The More Important Apple Insects. 85 
A form of band that has given satisfactory results is made from cheap cotton 
batting and single-ply tarred building paper. ‘The cotton should be cut into 
strips about 2 inches wide and 
wrapped around the tree trunk 
so as to fill all the crevices of 
the bark. Over the cotton is 
placed a strip of tarred paper 
(fig. 174) about 5 inches wide, 
drawn tightly and _ securely 
tacked where it overlaps. The 
sticky material is then spread 
on top of the paper (fig. 175). 
COTTON BATTING. 
Barriers other than _ sticky 
bands are sometimes used to 
prevent insects from crawling 
up trees. 
Bands of cotton batting about 
6 to 8. inches wide are effective 
as long as the cotton remains 
fluffy. Wrap the band around 
the tree trunk and securely tie Fic. 176.—Method of ieee sence of cotton tree 
and. 
the bottom edge by means of 
stout twine (fig. 176). The upper edge should then be turned down over the 
string, forming a flange of loose cotton all around the tree (fig. 177). 
SPRAYING APPARATUS.® 
It is generally recognized by progressive fruit growers that the sprayer and 
its equipment are very important 
factors in the production of clean 
fruit. Fortunately, it is possible 
to obtain satisfactory outfits 
which, with proper care and at- 
tention, will give years of good 
service. Although the first cost 
of a well-made sprayer may ap- 
pear somewhat high, no fruit 
grower can afford to be without 
a reliable outfit that will meet his 
requirements during the critical 
spray periods. The purchase of 
an efficient sprayer is an invest- 
ment that will pay very liberal 
dividends. The capacity of an 
outfit should be larger’ than 
needed under ideal working con- 
ditions, since unfavorable and un- 
foreseen circumstances may in- 
Fic. 177.—Completed cotton tree band. terfere and make it necessary to 
have reserve power with which 
to complete the work in time. Large-scale operators should have an extra 
6’ For more complete information on spraying apparatus see United States Department 
of Agriculture Farmers’ Bulletin 908. 
