Diseases of fruits and nuts Diseases of fruits and nuts diseasesoffruits120smit Year: 1941 Diseases of Fruits and Nuts 55 where this disease is present, trees die in gradually increasing areas and show the characteristic fungus, Arwillaria ivellea (p. 144), in the roots. The cherry is moderately susceptible, being more resistant than peach or almond and about equal to the apple and olive. The mazzard cherry root appears to be more resistant than the mahaleb or morello. There is no way of growing cherries with safety in infested soil. Treat- Fig. 28.—Cherry leaf spot. ment with carbon disu
Diseases of fruits and nuts Diseases of fruits and nuts diseasesoffruits120smit Year: 1941 Diseases of Fruits and Nuts 55 where this disease is present, trees die in gradually increasing areas and show the characteristic fungus, Arwillaria ivellea (p. 144), in the roots. The cherry is moderately susceptible, being more resistant than peach or almond and about equal to the apple and olive. The mazzard cherry root appears to be more resistant than the mahaleb or morello. There is no way of growing cherries with safety in infested soil. Treat- Fig. 28.—Cherry leaf spot. ment with carbon disulfide (p. 149) is the only possibility except to grow some nonsusceptible tree or crop. Sour Sap.—Young cherry trees often fail to start in spring, and the dead, brown, inner bark has a fermented odor. This is not due to any one cause. Bacterial canker is often responsible, the trunk or limbs being girdled by cankers. Phytophthora canker may also be found at the crowns of the trees, as in almond and in citrus gummosis. Excessive water or poor drainage contributes to the trouble.
Size: 1356px × 1475px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
