Eighth Report of the State Entomologist. 123 



and to destroying the nests or tents of the young caterpillars 

 when they are first to be seen in the forks of the branches. 

 Reports of the abundance of this caterpillar have been received 

 from Westchester, Dutchess, Chemung, and Oswego counties. 



The apple-tree aphis, Aphis mali Fabr., while not very 

 generally distributed, appeared in remarkable numbers in a few 

 localities — in Oswego, Monroe, and Essex counties, and else- 

 where. The season, however, was not propitious for its increase, 

 and the aggregate amount of injury caused by it was not large. 

 This insect may so easily be killed by kerosene emulsion spraying — 

 either while in the Qgg or at the time of its hatching, that losses 

 from it in the orchard deserve to be charged, in the ])rofit and 

 loss account, to the item of carelessness. 



The apple-leaf Bucculatrix, BucculatTix pomifoliella Clemens, 

 is extending its range, and is now to be found in nearly every 

 county of the State. In Oswego, Wayne, Orleans, Monroe, Niagara, 

 Livingston, and Ontario counties, its peculiar, white ribbed cocoons 

 are so numerous as to readily attract the eye. Yet, little com- 

 plaint has been made during the year of injury from it. Many 

 of the cocoons seen upon the twigs are those of former years, 

 and therefore tenantless. An effective parasitic attack has 

 fortunately been made upon it which is largely reducing its 

 numbers. Mr. Powell, Director of the Farmers' Institutes, 

 reports that at a recent institute held at Sodus, Wayne county, 

 on a small piece of apple-twig brought in, containing thirty of 

 the cocoons, twenty-five had been destroyed by the parasite, as 

 shown by a small hole eaten through one end of the cocoon. 



Another Tineid apple-tree depredator, ColeopJiora malivorella 

 Riley, rare to the State (see 1st Report Ins. ]^. Y., page 163), 

 was received in the early spring from Oswego and Wayne 

 counties. While not yet abundant in l^ew York, it would not be 

 a difficult task to prevent its becoming a serious pest. 



Although of slight economic importance, yet of considerable 

 interest from its rarity and limited extent, is the occurrence 

 during the autumn of the apple leaf-sewer, Phoxopteris miheculana 

 (Clemens), in an orchard at Palmyra, Wayne county, N. Y. 

 While in this orchard nearly one-half of the leaves have been 

 neatly folded over near the midrib and the two edges fastened 

 together to form the shelter for the hibernating larva, none of 

 the other orchards in the vicinity show the presence of the insect. 



