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State where experiments have been made. The number of larve 
caught is sometimes very large. Professor Aldrich records that the 
highest number he found on one tree ina week was 110. Various per- 
sons have found from 50 to 190 on neglected trees. I once found 170 
under a neglected band anda cloth in the crotch of a large tree. In 
1898 Mr. Ayres obtained from 6 to 15 worms per tree throughout the 
season. In the maximum in September I have obtained on large trees 
as many as 20 to 30 daily for a few days, in a neglected orchard. Pro- 
fessor Aldrich records that in his banding experiments he obtained 215 
worms per tree for the season of 1899. 
The worms which have been collected under bands should be killed 
every seven days. Six days is recommended by some. I think six 
days too short as but few moths emerge before seven or eight days. 
However, the person who is killing the larve can easily tell whether 
the time is too long or too short. If old pupal skins are found the 
time is too long, and if no larvee have changed to pup the time is too 
short. 
Many ways of killing the larvee have been used, such as burning 
temporary bands, plunging the permanent bands in hot water, or run- 
ning them through a clothes wringer. I find that the majority of 
fruit growers in Idaho simply crush the worms, or cut them with a 
knife. Hon. Edgar Wilson suggested to me that, as the larvee used 
parts of the band and bark with which to build its cocoon poisoning 
the band might be an easy way of getting rid of many. I tried soak- 
ing the cloth bands in strong solution of paris green, but the results 
do not warrant any definite statement. I believe that this may kill 
some of the last spinning up, but doubt its efficiency of the earliest 
broods. However, it is worthy of further investigation. In want of 
better knowledge many people apply bands and do not kili the worms 
that have collected. In this way the insect is positively aided. Pro- 
fessor Gillette records a fact that must be noted. He finds that in the 
spring the larve leave their old cocoons and migrate to other places 
and spin new ones. This, however, is not always the case, but it 
should be guarded against. Bands should be applied about two weeks 
after the blossoms have fallen and be kept on for a week or so after 
all the fruit has been picked in the orchard. 
Banding should always be practiced in connection with spraying, 
and by this combination the best results are obtained. 
By spraying with Paris green and London purple and by banding, 
Mr. Tiner, of Boise, saved about 80 per cent of his apples. This 
orchard is in the city of Boise and has neglected orchards all around it. 
Hon. Edgar Wilson used arsenites and banding. In the part of the 
orchard not infested by the moths from the apple house the loss is 
estimated from 5 to 10 per cent. In Mr. Fremont Wood’s orchard the 
results were about the same. . 
