fungus cercospora host:plantpathology.tamu.edu

Listing 1 - 10 from 27 for fungus cercospora

Vegetable Crops Pt1
... not entering fields when plants are wet, and (4) spraying with fungicides. Cercospora Leaf Spot (fungi - Cercospora spp.): Lower foliage becomes marked by irregular tan spots one-eighth ... fungi, and results from mechanically damaged seed. BEET (TABLE) Beta vulgaris Cercospora Leaf Spot (fungus - Cercospora beticola): Cercospora leaf spot causes small, brown lesions with reddish-purple borders. As ...
plantpathology.tamu.edu

Vegetable Crops pt 2
... with little economic loss. See Cotton Root Rot: CELERY Apium graveolens var. dulce Cercospora Blight (fungus - Cercospora apii): Symptoms begin as small, yellowish spots on both sides of the foliage. Spots enlarge quickly changing from yellow to ash-gray with the tissue drying in affected areas. The fungus ...
plantpathology.tamu.edu

Vegetable Crops - pt 4
... been treated with a fungicide and plant on a well-drained bed. Leaf Spot (fungus - Cercospora capsici): This disease rarely occurs in Texas. Spots on leaves are large and oval ... ; 2) cultivate fields prior to planting to destroy all volunteer plants. Cercospora Leafspot (fungi - Cercospora cruciferarum and C. atrogrisea): The fungus attacks the cotyledons, leaves, and petioles of the host plant. ...
plantpathology.tamu.edu

Fruit5
... . Peach Mosaic (virus): See Peach. STRAWBERRY Fragaria chiloensis and Fragaria ananassa Leaf Spot (fungus - Cercospora fragariae): This is one of the more common leaf spots of strawberry. It ... main roots will be destroyed. Fumigation has helped with this problem. Anthracnose (fungus - Colletotrichum fragariae): The fungus attacks leaves, stolons, petioles, fruit and plant crown. Leaf infection is ...
plantpathology.tamu.edu

Pecan
... and shoot surfaces with a fungicide must be maintained to prevent infections. Brown Leaf Spot (fungus - Cercospora fusca): Brown leaf spot affects only mature leaves and does not appear until the latter ... Pecans which were previously infected by the powdery mildew fungus are brown in color when the fungus is washed by rainfall. The fungus is sometimes associated with nursery trees or sucker growth ...
plantpathology.tamu.edu

SNAPDRAGON
... (fungus - Oidium spp.): Largely confined to greenhouse-grown snapdragons, this mildew forms a white, powdery coating on both leaf surfaces and young stems. Spray with recommended fungicide. Leaf Spot (fungus - Cercospora ... dingy gray to white. No control measures have been developed but fungicides that control Cercospora spp. on other crops might be effective. Root Knot: (See section on Root Knot.) ...
plantpathology.tamu.edu

ZINNIA
... seeds are more easily injured by this treatment. Use recommended protectant fungicide. Powdery Mildew (fungus - Erysiphe cichoracearum): Whitish powdery growth on leaves and stems. Leaves die from base ... cease growth. Spray with recommended fungicide as soon as mildew appears. Leaf Spot (fungus - Cercospora zinniae): Small, roundish spots with gray or whitish centers. Several spots may run together ...
plantpathology.tamu.edu

Trees part 2
... fungus - Ascochyta cornicola): This fungus produces irregular leafspots varying in size, with gray to tan centers and prominent borders. The leaf may completely collapse, shrivel, and turn black. Leaf Spot (fungus - Cercospora ...
plantpathology.tamu.edu

Trees Part 3
... . Leaf Spot (fungus - Cercospora prosopidis): Although the fungicide benomyl would control the leafspot, its use is generally not necessary due to the limited damage caused by the fungus. Crown ... fungus can be carried over in seed from diseased trees. Two wilt-resistant varieties are available - Charlotte, with light-colored flowers, and Tryon, with deeper red flowers. Leaf Spot (fungus - Cercospora ...
plantpathology.tamu.edu

Castor
... planted in soils where the fungus is established. Cultural practices as recommended for root rot control of cotton may be effective. Leaf Spot (fungus - Cercospora ricinella): Light brown, generally circular interveinal spots with margins of concentric rings, are produced. With age, the center of the spot changes to light gray. Leaf Spot (fungus ...
plantpathology.tamu.edu