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against this species, it might be stated that a section of apple tree 
thickly covered with the oyster-shell bark-louse (Mytilaspis pomorum) 
was sent to the Station in April, as having been treated with kerosene, 
by a correspondent. On receipt of the twig there was a perceivable 
odor of kerosene, but how thoroughly it had been applied we were 
unable to tell. Many of the eggs appeared quite fresh and healthy, 
and, later, larve in abundance and one parasite issued from the scales 
on the twig. Whether this is a case of resistance on the part of the 
insects, or of carelessness on the part of the man who applied the 
kerosene, we are unable to say. 
The Colorado potato beetle (Doryphora 10-lineata) has been excess- 
ively abundant. The adults appeared quite early, and as soon as the 
young plants appeared these were attacked and in many cases eaten to 
the ground and kept there. There was a widespread complaint of the 
ineffectiveness of Paris green in destroying the adults, and acres of 
potatoes were given up in despair by farmers. So little of the plant 
was left to catch the poison that the beetles did not get a sufficient 
amount to prove fatal. Later, the results of spraying were more satis- 
factory. In the autumn of 1896 the adults were unusually abundant, 
and after the potato vines were unfit for food they sought out the 
tomato vines and ate the leaves, the epidermis of the stem, and the 
green fruit. Tobacco (Nicotiana longiflora), planted for ornamental 
purposes, also suffered from their attack. 
The asparagus beetle (Crioceris asparagi) continues to spread to the 
westward, especially along Lake Erie. It is now known to occur in 
nine counties in northeastern Ohio, as follows: Ashtabula, Columbiana, 
Cuyahoga, Geauga, Lake, Mahoning, Portage, Trumbull, and Summit. 
The canker worm, Anisopteryx vernata, was more especially destrue- 
tive over a limited area in northeastern Ohio, though we occasionally 
heard of their depredations elsewhere. As usual the reports from the 
use of Paris green were conflicting, some people claiming a total failure 
and others an entire success. On some trees bands of coal tar were 
applied about 6 inches in width to the rough bark, and in one instance 
a careful estimate showed that over 500 adult males and females in 
about equal numbers had been entrapped and destroyed on a single 
tree. 
The boll worm (Heliothis armiger) caused considerable injury last 
summer in Lawrence County, the larve burrowing into the ripening 
peaches while the fruit was still hanging on the trees, the depredators 
working in the same manner as in ripe tomatoes. In autumn it depre- 
dated upon geraniums in the station greenhouses. 
Brachyrhynchus granulatus Say oceurs in southern Ohio during win- 
ter in all stages of development, except the egg, under loose bark of 
trees, and was almost universally mistaken there for hibernating chinch 
bugs. 
Voriscus ferus Linn. was observed to attack Leptoterna dolobrata 
