REMEDIES. 377 



be renewed every two or three days, as it is necessary to keep 

 it moist to prevent the females from passing over it. Such of 

 the females as will not go near the tar, and are prevented from 

 getting to tlie tree under the band, will deposit their eggs on 

 the band. The bands should be kept on the trees until the 

 apple trees begin to put forth their leaves, and should then be 

 taken off' and burned, ropes included. 



Note. — There are at least three s]3ecies of canker worms in 

 orchards at the present time, and as the natural history of all 

 the species as regards dates of emerging from the ground is 

 not known, it is the safest plan to put on the bands early in 

 the season. Should the caterpillars appear on the trees, spray 

 thoroughly with No. 64 ; at the same time it would be well to 

 experiment with Nos. 83 and 85. 



See Nos. 10, 89 and 103. Read No. 123 carefully. 



REMEDY NO. 23. 



Put around the tree, about two feet from the ground, a band 

 of cloth, such as muslin butter cloth ; cover with tallow after 

 it is placed on the tree, and put some lard over the tallow ; the 

 lard will keep soft and prevent caterpillars from passing over 

 it. When the caterpillars are swept off the tree they will creep 

 up the trunk again until they reach the greased band ; they 

 gather below the bands in large numbers, and can then be 

 destroyed by the use of clubs, etc. 



See Chapter XXXIII. Read Remedies No. 35 and 124 care- 

 fully. 



Note. — The caterpillars arc swept off the branches with 

 brooms. 



REMEDY NO. 24. 



A large number of varieties of deciduous fruit trees, vines 

 and plants are liable to be infested by the cateriiillars of various 

 species of moths, commonly known as "leaf-rollers." An 

 excellent remedy for preventing the spread of these pests is to 

 pick off" the rolled leaves as soon as noticed, and destroy them 

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