750 



INDEX. 



Zeuzera coffeae (Eed Borer, Coffee 

 Borer), on tea in Ceylon, 315, 

 539 ; on tea in India, 475 ; 

 infesting tea etc. in Dutch E. 

 Indies 37, 350 ; on coffee in 

 Indo-China, 129. 



Zeuzera pyrina, on pomegranate in 

 Egypt, 50 ; on apple in Italy, 

 143 ; on apple and lilac in 

 Sweden, 149; in Switzerland, 367. 



Zinc Arsenate, experiments in 

 spraying with, against Diabrotica 

 viitaia, 201 ; effect of prickly 

 pear sap in sprays of, 472 ; 

 more adhesive than calcium 

 arsenate, 560. 



Zinc Arsenite, experiments in 

 spraying with, against Diabrotica 

 vittata, 201 ; and lime, formula 

 for, against Epilachna corrupta, 

 299, 300 ; and cactus detritus, 

 formula for spraying with, against 

 Pilocroeis tripunctata, 82 ; experi- 

 ments with, against vine-moths, 

 73 ; ineffective against Pieris 

 rapae, 201 ; compared with 

 calcium arsenate, 329, 330 ; 

 determination of arsenic in, with 

 potassium iodate, 440. 



Zinc Oxide, in mixture against 

 Eriosoma lanigernm, 471. 



Zinc Sulphide, for emulsifying 

 petroleum, 27. 



Zinnia, Eeliothis obsoleta on, in 

 Nyasaland, 70. 



Zinzelat, Apate monaeha on, in 

 Syria, 50. 



ziziphus, Parlatoria. 



zizyphi, Aphis. 



Zizyphus, Parlatoria chinensis on, 

 in China, 206 ; Geroplastes cajani 

 on, in India, 86. 



Zizyphus jujuba (Ber), food-plant 

 of Tachardia lacca in India, 513. 



Zizyphus spina- chr is ti, Aphis zizy- 

 phi on, in Egypt, 209. 



zonatus, Dacus. 



Zonocerus, Coccobacillus ineffective 

 against, 288. 



Zonocerus elegans, control of, on 

 coffee in Br. E. Africa, 15. 



Zonocerus variegatus, control of, on 

 coffee in Br. E. Africa, 15 ; on 

 cacao in Belgian Congo, 79. 



Zophodia convolutella, on goose- 

 berries in Sweden, 149. 



Zophodia grossulariae (Grooseberry 

 Fruit- Worm), measures against, 

 in Minnesota, 372 ; in Ne« 

 York, 451. ; 



Zophosis hoiei, habits of, on maize 

 and tobacco in Rhodesia, 337, 

 338. 



Zyqaena occitanica, parasites of, in 

 France, 262. 



Zygobothria nidicola, probable toxic 

 action of Apanteles lacteicolor on, 

 in U.S.A., 511. 



Zygothrips americanus, in bark of 

 trees in Maryland, 34. 



