724: 



INDEX. 



postica, Orgyia. 



posticaia, Agromyza. 



'posticus, Phytonomus (see Hypera 

 variabilis). 



vostvittana, Toririx. 



Potamogeton, Bhopalosiphum nym- 

 phaeae migrating to, in U.S.A., 

 229, 409. 



Potash Soap, against Aphids, 81 ; 

 and tobacco against vine moths, 

 486. 



Potassium Arsenate, experiments 

 with, against Ehagoletis pomo- 

 nella, 190. 



Potassium Arsenite, against vine 

 pests in France and Algeria, 47. 



Potassium Bichromate, as a substi- 

 tute for sodium arsenate, 237 ; 

 experiments with, in formula for 

 a winter cover-wash, 360. 



Potassium Cyanide, in preparation 

 of hydrocyanic-acid gas, 261, 

 284, 352, 413 ; sodium cyanide 

 as a substitute for, 413 ; (see 

 Hydrocyanic Acid). 



Potassiiim Fcrrocyanide, for testing 

 Bordeaux mixture, 337. 



Potassium Iodide, solution of, for 

 testing lead acetate, 139. 



Potassium Permanganate, and for- 

 malin for disinfecting potatoes, 

 83. 



Potassium Polysulphide (Liver of 

 Sulphur), and paraffin emulsion 

 against American gooseberry 

 mildew, 363. 



Potassium Sulphate, for fertilising 

 against Eriocampoides limacina, 

 107 ; ineffective against Xyle- 

 borus fornicatiis, 282. 



Potassium Sulphide, in sprayagainst 

 Feliia exclamationis, 452 ; spray- 

 ing with, against Tetranychus 

 telarius, 244. 



Potassium Sulphocarbonate, against 

 Phylloxera, 554 ; fumigating soil, 

 with, against Meloloniha, 391. 



Potato {Solanum tuberosum), Pseu- 

 dococcus affinis on, in Australia, 

 100 ; pests of, in Ireland, 487 ; 

 pests intercepted on, in Cali- 

 fornia, 12, 146, 182, 267, 423, 474; 

 legislation regarding, in Cali- 

 fornia, 184 ; pests of, in Canada, 

 331, 333, 547, 549; Lepidop- 

 terous borer of, in Ceylon, 102; 

 pests of, in Colombia, 80, 81 ; 

 control of pests of, in Cuba, 80 ; 

 Euzophera osseatella on, in Egypt, 

 489 ; pests of, in Germany, 34, 

 97 ; Epilachna on, in the Dutch 

 E. Indies, 442 ; planted against 

 Sesamia ruteria in Mauritius, 440 ; 

 Agriotes in, in Russia and Turke- 

 stan, 29, 91, 252; pests of, in 



U.S.A., 11, 22, 133, 141, 179, 185, 



228, 285, 286, 307, 315, 322, 323, 



364, 371, 386, 388, 433, 463, 490, 



492, 527 ; Thrips tabaci on, in 



Xew South Wales, 108 ; formulae 



for solutions for disinfecting, 83 ; 



damaged by lime-sulphur, 494. 

 Potato, Black (see Coleus tubero- 



sus). 

 Potato, Sweet (see Sweet Potato). 

 Potato Aphis, Scymnus cassiroini 



predaceous on, in S. Africa, 402 ; 



(see Macrosiplium solanifolii). 

 Potato Beetle, Colorado (see Lepti- 



noiarsa decemlineata). 

 Potato Canker (see ChrysopMyctis 



endobiotica). 

 Potato Earth Flea-beetle (see Psyl- 



liodes affinis). 

 Potato Flea-beetle (see Epitrix 



cucumeris). 

 Potato Stalk Weevil (see TricJio- 



baris trinotata). 

 Potato Tuber Moth (see Phthoriviaea 



operculella). 

 Potentilla, Melolontha feeding on, 



in Russia, 298. 

 Potentilla canadensis, Empria 



■maculata on, in Canada and 



U.S.A., 142. 

 Poultry (see Fowls). 

 Powdery Mildew (see Sphaerotheca 



pannosa). 

 praeceps, Mintho. 

 praecox, Lycophotia {Agrotis). 

 praefectata, Xanthorhoe. 

 praelonga, Orthezia. 

 praemorsus, Leptostylus. 

 praesignata, Sch istocerca. 

 praetermissa, Lachnosterna. 

 Prairie Clover (see Petalostemum 



pupureum). 

 Prairie Clover Weevil (see Apion 



varicorne). 

 Praon, construction of cocoon of, 



582. 

 Praon americamcs, parasite of Ma- 



crosiphum granarium in U.S.A., 



131. 

 Praon brunneiventris, parasite of 



Ma'Srosij)hu)ngranariumiiii].8.A., 



131. 

 Praon ferruginipes, parasite of 



IlacrosiphmngranariuminlJ.ii.A., 



131. 

 prasina. Mantis ; Palomena. 

 pratensis, Bryobia ; Lygus. 

 Prenolepis, intercepted on plants 



from Japan, 491. 

 Prenolepis bourbonica, intercepted 



in Hawaii from Java and Philip- 

 pines, 72. 

 Prenolepis fulva, warning against 



the use of, to control Atta sexdens 



in Brazil, 235, 441. 



