27 
At the suggestion of Hon. Edgar Wilson the writer again experi- 
mented with Paris green in and under the bands to find whether or not 
the worms would get any of the poison and be killed. Five bands 
were thoroughly soaked in a strong solution of Paris green and a 
large quantity of the dry poison was dusted on 10 others. These 
were placed upon trees and examined every day or two. Mot a single 
larva was found dead. Many were found to have spun their cocoons 
in the poison which was laying in the crotches of the trees. 
Bands should be placed upon the trees not later than the middle of 
June and should not be finally removed until about a week after the 
crop has been harvested. By a close watch on a few bands one can 
tell when the worms begin to descend in the spring. After the first 
week in September it is found that very few, if any, larvae change to 
pupae and emerge. It is not advisable to let any bands stay on the 
trees all winter, as they rot, and the cost of bands is a considerable 
item in a large orchard. 
Many fruit growers believe that under favorable circumstances they 
can save almost half their crop by banding alone. 
It is strongly urged that, late in the fall, during the winter, or early 
in the spring, the orchard be examined, and all the larvae found in 
crevices and under the bark of the trees killed. 
MEASURES AGAINST THE ADULT. 
TRAP LANTERNS. 
Considerable effort has been made to put the facts about trap lan- 
terns before the Idaho apple growers. The agent for a patented trap 
sold 240 in Boise and vicinity. He claimed that he caught 6 codling 
moths in one night. A majority of the growers who bought these 
traps found out for themselves that this method is useless. A very 
few still advocate its use. The writer did not think the method worthy 
of experiment. 
BAITING THE MOTH. 
One fruit grower at Mountainhome uses buckets of cider or vinegar, 
with which he says he catches large numbers of codling moths. Dr. 
Riley's experiences show that these catchings must have been acci- 
dental. The writer set out some of these cider buckets and in two 
weeks while the moths were flying caught but few. The notes on the 
experiment were misplaced, but the writer remembers that about 10 
codling moths were caught and many Noctuids. At best the results 
of the method would in no way be commensurate with the expense. 
iu£stjm:e and conclusion. 
As has been before stated, the codling moth can not be exterminated 
throughout the Pacific northwest. Reduction of the damage with 
