108 STATE POMOLOGICAL SOCIETY. 



prompth' destro}' the fruit as it falls from them. If such trees 

 could be inclosed, and sheep or pigs pastured under them, the suc- 

 cess of the trap would be assured. 



The Apple Maggot can be readily distinguished from the larva of 

 the Codlin-moth by the absence of feet and the fact that it infests 

 the pulp rather than the vicinity of the core. But there are other 

 maggots which are associated with this species, and with the larva 

 of the Codlin-moth also, which are not readily distinguished from 

 the true Apple Maggot. These other species pertain to the genus 

 Drosopldla^ and feed upon decaying fruit. They cannot be con- 

 sidered, therefore, under ordinar3' circumstances, as noxious insects 

 in an orchard. Two species of this genus are described in follow- 

 ing articles, under the name of Pomace Flies." 



To the foregoing Mr. Harlow adds : This insect seems to be 

 increasing to such an extent in our own State within a few years as 

 to cause serious alarm among growers of fruit. In my own expe- 

 rience, thus far, its ravages have been mostly confined to eai'ly 

 ripening autumn apples, particularlv mellow, sweet ones, such as 

 the Golden and Hightop Sweet ; but I have also found them in the 

 Danvers Winter Sweet as well as some acid varieties, as the Graven- 

 stein, Jenneting and Porter. Fortunate would it be were their 

 depredations confined to early mellow apples, as some have sup- 

 posed ; but although preferring them, I find my own experience to 

 the contrary- confirmed by other cultivators of fruit. * * 



There are several points of interest concerning this insect on 

 which more light is needed, for successful warfare. The first is the 

 identification of the egg and determining the exact time and manner 

 of its deposit on the apple. A second one is, does the larva, like 

 that of the Codlin-moth, pass from one fruit to another on the tree? 

 Third ; can the parent fl}' be caught in any wa}', by bottles or other- 

 wise, more successfully than its ally, the Codlin-moth? Fourth; 

 can it be driven from the tree or killed at the time of depositing its 

 eggs, by spraying with any liquid which will neither taint or poison 

 the apple, considering it does not infest the apple till nearly ripe? 

 Fifth and lastly ; is there any parasite which b^- being protected and 

 cultivated can assist us in its extermination? 



While trying to inform ourselves on these and similar points, let 

 lis lose no time in availing ourselves of the knowledge already 

 gained. 



