If harmful bacteria exist in near-by trees

If harmful bacteria exist in near-by trees

If harmful bacteria exist in near-by trees

The bacteria causing fire-blight are readily carried from flower to flower and from twig to twig by insects; therefore to keep these and other bacteria away from your trees you must see to it that all the trees in the neighborhood of your orchard are kept free from mischievous enemies. If harmful bacteria exist in near-by trees, insects will carry them to your orchard. You must therefore watch all the relatives of the pear; namely, the apple, hawthorn, crab, quince, and mountain ash, for any of these trees may harbor the germs.

Fig. 119. A Resistant Variety of Sea Island Cotton