Show unthrifty seed Is never recommended money and labor Is wasted without proper start poor seed will not produce a good crop or potatoes no matter bow much labor and money are expended on fertilizer spraying and cultivation according to K H fernow of the new york state college of agriculture good seed must be relatively free from virus diseases true to variety and in good condition an inspection of seed shows whether it la badly sprouted shriveled or affected with black heart or freez ing injury but only by examination of the growing plants can freedom from lrus diseases be determined to obtain healthy seed maintain a seed plot in which control methods against virus diseases are used or else purchase seed from some one who uses control methods some growers buy enough good seed each year to plant an increase plot from they obtain seed for their main planting the following year such a practice Is satisfactory only if the good seed purchased Is planted at a distance from potatoes which have a relatively large amount of degeneration and if conditions are not too favorable for the spread of virus diseases within the plot at present there Is no way to know absolutely whether seed Is tree from virus diseases but the use of certified seed usually results in healthier stock the fields from which such seed comes have been inspected by the state college and have been found to contain only a small amount of virus diseases |