Mt. Pleasant Pyramid | 1924-08-08 | Page 6 | Different Sprays Used to Protect Apple Crop

Different Sprays Used i to Trotect Apple Crop Varieties of apples differ greatly In t their degree of susceptibility to fungi. Immunity to one fungus, however, does not Imply Immunity to another, i For example, one variety may be very resistant to scab and susceptible to blotch, and another may be resistant j to blotch and susceptible to scab. The spraying program can often be adjust- j ed to advantage to meet these differ- I ences. For example, liellolous, which j Is very susceptible to apple scab, should receive all sprays designated as Important Impor-tant In the control of Ibis fungus, but since IVllclous Is very resistant to blotch, the sprays designed primarily for blotch may he omitted While mill' varieties vary In susceptibility to Insect Injury, these dlfierences are not great enough to warrant changes lu the spray schedule.