22 Teuck Geowing in the South. 



Machines that are used in France which pump bisulphide 

 of carbon through the soil, but this method of eradication 

 is necessarily very expensive, and hardly worth consider- 

 ing. Here the ounce of prevention attains its highest value. 

 Perhaps the most universal means of distributing this 

 great pest is through the agency of plants from seed beds' 

 which are infested. Plants coming from an infested 

 seed bed should never be used, or preferably no ground 

 that contains the smallest quantity of root knot should 

 be used for seed beds. New ground should always be 

 used, but if it is adjacent to infested fields, care should bo 

 taken that the new ground contains no weeds, as this in- 

 sect will go from old fields to weeds that grow on virgin 

 soil. Therefore before planting your seed bed, examine 

 the weeds, if any are growing, and see that you have no 

 root knot. Very few garden vegetables are immune to 

 this insect, some however have great power of resistance, 

 but never produce maximum crops where it is present. 

 Sweet peppers and carrots are the only vegetables that I 

 know to be entirely immune. Cabbage, cauliflower, let- 

 tuce, squash, eggplant, tomatoes, and beets have great 

 power of resistance, and will produce good crops where 

 the land is infested very badly, provided they are kept in 

 a thrifty condition. Okra, cukes, cantaloupes and water- 

 melons can scarcely be grown at all on infested land. 



PLANT DISEASES. 



Plant disease is nearly always caused by continuous 

 cropping or unfavorable conditions. The gardener 

 should always aim to exercise judicious rotation, keep the 



