LEADING VEGETABLE CROPS 21 5 



thoroughly washed and packed in ventilated barrels 

 or half barrels with the roots toward the outside. 

 The radish seems to be somewhat more exacting 

 under greenhouse and frame conditions than in the 

 open. More dif&culty will be experienced with the 

 temperature running too high than too low. From 

 45 to 50° at night and not over 65° during the day 

 should be maintained if possible. Especial atten- 

 tion should be given to ventilation and a sufficient 

 supply of moisture. Radishes grown under glass 

 do not usually find a ready sale before the holiday 

 season. Planting should, therefore, be made from 

 the 1st to the 15th of November. 



The Globe or button types are preferable for 

 forcing under glass, on account of their quick ma- 

 turity and their small tops, which permit close 

 planting. 



Insects and diseases are not particularly trouble- 

 some. The most annoying insect is the cabbage 

 root maggot, which, in given localities, attacks the 

 roots, rendering the crop unsalable by the presence 

 of the dark brown spots or streaks through the root. 

 Little can be done to control this pest, except to 

 rotate the crops. The turnip-shaped radishes may 

 be treated with lime water with some degree of suc- 

 cess, but with longer radishes it is impossible to 

 get the material deep enough into the soil without 

 too much trouble and expense. 



The flea beetle and plant lice sometimes attack 

 the radish. The latter are especially troublesome 

 under greenhouse conditions. Tobacco dust is an 

 effective remedy. Radishes are particularly tender 

 to tobacco smoke, and dusting will be found a safer 

 method of application. 



