23S 



Jlississippi Valleij Horticultural Society. 



These larvse appear upon the leaves of the plant in July and August, and 

 may he easily exterminated by the methods advised for 'the common straw- 

 berry leaf-roller. 



Strawberry Leaf-Stem Gall. 



' Concerning this species, all the information which I have is contained in 

 the following extract from S.iunders' " Insects Injurious to Fruit " : 



" This is an elongated gall, an inch or more in length, found on the stalk 

 of the leaf of the strawberry near its base, produced by an undetermined 

 species of gall fly. Its surface is irregular and its color red, while the in- 

 ternal structure is spongy. If these galls are opened about the middle of 

 July, there will be found in each, about the center, a small, milk-white, foot- 

 less grub, semi-transparent, with a smooth, glossy skin, a wrinkled surface* 

 and a few fine short hairs. Its jaws are pale brown, and its length at this 

 period is about one sixteenth of an inch, the body tapering a little towards 

 each extremity. This insect doubtless changes to a chrysalis within the 

 gall, from which the flies escape later in the season, or early the following 

 spring. 



The Maple Bark- Louse {Pulvinaria innumerabilis, Rathvon). 

 Order Hemiptera. Family CocciD.i:. 

 As a matter of interest, but of little apparent significance, I may mention 

 the fact that the common soft maple bark-louse has been frequently found 

 abundant upon'_leaves of strawberries growing in the vicinity of maple trees, 

 under conditions to show that the louse can live and develop upon the straw- 

 berry. 



Via- 1. The Mapi.K Tkke Bakk-Lousk (I'alvinm-ia inuiinnntbilis, Hullivon): fcmnlo in nn- 

 tiiiniiitl coiiditic)!! ; a. ((pcciini'iis lUtached to twig; 6. <i<)i-sal view, inagiiilieil ; c. ventral view. 



.Vnother scale insect of the maple, Ijelonging to the genus Aleiirodes, but 

 of a species probably undescribed, I jiave likewise seen, less commonly, upon 

 strawberry leaves. In England an Aleurodes is reported as often extremely 

 abundant ui)ori^lhis plant, frequently almost covering the under sides of the 

 leaves. 



