17(3 GARDEN FOES. 



extremity. It is occasionally found on the roots of the 

 Jerusalem artichoke. 



liEMEDiES. — If the crop be infested with these lice do not 

 plant any more tubers on the isame plot for a year or two; 

 meanwhile dressing the land with one of the soil fumi- 

 gants. 



St. Mark's Fly (Bibio Marci).— The latter is a dip- 

 terous, or two-winged, fly, the actual size of which is 

 shown by the cross lines at the base of the illustration. 

 It is popularly known among entomologists as the^ St. 

 Mark's Fly (Bibio Marci), and has not hitherto beetf^-^ - 

 garded as a serious enemy to crops. The flies lay /• eir 

 eggs on dung heaps, and from these hatch the hairy a vte 

 of the size shown in illustration. When the manu-e is 

 spread on the land the larvae attack the .x:.';^.!^'' j^f^^l ants, 

 somewhat like those of the Crane Eies. 



Kemedies. — Manure found to contan these grubs should 

 be spread, out thinly and sprinkled with salt or slaked 

 lime before adding it to the garden. 



Slu^s and Snails — Both do a reat deal of harm in 

 the vegetable garden, especially awng seedling endive, 

 lettuce, and peas. 



Kemedies. — Frequent dustings of me and soot will do 

 much to protect the seedlings, butJndoubtedly the best 

 plan is to place heaps of bran a fe\feet apart overnight 

 near the seedlings. The snails and lugs will quickly And 

 these, and may be found congregati tliereon next morn- 

 ing. The slugs and snails should len be collected and 

 thrown into a strong brine pickle, irow of sawdust along 

 each side of a row of peas will pvent slugs reaching 

 the latter. Sprinkling the surface * the soil with a solu- 

 tion of Cliffs Liquid Insecticide, oJigging in one of the 

 soil fumigants, will keep slugs andaails .at bay. 



Thrips. — There are few insectsiore destructive than 

 these. The one which attacks cucumber plants is 

 Heliothrips luvmorrhoidalis, a da - brown four - winged 



