74 
Hose-pole device for spraying trees, 20 
Hyphantria cunea, 36, 39, 55 
punctata, 39 
punetatissima, 39 
textor, 39 
Imago of Bag-worm, 25 
Imported Elm Leaf-beetle, 10 
White-marked Tussock-moth, 32 
Importation of Elm Leaf-beetle from Surope, 8 
Imported Elm Leaf-beetle, 8, 59 
Influence of tree-boxes, 66 
Injury done in 1886 by the Fall Web-worm, 40 
to Elm trees in 1882 and 1883, 14 
Insecticides, 62 
Larva of Bag-worm, 23 
Imported Elm Leaf-beetle, 10 
Fall Web-worm, 38 
White-marked Tussock-moth, 29 
Leaf-eaters, the four principal, 8 
Le Conte’s statements in regard to the Imported 
Elm Leaf-beetle, 12 
Limneria pallipes, 55 
parasites-of, 57 
Limitation of broods of Fall Web-worm, 36 
London purple, 62 
used against Imported Elm Leaf-beetle, 13, 17 
Mantis carolina, 13, 47 
Maple Bark borer, 66 
Marpessa undata, 46 
Mechanical means of applying poison to Imported 
Elm Leaf-beetle, 19 
Metallic hand-pipe, with diagonal nozzle, 21 
Meteorus hyphantrie, 51, 52, 68 
' parasites of, 57 
Microgaster sp., 34 
Moth of Fall Web-worm, 39 
Mulching, 66 
Natural enemies of White-marked Tussock-moth, | 
33 
Natural history of Bag-worm, 23 
Fall Web-worm, 36 
White-marked Tussock-moth, 
29 
Negundo aceroides, 60 
Nixon, A. H., nozzle invented by, 63 
Oneideres cingulatus, 30 
Orgyia attack, new form of, 30 
leucostigma, 12, 29 
Paleacrita vernata, 59 
DPanstenon sp., 57 
Parasites of Apanteles hyphantric, 57 
Fall Web-worm, 51 
Limneria pallipes, 57 
Meteorus hyphantrice, 57 
W hite-marked Tussock-moth, 34 
Paris green, 62 
used against Imported Elm Leaf-beetle, 13, 18 
Past history of the Elms affected by Imported 
Elm Leaf-beetle, 14 
Peculiar effect of defoliation by the Fall Web- 
worm, 45 
Perilitus communis, 53 
Pimpla conquisitor, 28 
inquisitor, 28, 34 
Platynus punctiformis, 13 
Podisus spinosus, 48 
INDEX. 
Populus alba, 58 
Predaceous insect enemies of Fall Web-worm, 47 
Preferences of Elm Leaf-beetles, 15 
Preparation of London purple against Imported 
Elm Leaf-beetle, 17 
Preventive effects of arsenical poisons, 16 
measures, 61 
remedy for all, one simple, 61 
Principal leaf-eaters, four, 8 
Prionidus cristatus, 33, 47 
Prospects the coming season, 71 
Pruning, 69 
Pruning and burning, 65 
Pteromalus sp., 28, 34, 57 
Pupa and cocvon of Fall Web-worm, 39 
of Imported Elm Leaf-beetle, 10 
| Pupation of Bag-worm, 25 
Imported Elm Leaf-beetle, 12, 13 
‘White-marked Tussock-moth, 32 
Pyrethrum powder against Imported Elm Leaf- 
beetle, 13 
Quedius molochinus, 13 
lear-horse, 47 
Recent experience at the Department with the 
Imported Elm Leaf-beetle, 14 
Reduvius novenarius, 13 
| Remedies against Imported Elm Leaf-beetle, 11 
and preventive measures, 61 
Reply to inquiries about the Imported Elm Leaf- 
beetle, 12 
Robin, 33 
| Saperda, 67 
Scops asio, 46 
Screech-owl, 46 
Soldier-bug, 33 
Spiders eating Fall Web-worm, 46 
Spilochalcis marie, 28 
sp., 57 
Spring Canker-worm, 59 
Stirrer pump, with barrel and mixer, 19 
Summary of habits of the four species, 59 
Tachina sp., 28, 34 
from Fall Web-worm, 55 
Tachyporus jocosus, 13 
Tarred paper to kill Imported Elm Leaf-beetle, 13 
Telenomus bifidus, 51 
sp., 34 
Tetrastichus sp., 33, 57 
The future of our trees, 69 
| Toad, the common, 46 
Thyridopteryx ephemereformis, 23 
Tree-boxes, influence of, 66 
Trees, good and bad effects, 70 
which are uninjured, 70 
| Trichogramma ? fraterna, 34 
2? orgyiee, 34 
Trochilium acerni, 66 
Lroughs to catch Imported Elm Leaf-beetle, 13 
Tussock-mwoth, the White-marked, 29, 60 
Ulmus americana, 15, 30 : 
campestris, 15, 16 
effusa, 15 
montana, 15 
parvifolia, 15 
siberica, 15 
suberosa, 15 
