INSECTS INJURIOUS TO CELERY QI 



Grasshoppers. During the early growth of the 

 celery, the plants are frequently attacked by grass- 

 hoppers. These insects are especially injurious 

 when the celery is planted near meadows, as they 

 are liable to attack the celery plants after the hay 

 has been harvested. Where no fowls or live stock 

 can possibly be injured, the grasshoppers may be 

 poisoned by means of wheat bran, to which there 



FIG. 37 CELERY LEAF-TVER (Phlyctaenla ferrugalis) 



a, b, adult moth; c, larva; d, pupa; e, leaf drawn together by larva 

 (Redrawn from Farmers' Bulletin No. 148) 



has been added molasses and water with sufficient 

 Paris green to give the mixture a slightly green 

 color. 



The Celery Leaf-tyer (Phlyctaenia 'ferrugalis) . 

 This insect frequently becomes troublesome as it 

 not only destroys the leaves by eating them, but 

 also by spinning a web and tying them together. 

 The leaf-tyer is well distributed and may at any 

 time appear in sufficient numbers to be a pest in the 



