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The following discussion of the insect enemies of the strawberry 
s been prepared, as far as possible, with these points in view, 
iiave given first a classification, or synopsis, of insect injuries to 
ls plant, arranged in the form of an ordinary key for the deter- 
ination of species in natural history, but containing no unneces- 
ry references to the insects themselves; and have added indica¬ 
ms of the proper remedies, in the form of figures and letters re- 
rring to the classification of remedies on a following page. In 
king up subsequently for description and discussion, the sepa- 
te species of insects known to attack the strawberry, I have 
ranged these also on the same plan, grouping together under each 
bdivision of the classification of insect injuries, all the species 
>w known to produce that especial form of injury. 
As an illustration of the use of the “key” given above, let us 
ppose that the strawberry grower notices, after the fruit is har- 
sted, that many of the leaves of his plants are folded or rolled 
gether; and that on opening these he discovers a caterpillar in 
e fold which has evidently been eating away the surface of the 
if. This injury comes under “Injuries to the Leaf and Leaf 
em” (A). Looking at the next line below this in the table he 
aces it at once in the class of injuries (1) done by eating away 
e tissue of the leaf. Following the key still further, he finally 
icides that it is not done by an exposed insect (b*) but by an 
sect rolled in the leaf (b**). Against this group lie finds the 
ferences 3c, 4a, by the first of which he is cited to the discus- 
on of the method of destroying insects of feeble locomotive power, 
midsummer, after the fruit is picked, by mowing and burning 
rer the field; and by the second, to the use of arsenical poisons. 
A. Injuries to the Leaf and Leaf Stem. 
The tissue of the leaf eaten away. 
a. When the plant is in fruit. 
* By an exposed insect, 4c, 3a. 
** By an insect concealed in a rolled or folded leaf, 
3a. 
b. When not in fruit. 
* By an exposed insect, 4a. 
I ** By a concealed insect, 3c, 4a. 
i The tissue not eaten, but pierced, and drained of sap. 
a. A gall on the stem, 3a. 
si b. Not making gall, 4cde. 
B. To the Flower and Flower S.tern. 
By an exposed insect, 3b, 4c. 
By an insect concealed in a cluster of webbed leaves and 
blossoms, 3a. 
