146 THE CONNECTICUT POMOLOGICAL SOCIETY. 



curled, turned yellow, and dropped late in June. The fruit 

 set fairly well, but failed to grow and was often gnarled and 

 ill-shaped. We have made observations for two seasons on 

 this insect, and now know that it does cause this damage to 

 the fruit. It is suspected that there may be some connec- 

 tion between the attacks of aphids and the well-known Bald- 

 win Spot" which develops later in the season. Though we 

 have considerable evidence pointing in this direction, the 

 proof is not yet complete. We had no difficulty in killing the 

 aphids with kerosene emulsion made after the usual formula, 

 when the liquid was brought into direct contact with the 

 aphids, as is the case where a small branch is dipped into the 

 emulsion. Of course, it is difficult to hit them with any 

 spray after the leaves are curled, especially on large trees. 

 Manys tests have been made with various sprays to kill the 

 eggs, which are deposited on the twigs in the fall, and may 

 be found around the buds. The oil mixtures are not very 

 satisfactory for this purpose, and Professor Gillette states 

 that the best substance which he has found for this purpose 

 is the lime and sulphur mixture. As the eggs of the rosy 

 apple aphis hatch early, just before the buds break open, 

 this would seem to be the best time to make the application. 

 The Green Apple Aphis, which is also known scientifi- 

 cally by more than one name (Aphis pomi DeG. and A. 

 mali Fabr.), was also present in many orchards, and checked 

 the growth, especially on young trees and nursery stock. 

 This aphis is green in color and is usually found on the un- 

 der sides of the leaves or on the soft stems of the new 

 growth at the ends of the branches. The rosy apple aphis 

 can be distinguished by its pink or purple color, and works 

 more especially on and around the fruit clusters on the in- 

 side of the tree. The green apple aphis remains throughout 

 the season on the apple tree, while the rosy apple aphis mi- 

 grates to some other host plant about the middle of July, 

 though what plant it lives upon it not known. Late in No- 

 vember it returns to the apple and lays eggs, which hatch the 

 following spring. These eggs are smaller, less abundant and 



