Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . leaf, on the tips of which arejHoduced the spores. The injured leaves turn yellowishor brown in spots, and if the attack is severe, are finallydestroved. The destruction of all refuse leaves that may havebeen infested, and spraying with fungicides, are the bestremedial measures. A rather full account of the fungusmay be found in the eighth report of the MassachusettsExperiment Station (pp. 210-212; 1890), and in Amer-ican Gardening, April, 1803. The Bacteri
Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . leaf, on the tips of which arejHoduced the spores. The injured leaves turn yellowishor brown in spots, and if the attack is severe, are finallydestroved. The destruction of all refuse leaves that may havebeen infested, and spraying with fungicides, are the bestremedial measures. A rather full account of the fungusmay be found in the eighth report of the MassachusettsExperiment Station (pp. 210-212; 1890), and in Amer-ican Gardening, April, 1803. The Bacterial Blight This disease has been esj^ecially troublesome in theSouthern States, where it has done much damage to themelon crop. It is also destructive in the truck-growing 160 THE BACTEEIAL BLIGHT 161 regions of the North, and it is possible that it is due tothe same germs as the bacterial blights and rots of vari-ous otiier vegetables, such as celery, potato, tomato, etc.*^Soon after the plants are up, and usually by the timethey have reached out a foot or so u^^on the ground, thetrouble begins. The stem may become moist, in a man-. no. 70. CUCUMBER LEAF AFFECTED WITH MILDEW. ner to suggest what is termed ^water core in may be close to the base of the plant, or midwaybetween that point and the tip of the vine. Sometimesone leaf-stalk decays first, and the disease spreads fromit to other parts. Occasionally the free young end meltsaway with the trouble. When tissue that is freshly dis-eased is examined, it is found swarming with bacteria,11 162 FUXGI AXD FUXGICIDES and no other cause for the disorganization is to be unfrequently the leaves become spotted—that is,certain areas decay and fall away. If a leaf freshlyaffected is held toward the light, the diseased placesmay be easily detected, by the peculiar discoloration.
Size: 1624px × 1539px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
