50 THE PRACTICAL GARDEN -BOOK 



The best remedy for the Cabbage worm is to kill the 

 first brood on the very young plants with Paris green. 

 After the plants begin to head, pyrethrum or salt water 

 may be used. On a small area, hand-picking may be 

 recommended. 



The maggot is the most serious Cabbage pest. After 

 studying the seventy odd remedies proposed, Slingerland 

 concludes that 6 are efficient and practicable : growing the 

 young plants in closely covered frames ; tarred paper cards 

 placed snugly about the base of the plants to keep the fly 

 away ; rubbing the eggs from the base of the plant ; hand- 

 picking of the maggots; treating the plants with emulsion 

 of carbolic acid; treating them with carbon bisulfide. The 

 insecticidal materials are injected or poured into the soil 

 about the base of the plant. 



Respecting these two insecticides, Slingerland remarks: 

 "Always use the crude carbolic acid, as it is much cheaper 

 than the purified and is nearly, if not quite, as effective. 

 It will probably be safer if used as an emulsion than if 

 simply diluted with water. We would advise that it be 

 made by the follow formula : 1 pound of hard soap or 1 

 quart of soft soap dissolved in 1 gallon of boiling water, into 

 which 1 pint of crude carbolic acid is then poured and the 

 whole mass agitated into an emulsion, which will remain in 

 this condition for a long time. In treating the plants, take 

 one part of this standard emulsion and dilute it with 30 

 equal parts of water; it probably can be used stronger with- 

 out injury to the plants. If the emulsion is cold and semi- 

 solid, use several parts of warm water at first. Begin the 

 treatment early, a day or two after the plants are up, or in 

 the case of Cabbages and Cauliflowers the next day after 

 they are set in the field, and repeat it once each week or 10 

 days until about May 20 in our state. While we have little 

 faith in the preventive effects of the early treatments, we do 

 believe that the emulsion will then kill many of the eggs 

 and recently hatched, maggots- If it could be applied, with 



