, gen et. sp. n., 

 parasite of Lophyrus rufus in 

 Germany, 281. 



Wolves, destroying Locusta migra- 

 toria in Siberia, 87. 



Wood-alcohol, in emulsions against 

 Erisoma lanigerum, 395. 



woodi, Dacus. 



