iv PREFACE. 
Worcestershire, we have noteworthy coincidence (or sequence) of 
special settlement of insect infestation where its food was, by 
power of gales of wind and other meteorological circumstances, 
thrown down in vast quantities ready for its attack. 
The most important observation of the year, from an econo- 
mical point of view, is probably that of ‘‘ Onion-sickness,”’ 
arising from the presence in the bulbs of the Stem Eelworms, 
which we already know only too well in connection with ‘‘Tulip- 
root,’ and with ‘‘ Clover-sickness.’”’ Full details will be found 
under the above heading, and this will very likely give us the 
clue to the reason of the frequent bursting of Onions, and 
also of difficulty of growing them (to any serviceable purpose) 
in special localities, and, the cause once known, prevention of 
recurrence of attack is cheap and simple. 
In the observations of the year I have endeavoured, as far as 
possible, only to enter on those that have not been previously 
much brought forward ; or, in the case of old-established pests, 
where advance has been made in methods of prevention, as with 
‘“Codlin Moth”; or in unusual amount, as with ‘‘ Leafage 
Caterpillars”; or with some new crop subjected to attack, as 
with ‘‘ Beet Carrion Beetle” at Potato leafage. 
The following list enumerates the greater part of the kinds 
of British attacks regarding which enquiries were sent, arranged 
under the headings of the orders to which they belong :— 
Beetles (Coleoptera), 
Alder Leaf Maggots, Galerucalineola . . . . . . Alder leaves. 
Asparagus Beetle, Crioceris asparagi. . . . . . . Asparagus shoots. 
Beet Carrion Beetle, Silphaopaca. . . . . . . . Mangold & Potato leaves. 
Bacon Beetle, Dermestes lardarius . . - », « «) Meat ctie: 
Bone and Leather Beetle, Dermestes vulpinus . . . + Bones, Wood, &e. 
Chafer, Cockchafer, Melolontha vulgaris . . . . . Leafage and Grass roots. 
5, Rose, Phyllopertha horticola. . . . Flowers, leaves, and Grass roots. 
Pear ‘“‘Oblong’’ Beetle, Phyllobius oblongus . . . . Pear and Apple leaves. 
Pine Beetle, Hylurgus piniperda . . . . Pine bark and shoots. 
“Soldiers” and ‘‘Sailors,’’ Telephorus of different species Carnivorous (beneficial). 
Turnip Flea Beetle, different species . Turnip leaves. 
», Flower Beetle, Meligethes eneus . Turnip blossoms & buds. 
,, Seed Beetle, Ceutorhynchus assimilis . . . . Turnip seed. 
Weevil, Black Vine, Otiorhynchus sulcatus. . . . . Strawberry roots, &c. 
,, Clay-coloured, Otiorhynchus picipes . . . . Raspberry and Hop. 
.. Granary, Calandra (Sitophilus) granaria . . Stored Corn. 
= oryzeé . . . Stored Corn and Rice. 
» Pea and Bean Leaf, Sitones of different species . Pea and Bean leaves. 
» Pine, Hylobius abietis . . . . Pine bark and buds. 
Turnip Root-gall, Ceutorhynchus sulcicollis . . Turnip root-galls. 
Wireworms (larvee of various Elaters). . . . . . . Roots of Grass and crops. 
