868 FRUIT INSECTS 



References 



Riley, 9th Rept. Ins. Mo., pp. 27-29. 1877. 

 Forbes, 13th Rept. State Ent. 111., pp. 71-76. 1884. 

 Forbes, 14th Rept. State Ent. 111., pp. 77-78. 1885. 

 Iowa Agr. Exp. Sta. Bull. 18, pp. 512-514. 1892. 

 Ohio Agr. Exp. Sta. Bull. 68, pp. 33-35. 1896. 

 Mo. Agr. Exp. Sta. Bull. 54, pp. 192-202, 1901. 



The Green Strawberry Slug 

 E7npria ignota Norton 



This species is closely related to the one last treated, but 

 differs from it somewhat in the details of its life history. The 

 injury inflicted is, however, practically the same. It has been 

 reported as troublesome in Iowa, Illinois and Indiana. 



The flies appear in the spring somewhat earlier than the 

 preceding species and deposit their eggs singly just beneath the 

 lower epidermis of the leaf, thereby causing small light-colored 

 blisters. Three or four eggs are laid in a leaf. As soon as 

 hatched the young larvae begin to eat small holes in the leaves, 

 and if abundant, may strip the plants of their foliage, leaving 

 the fruit stunted and unable to ripen properly. They molt 

 four times, becoming full-grown in May or early June. They 

 are then over one half inch in length, deep green in color with 

 obscure blackish dorsal and lateral stripes ; the head is uniform 

 yellowish-brown without the distinctive blackish spots of 

 E. maculata described above. When full-grown the larva 

 enters the ground an inch or so and forms a frail earthen cocoon 

 lined with silk, within which the insect remains in a shortened 

 and thickened condition till the following spring, when the 

 transformation to the pupa and adult takes place. 



Treatment. 



The green strawberry slug may be controlled by the measures 

 suggested for the species last treated. 



