15. 
them, for they feed entirely upon the newly developing 
tissues, 
The arsenate of lead acts ae a poison for all leaf 
and bud eating insects, and also increases the fungicidal 
value of the epray, as shown recently in Cornell Bulletin 
290. Hence, the evident value of using this poison in 
every spray that we apply. 
Second Treatment. Since the neglected orchard is 
usually so infested with pests, both fungi and insects, 
it is best to apply this spray just when the flower buds 
appear red, before they open. In clean commercial or- 
chards, this application may not be neceasary, in sections 
where there is no trouble with scab. This, and all suc- 
ceeding sprays, while the leaves are on the trees, must 
be more dilute or the foliage will be burned. It is 
best to use about 40 parts of water to each part of the 
commerétal lime-sulphur. The arsenate of lead is always 
added to hold in check the hords of caterpillars and 
other chewing insects. 
Third Treatment, This may be called the first 
codlins moth spray. It should be applied at the same 
strength ae the preceding and within ten days after the 
petals fall. The application should be with considerable 
force, the idea being to get the poison into the flower 
end of each developing fruit before the calyx lobes close. 
The importance of this treatment can not be over estimated 
