. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. DWARFED BY APPLE SCAB A closely related fungus causes the Pear Scab, which is often destructive to certain varieties of pears. Its life his- tory and control are practically the same as the Apple Scab. _ .. _ Bitter Rot of Apple This disease causes losses of millions of dollars in the United States almost every year. It is generally noticed upon the fruit, especially as it approaches full size. Small brownish spots may be seen at first; these gradually en- large and common
. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. DWARFED BY APPLE SCAB A closely related fungus causes the Pear Scab, which is often destructive to certain varieties of pears. Its life his- tory and control are practically the same as the Apple Scab. _ .. _ Bitter Rot of Apple This disease causes losses of millions of dollars in the United States almost every year. It is generally noticed upon the fruit, especially as it approaches full size. Small brownish spots may be seen at first; these gradually en- large and commonly spread over much of the apple, caus- ing it to fall. Many of the smaller fruits, however, re- main upon the tree, shriveling to a mummified condi- tion, in which they may hang to the twigs until the next spring. After the mycelium of the fungus has been growing in the fruit tissues for a time, it develops upon the surface characteristic blackish pustules in which great numbers of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Weed, Clarence Moores, 1864-1947. Boston ; New York : D. C. Heath & Co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbenefic, bookyear1910
