100 VEGETABLE GARDENING. 



ant. They generally winter over in the egg state. The summer 

 broods are often brought forth alive without the intervention 

 of the egg state. Kerosene emulsion and tobacco water are 

 the usual remedies, but hot water and pyrethrum will also de- 

 stroy them. Leaf lice are eaten by the larvae of lady bugs and 

 they are also subject to attacks of parasites. When the lice 

 are coated with a meal-like covering that sheds water and pre- 

 vents their being wet by insectides, they should first be sprayed 

 with strong soap suds to remove the mealy covering and then 

 the insecticide may be applied successfully. 



Cabbage Lice or Aphides (Aphis brassicae). — These are 

 light brown insects covered with a floury substance. They at- 

 tack turnips, cauliflower, rutabagas and similar plants, as well 

 as the cabbage. They work generally on the lower side of the 

 leaves where they collect most abundantly. They are most 

 numerous in dry seasons. The remedies for them are those given 

 under the general head of leaf lice but in addition to those it 

 is a good plan to burn or compost all the old cabbage leaves 

 and stumps, since the eggs winter over attached to them. 



Sweet Corn Moth or Tassel Worm (Heliophila unipucta.) — 

 This is the boll-worm of the south. It eats into the green grain 

 of the corn. But is seldom very troublesome at the north. Dr. 

 Lugger thinks that it does not winter over in the extreme north- 

 ern states, but that the moths come from the south each year. 

 The only remedy is hand picking. It is doubtful if they will 

 ever become very injurious in the northern states, since they do 

 not begin their work there until late in the season. 



Parsley Worm or Celery Caterpillar (Papilio asterias.) — This 

 worm eats the foliage of celery, carrot, parsley and allied plants, 

 but is not very often injurious. The mature insect is a beautiful 

 large black butterfly having yellow and blue spots on its wings. 

 The eggs are laid on the foliage and hatch into small caterpil- 

 lars less than one-tenth of an inch long, which when full grown 

 are one and a half inches long. It has bright yellow mark- 

 ings. The remedy is to hand pick the worms, which are seldom 

 abundant 



