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Southern corn leaf blight thrives in the southern United States because unlike NCLB it requires warm weather to develop. During favorable conditions the disease has been documented ruining a whole crop within days when left untreated. [64] Treatment is available with the use of chlorothalonil, mancozeb, and maneb but even this is limited.
Tim Becker, horticulture director for the Theodore Payne Foundation, said he tested the soil in his West Adams yard a few years ago and discovered it had lead concentrations of around 65 parts per ...
Sclerotinia sclerotiorum is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. S. sclerotiorum can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight.
Bordeaux mixture has been found to be harmful to fish, livestock and—due to potential buildup of copper in the soil—earthworms. [1] [2] The chemical was in use as a blight preventive in the potato country of northern Maine by 1921. [5] It started to be used by the United Fruit Company throughout Latin America around 1922.
Soil solarization is the third approach for soil disinfestation; the two other main approaches, soil steaming and fumigation; were developed at the end of the 19th century. The idea of solarization was based on observations by extension workers and farmers in the hot Jordan Valley , who noticed the intensive heating of the polyethylene-mulched ...
Milk has proven effective in treating powdery mildew of summer squash, [15] pumpkins, [14] grapes, [16] and roses. [16] The exact mechanism of action is unknown, but one known effect is that ferroglobulin, a protein in whey, produces oxygen radicals when exposed to sunlight, and contact with these radicals is damaging to the fungus. [16]
Alternaria solani is a fungal pathogen that produces a disease in tomato and potato plants called early blight. The pathogen produces distinctive "bullseye" patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato. Despite the name "early", foliar symptoms usually occur on older leaves. [3]
Phomopsis blight of juniper is a foliar disease discovered in 1917 [1] caused by the fungal pathogen Phomopsis juniperovora. The fungus infects new growth of juniper trees or shrubs, i.e. the seedlings or young shoots of mature trees.