Plant species

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infected plants host:ohioline.osu.edu

Listing 1 - 10 from 64 for infected plants

Growing Geraniums, HYG-1217-92
... seasons. Occasionally, geranium plants or single leaves will wilt for no apparent reason. This should alert the homeowner to a serious problem known as bacterial blight. Infected plants will more readily display this symptom under high (70 to 80 degrees F) temperatures. No sprays are available and removal of the plant from the site should be done immediately. Plants ...
ohioline.osu.edu

Diseases of Ground Cover Plants, HYG-3064-96
... . Select plants that are growing well and are free of nutritional deficiencies. If any disease is noted in the plants, do not purchase them. For established beds, remove infected plants and prune out diseased parts of plants. Discard or burn infected material. Thin planting to remove ...
ohioline.osu.edu

Orange Rust of Brambles, HYG-3010-94
... infected young canes appear to have outgrown the fungus and may appear normal. At this point, infected plants are often difficult to identify. In reality, the plants are systemically infected, and in the following years, infected ...
ohioline.osu.edu

Verticillium Wilt of Strawberry, HYG-3012-95
... do tend to be stunted and may wilt and curl up along the midvein. Severely infected plants may appear stunted and flattened, with small yellowish leaves. Brownish to blueish-black streaks or ... water uptake by the plant; thus, the plants wilt and wither. As fungal colonies get older they produce microsclerotia in infected host tissue. As these infected tissues die and return to the soil ...
ohioline.osu.edu

Red Stele Root Rot of Strawberry, HYG-3014-95
... wet spring. Symptoms When plants start wilting and dying in the lower portions of the strawberry planting, the cause is very likely to be red stele. Infected plants are stunted, lose their shiny ... diseased plants wilt rapidly and die. Diseased plants have very few new roots, when compared with the roots of healthy plants that have thick and bushy roots with many secondary feeding roots. Infected ...
ohioline.osu.edu

Bacterial Crown Gall of Fruit Crops HYG-3301
... or tumors on the roots, crowns, trunks and canes of infected plants. These galls interfere with water and nutrient flow in the plants. Seriously infected plants may become weakened, stunted and unproductive. Symptoms The ... may remain for the life of the plant. The tops of infected plants may appear normal. If infection is severe, plants may be stunted, produce dry, poorly-developed fruit, or show ...
ohioline.osu.edu

Phytophthora Root Rot of Raspberry, HYG-3207-98
... susceptible cultivars where conditions favor its development. Infected plants become weak and stunted and are particularly susceptible to winter injury; seriously infected plants commonly collapse and die. (Figures 1 and ... system of infected plants to diagnose the disease. Suspect plants should be dug up and the epidermis (outer surface) scraped off the main roots and crown. On healthy plants, the ...
ohioline.osu.edu

Maintaining Healthy Rhododendrons and Azaleas in the Landscape, HYG-3043-96
... occurs, plants may die quickly. Figure 4. This plant is wilting because it is infected with a fungal root and crown rot. Figure 5. Brown discoloration at the crown in rhododendron caused by fungal crown rot. Whereas infected plants cannot be cured, root rot may be tolerated by the plant if improvements in soil drainage and aeration are made as soon as possible. Young plants ...
ohioline.osu.edu

Control of Phytophthora and Other Major Diseases of Ericaceous Plants, HYG-3073-99
... (Fig.1). Three different species of Phytophthora have been isolated from the same infected rhododendron plant, demonstrating rhododendron's high level of susceptibility to this root-rot disease ... field. The Life Cycle of Phytophthora Diseases Phytophthora species associated with woody plants generally overwinter in infected plants or in decaying infested plant debris in the soil or container medium ...
ohioline.osu.edu

Powdery Mildews on Ornamental Plants, HYG-3047-96
... infected plant may become extremely unsightly. On roses, uncontrolled powdery mildew will prevent normal flowering on highly susceptible cultivars. Hosts Powdery mildew fungi infect almost all ornamental plants. They are commonly seen only on those plants more naturally susceptible to the disease. Susceptible woody plants include some deciduous azaleas, ...
ohioline.osu.edu