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THE CONNECTICUT POMOLOGICAL SOCIETY. 



commenced to work so as to cause the leaves to curl, you 

 can control it by spraying" with any of the substances 

 which are usually used against plant lice, such as whale 

 oil soap, in the proportion of a pound to five gallons of 

 water, kerosene emulsion, and tobacco mixture, — any of 

 these remedies will kill them. In Colorado they have had 

 some success with spraying with the lime and sulphur 

 mixture in winter. That has been tried in New York state 

 without success. The matter of killing the eggs by a 

 winter application of the spray has not been tried out in 

 the east. Applications made in the east do not seem to 

 have been entirely successful, but there is promise that 

 this will be effectively remedied before long. If you wish 

 to spray, spray when the eggs hatch. Later in the sea- 

 son it is difficult to spray for them. From some experi- 

 ments made in Delaware, particularly in an orchard of 

 many trees, it was found that they could be readily con- 

 trolled by a fumigation process, by placing a form, such 

 as you see at the left here, covering the tree, and then 

 using tobacco powder underneath. By fumigating with 

 the tobacco powder for about twenty minutes, you can 

 usually kill out the aphis entirely, but you usually find 

 that the aphis will attack one or two trees, and that they 

 then spread, so it is difficult to know just where to locate 

 them. If you are thorough and clear them out in these 

 few trees where they are found, usually you will have but 

 little trouble with the few that may escape. I believe it is 

 entirely practical to fumigate small trees, or in small or- 

 chards containing comparatively few trees. This plan 

 has been used very successfully in a number of instances 

 that I have known of. 



The next pest, as you see upon the screen, that we 

 have to fight in the spring, ij the tent caterpillar. This 

 view shows the eggs found right near the tip of the limb. 

 Of course, it is an easy matter to prune these off while you 

 are pruning in the winter and thus destroy the insect. 



