26 INDEX TO CIRCULARS 1 TO 100. 
Greenhouses, infestation by Diabrotica vittata............-..--------- 
We plocontsiLTUULaLus: oe. ceo oe eee eee 
Den Mes UUUIN CS me smcine winced <e ane eee ets 
Grosbeak, rose-breasted, enemy of Leptinotarsa decemlineata..--...-.-- 
Ground beetle, fiery. (See Calosoma calidum.) 
slender seed-corn. (See Clivina impressifrons.) 
beetles, enemies of Lewcania unipuncta.......-.-.---------- 
ivy. (See Nepeta glechoma.) 
Groundsel. (See Senecio.) 
Grouse, ruffed, enemy of Leptinotarsa decemlineata ...........--+--- 
<“Grubbycattles2smeanin oontermsssacss-scee eee cen ee nee ee nneeEee 
“Grub,” colloquial name for Hypoderma lineata........-..---------- 
Grubs, white, kerosene emulsion as insecticide. ..............-.....- 
Gum; injury by; Platypus compositus: 2... - 2-5. - 2 ees econ een sae 
Gunpowderacainsticockroaches "asses. a. sec cecacceces ce san er eae 
Gypsum and kerosene against squash bug..-..-.-........----.----- 
turpentine against squash bug..................--.... 
Gypsy moth. (See Porthetria dispar.) 
H. 
Habrocytus thyridopterigis, hyperparasite of Thyridopteryx ephemer- 
Lain moodOhehtneolMUrSeluellammcnnecas cote emt e ne cee eee eee 
worm, cabbage (see also Mermis albicans). 
OSTS fo ees yest See eect ee ee ome see 
positively not poisonous: =-22.5.- css scee eeeee 
Hand destruction against house centipede........................-- 
method against plum curculiols.-.-.--+--cssessnceeee ee Peas 
methods against seed-corn maggot............-.------.-.----- 
squash-vine borer 
DASWORMN 2. saecctsssecn cee ceeececoeenee ae 
Cabbaronmarrotesd.ccccssecsisce Soon ce eee 
catalpa sphinx 22. scsi ees rc eee 
imported cabbage worm.............-.-.....- 
periodicalicicadassssc-sessssssses eee ee eee 
rose-chateree ete echesocsecossene -o soe meee 
Squashitbuger.jccke tse wccce sess ecco eeweeeen 
Harpalus caliginosus, enemy of Leptinotarsa decemlineata..-........- 
Hanyestmitesion “chigpersicinrcularos-csens secs. eee e scene pee 
ISHS ONES Sn Coops saeD nec cucedessseresan 
Hawaii, requirements relative to shipment of nursery stock......... 
Haw, food plant of Conotrachelus nenuphar......--.--.------------- 
Hawk, sparrow, enemy of grasshoppers...........----...---------.- 
Swainson, enemy of grasshoppers.....-.--- 
Hawthorn, food plant of Pulvinaria innumerabilis. 
SCOLPLUSTAUNGULOSUS | eee eee aaee eee ents 
Hazel, food plant of Balaninus obtusus.......-...-.--.-------------- 
Hazelnut weevil. (See Balaninus obtusus.) 
Heat. (See Temperature and Weather.) 
Heatingagamst chestnut weevilSo- +. sses-cecserece ci nce oe ooe secs 
POwder-postibeetles {ees smaseeeee eee eee 
“Heel fly,’ colloquial name for Hypoderma lineata......-..--..-.--- 
Heliothis obsoleta, Paris green as remedy.......--.------------------- 
Heliotrope, food plant of Aleyrodes vaporariorum...-..-.------------ 
Hellebore against imported cabbage worm.........-..-.---.---.--.- 
PBT SUG asso a cassia iawe cose ceils Sacmnincaceeonace 
inefiective against rose-chafers =~. ssacee seers sec acuce se. 
Hemerobius gossypii, enemy of Aphis gossypii..........-------------- 
Hemerocampa leucostigma. (See Tussock moth, white-marked.) 
Hemiteles mesochoridis, parasite of A panteles congregatus......-.--..- 
: scolyti, parasite of Scolytus rugulosus ..........------------ 
thyridopterigis= A llocota thyridopterigis......-..------------ 
Hemlock bark beetle. (See Hylesinus n. sp.) 
maggot. (See Cheilosia alaskensis.) 
Western, ‘Black check” injury, circular................-. 
host tree of Cheilosia alaskensis........-....-..-. 
Aylesinus NoSp..-..- 622.2 Hedin fee Ke.2 
Henbane. (See Hyoscyamus.) 
Hen louse. (See Menopon pallidum.) 
manure, ineffective against strawberry weevil......-.--------- 
Herbariums, reported infestation by Tineola biselliella.......-....-- 
Hessian fly. (See Cecidomyia destructor and Mayetiola destructor.) 
Heteropus ventricosus. (See Pediculoides ventricosus.) 
Heydenia unica, parasite of Scolytus rugulosus...........------------ 
Hibiscus. (See Mallc~ and Mallows.) 
Hickory, food plant of Chrysobothris femorata............----------- 
Hippodamia convergens, enemy of Aphis gossypii.....-..------------ 
Leptinotarsa decemlineata....-....- 
Circular 
No. 
39, rev. 2 
Page. 
