INSECTS. 123 
spring. This treatment has been in a measure suc- 
cessful—saving more than half the trees attacked. 
The diseased wood was at once removed from the 
orchard and burned. Among the trees badly in- 
jured or killed by the blight were some of the most 
vigorous in the orchard, giving no outward indica- 
tions of an unhealthy condition. In some cases the 
whole top of the tree was instantly killed as if by a 
stroke of lightning. To the practical orchardist this 
disease is in every way most alarming. 
Iysxcts.—TLo protect fruit trees from their insect 
enemies requires constant watchfulness at certain 
periods of the season. 
The work is not laborious, but calls for prompt 
action. For the last four years the common tent 
caterpillar has given us more trouble in the orchard 
than any other insect. Unless instant measures are 
taken to destroy them on their first appearance, they 
soon make sad havoc with the foliage. The quickest 
and most effectual way to prevent their ravages, is 
to go over the orchard carefully in winter, and re- 
move the eggs, which will be found deposited near 
the ends of the young branches and twigs. These 
eggs are protected by a glutinous substance which 
makes a rough looking surface that can be readily 
distinguished when the trees are bare of foliage. If 
any of these nests escape the notice of the operator, 
