64 MARKET GARDEIs-ING. 



green, hellebore and slug shot, but as the insect enters 

 the most intricate folds of the leaves of cabbage, cauH- 

 flower and Brussels sprouts, the poisonous apj)lications 

 cannot be used. An effective remedy, on small garden 

 plots, is kerosene emulsion, made as follows : One part 

 sour milk, two j^arts kerosene, thoroughly mixed by 

 rapid agitation till the combination forms a creamy 

 liquid. To this add fourteen parts water, and apply by 

 an injector, or dash over the vines with a broom ; or 

 the emulsion may be made with : One quart soft soap, 

 one quart kerosene, two quarts water mixed by forcible 

 agitation, and diluted with sixteen quarts of water 

 applied forcibly with a syringe. 



Onion Fly. — The grub of this insect attacks the 

 bulbs of onions, the tops of which grow yellow and soon 

 die. There is no stopping its ravages, but prompt action 

 should be taken to destroy the larvae, as a preventive 

 against a like attack the succeeding year. All sickly 

 onions should be removed and burned, and from four to 

 eight bushels of salt applied to the acre. 



Turnip Fly. — The turnip fly, or flea beetle, is a 

 jumping insect about one-twentieth of an inch in diam- 

 eter, feeding on lettuce, radish, turnip and cabbage, as 

 soon as they break through the ground, often destroying 

 an entire crop, acres in extent, before the planter 

 knows the seed has sprouted. Equal parts of wood ashes 

 and land plaster dusted very thoroughly on the young 

 plants Avill generally drive them off. An application of 

 some efficiency is, one part of Paris green, mixed with 

 forty or fifty parts of land plaster or flour. Some of the 

 State legislatures have very admirably passed laws mak- 

 ing it obligatory on farmers to destroy the Canada this- 

 tle, and other weeds dangerous to the interests of agri- 

 culture. No less caution should be observed with 

 respect to certain insects, as, for instance, the potato 

 beetle, multiplying by hundreds of thousands on the 



