spot fungus

Listing 1 - 10 from 254 for spot fungus

Orchid Disease : Leaf Spot Fungus
... Orchid Disease : Leaf Spot Fungus contact | links | site map home the greenhouse orchid growthpests, diseases & potting orchid lingo DISEASE: LEAF SPOT FUNGUS SYMPTOMS: Leaves have purplish brown or black spots that are sunken. Spots ...
www.theorchidsite.com

Dollar Spot on Turfgrass, HYG-3075-96
... cool moist weather. Dollar spot on bluegrass. Hourglass-shaped tan lesions on bentgrass leaf blades. Causal Organism Dollar spot is caused by the fungus, Sclerotinia homoeocarpa. This fungus produces resting bodies ... dew, rain or sprinkler irrigation favor growth of this fungus. Prolonged wet foliage is a key factor. Growth of the dollar spot fungus is inhibited when temperatures exceed 90 degrees F ...
ohioline.osu.edu

Rose Garden Check List for Fall and Winter 2004-5
... black spot disease? Remember -- once a plant is infected with the black spot fungus, you cannot kill the fungus. The key word in controlling black spot is preventive spraying. c. Did you remove any black spot infected leaves either on the plant or on the ground? Studies have shown that the spores of this fungus can ...
potomacrose.org

FPHG -
... | Pome Fruits | Disease Descriptions and Management | You are here. Pear Leaf Spot The pear leaf spot fungus, Mycosphaerella pyri, infects the leaves of pear, quince, and occasionally apple trees ... this disease in Pennsylvania. The control program for Fabraea leaf spot will usually control this leaf spot as well. College of Agricultural Sciences | Extension | Publications Copyright -- Alternative ...
ssfruit.cas.psu.edu

ODIN011 - Entomosporium Leaf Spot on Red Tip
... Cycle] [Control] [Back to Ornamental Disease Notes] [Other Resources] General Information Leaf spot, caused by the fungus Entomosporium maculatum, is a widespread and destructive disease of red tip (Photinia fraseri ... are important in the survival of the Entomosporium leaf spot fungus. Fallen, diseases leaves are less important sources of the fungus. Masses of spores are released during periods of ...
www.ces.ncsu.edu

brown spot
... 5% or less. Because brown spot populations build up higher and higher throughout the growing season, and because aging tissue is more susceptible to the brown spot fungus, plants that remain in the field longer than normal are most damaged by the brown spot disease. Other important conditions that lead to brown spot are continuous tobacco ...
www.ces.ncsu.edu More from this site

Health update: Tom Volk's Fungi-- including mushrooms, mycology, mushroom, molds, mold, morels, fungus
... ( see botit.botany.wisc.edu/toms_fungi/Jun2006.html -- it's this month's Fungus of the Month!) . My next biopsy is Friday June 30.. I think I ... week of school with no problems, although I'm way behind on the Fungus of the Month. It's finally online after a very busy last few ... April. Oh well. Maybe I'll get a collecting trip to a warmer spot some time before then. So this is a pretty boring update. I ...
botit.botany.wisc.edu

Cork Spot And Bitter Pit Of Apples, HYG-1403-92
... spot are physiological disorders that can affect apple quality and reduce visual appeal. Fruit growers sometimes confuse these disorders with damage resulting from insects or pathological diseases, particularly those involving fungus infections or hail injury. Cork spot, bitter pit and Jonathan spot are similar in that damage to tissue ...
ohioline.osu.edu

Cucumis and Cucurbita species Disease Descriptions - Alternaria Leaf Spot
... species Disease Descriptions - Alternaria Leaf Spot Alternaria Leaf Spot Symptoms on Cantaloupe Alternaria Leaf Spot (fungus - Alternaria cucumerina): Small, circular watersoaked spots first appear on the leaves, later enlarging ... and margins appear giving the diseased area a "bull's eye" appearance. The fungus overwinters in crop residue and on other cucurbit plants. Numerous air-borne spores ...
plantpathology.tamu.edu

Daucus carota var. mativue Disease Descriptions - Leaf Spot
... Daucus carota var. mativue Disease Descriptions - Leaf Spot Leaf Spot Symptoms on Carrot Leaf Spot (fungus - Cercospora carotae): This disease may occur at any position on the leaf but is most ... pale center and dark margin. Spots on the petiole may encircle it causing defoliation. Leaf spot is distinguished from leaf blight by the nearly circular, sharply defined lesions with a yellow ...
plantpathology.tamu.edu More from this site

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