Parsley, Pea. 325 



and a half long, the ground color being pale green, but the 

 sides of the body are marked with a series of yellow and black 

 markings. When disturbed it projects two yellow horns from 

 the back of the head ; these emit a disagreeable odor, and 

 doubtless serve as organs of defense. It soon seeks a sheltered 

 spot, and there spins its cocoon. In about two weeks the adult 

 insect again appears. Eggs are laid, and the larvae become full 

 grown and pupate late in September or early in October. The 

 winter is passed in this condition, the mature insect appearing 

 the following spring. 



Treatment. These insects are rarely present in sufficient 

 numbers to cause much injury. If their destruction is at- 

 tempted, the arsenites will be found very efficient, but they 

 should be applied only to those plants whose foliage is not 

 used. Hellebore, or pyrethrum, is safer and almost as effective, 

 and these materials should be applied to celery, parsley, and 

 other plants whose treated parts are used as food. 



PARSNIP. 



INSECT ENEMIES. 



Parsley-worm. See under PARSLEY. 



Web-worm (Depressaria heracliana, De Geer.) Description. 

 The moths probably hibernate during the winter, laying their 

 eggs early in spring. The larvae appear in June. They feed 

 upon the green parts of the parsnip, and protect themselves by 

 means of a web. The flower cluster is particularly affected. 

 This insect is comparatively rare. 



Treatment. One or two applications of an arsenite should be 

 sufficient to protect the plants, since the insect appears to have 

 out one brood each year. The treatments should be made as 

 soon as the larvae are seen in the spring. The insects pupate in 

 the stems of the parsnip, and the destruction of these stems 

 late in July would materially reduce the number of the insects. 



PEA. 



FUNGOUS DISEASES. 



Mildew (Erysiphe Martii, Lev.). Description. This disease 

 generally appears late in summer, or during the autumn months. 



