340 AMERICAN POMOLOGY. 



from the trees, and either be boiled, or at once fed to 

 swine. Hogs and sheep, kept in the orchard, will general- 

 ly consume the fruit as fast as they fall to the ground ; 

 and this is the simplest and cheapest method of destroying 

 the worms. 



Cliff toe kilns pomctellus, (Harris), is commonly called 

 the Palmer-worm. It feeds upon the leaves of our or- 

 chard and forest trees in June. Sometimes it appears in im- 

 mense numbers, and, coming after the period for the pro- 

 duction of new leaves, great damage is done to the trees ; 

 old trees, and limbs of younger ones, are sometimes killed. 

 There have been two celebrated invasions of this insect in 

 the Eastern States, those of 1791 and of 1853.* 



GRAPE VINE FEEDERS. 



Grape vines are subject to the attacks of many lepidop- 

 torous insects. Dr. Harris gives the history of seven 

 American larvae, mostly of large moths, which feed upon 

 grape leaves. 



Pteropkorus periscelidactylus, or the Gartered Grape 

 vine Plume, is a pale green worm, half an inch long, which 

 hides itself in a hollow ball of leaves, fastened together 

 with silken threads. It is described at length by Dr. 

 Fitch, in the New York Agricultural Transactions. 



OkiS myrOHj ( Choerocampa pampinatrix, of Harris), 

 called also the Vine Dresser, is somewhat troublesome in 

 the vineyards, as it eats the leaves, and cuts off the bunches 



* For interesting details vide Fitch's Bept., p. 221. 



