Definitions

1. Powdery mildew is a fungal disease that affects a wide range of garden plants.
2. Powdery mildew is a fungus which spreads a white or ash-grey film over the upper and lower surfaces of the leaves of plants-usually the older leaves.
3. Powdery mildew is a fungus that grows on upper leaf surfaces and stems. (Web site)
4. Powdery mildew is a common disease of roses, crepe myrtles, dahlias, zinnias, calendulas, sweet peas, cucurbits and vine crops.
5. Powdery mildew is not likely to be found in the rest of the field if it cannot be found in the yellowing areas.

Field

1. A cucumber plant showing signs of powdery mildew infection in the field.

Related

1. Oidium albicans has been a parallel name of the yeast Candida albicans (not related to the powdery mildew). (Web site)

Season

1. Vineyard health was optimum during most of the season, except for a few outbreaks of powdery mildew in the most sensitive varieties. (Web site)
2. Good control early in the season to prevent establishment of the disease is the key to preventing a powdery mildew epidemic later in the summer. (Web site)

Leaves

1. Typically powdery mildew only occurs on the upper surfaces, a similar but unrelated group of fungi that grow on the lower sides of leaves are downy mildews.

Negatively

1. Powdery mildew can negatively affect the smell, taste and colour of wines made from infected grapes. (Web site)

Sulfur

1. The use of pesticides also began in the mid 1800s, when it was discovered that dusting of grape plants with sulfur provided a cure for powdery mildew.

Spores

1. Water splash and air currents spread the spores of powdery mildew which grows on the surface of the leaf only.

Resistant

1. It is similar to Chardonnay but is more resistant to powdery mildew.

July 2003

1. Since July 2003, rhododendron bushes have frequently been observed infected with powdery mildew in the Czech Republic (Olomouc, Brno, Ostrava, and Zlin).

Fungicide

1. AuxiGro is used as a desiccant, disinfectant, fertilizer, fungicide, and growth regulator to increase yield and prevent powdery mildew in various crops. (Web site)

General Description

1. There are numerous fungi that fall under the general description of a powdery mildew. (Web site)

Garden Plants

1. This is great for fungi such as powdery mildew, but disastrous for many garden plants, especially for rose bushes.

Powdery Mildew Fungi

1. For example, the mlo mutation does not confer any resistance to other fungi of the division of Ascomycota, which are closely related to powdery mildew fungi. (Web site)
2. In summary, beside powdery mildew fungi, no pathogen is known that is negatively influenced by the mlo mutation. (Web site)
3. Glawe, D. A. 2006. Synopsis of genera of Erysiphales (powdery mildew fungi) occurring in the Pacific Northwest.

Fungal Pathogens

1. Powdery Mildew: Is cause by fungal pathogens.
2. Unlike most fungal pathogens, powdery mildew fungi tend to grow superficially, or epiphytically, on plant surfaces.

Downy Mildew

1. Common grape diseases are black rot, downy mildew, powdery mildew, phomopsis cane and leaf spot, and botrytis bunch rot or gray rot. (Web site)

Oidium

1. Oidium: Another name for powdery mildew, the fungi that can cause severe damage to grape crops. (Web site)
2. Oidium is a fungus, more commonly called Powdery Mildew.

Ascomycetes

1. The Erysiphales (powdery mildew fungi) are Ascomycetes of major economic significance.

Rusts

1. Important biotic pests include the rusts, Karnal bunt, foliar blight, powdery mildew, common bunt, flag smut and nematode and insect pests.

Botrytis

1. Common fungal diseases that attack plants are "damping-off," Botrytis, and powdery mildew. (Web site)

Black Spot

1. They are susceptible to black spot and powdery mildew. (Web site)

Ergot

1. Commonly seen examples include apple scab, ergot, black knot, and the powdery mildew s. (Web site)

Scab

1. Senator (thiophanate-methyl) is also registered on apple for scab and powdery mildew with a 1 day pre-harvest interval.

California

1. Don't get smug, California; you have Powdery mildew. (Web site)

Grape

1. A French nurseryman, Dr. François Durif, propagated the grape trying for resistance to powdery mildew and named it after himself, in the 1870s. (Web site)
2. The grape continued to grow in popularity till the Powdery mildew epidemic of 1852 exposed Cabernet Sauvignon's sensitivity to that grape disease. (Web site)

Plants

1. The various species of powdery mildew affect a wide variety of plants in hundreds of genera.
2. This solution is sprayed on plants to prevent powdery mildew infections. (Web site)

Plant

1. Most powdery mildew fungi grow on the surface of the plant host.

Cucumbers

1. Powdery mildew of cucumbers is a serious and common problem in greenhouses.
2. Podosphaera fusca is a fungus that can cause powdery mildew of Curcurbits: cucumbers, squashes (including pumpkins), luffas, melons and watermelons. (Web site)

Rot

1. The vine does face significant viticultural hazards with high sensitivity to rot, powdery mildew, downy mildew and grape worms.
2. Roussanne is an irregular yielder due to a tendency to Powdery Mildew and Rot, and was almost erradicated until better clones were selected. (Web site)

Fungi

1. Diseases - Powdery Mildews: Many plants are susceptible to infection by powdery mildew fungi.
2. Rotation of products is a special concern for any disease caused by a fungus that makes as many spores as powdery mildew fungi. (Web site)
3. Powdery mildew fungi (oidium, sphaerotheca and erysiphe) are obligate parasites that cannot live in the absence of a plant host. (Web site)

Disease

1. This fungus is the cause of powdery mildew disease. (Web site)
2. Uncinula necator is responsible for the disease Powdery mildew, which attacks grapevines.
3. Frontenac is also very resistant to disease, with good resistance to Powdery Mildew and Botrytis bunch rot, and almost complete immunity to Downy Mildew. (Web site)

Susceptible

1. This variety is susceptible to downy mildew, but resists powdery mildew and black rot.
2. Another drawback of this crop is that it is susceptible to a disease called powdery mildew.
3. Chancellor Quite tannic and known for its plum-cedar aroma, this grape is susceptible to powdery mildew and must be carefully scrutinized before crushing.

Fungus

1. The powdery mildew fungus that devastated the vineyards of Europe in the mid-nineteenth century.
2. For the fungus that causes powdery mildew on grapes, see Uncinula necator. (Web site)
3. Uncinula necator is a fungus that causes powdery mildew on grape. (Web site)

Mildew

1. Mildew is also used by plant pathologists to identify plant diseases, such as "powdery mildew," caused by fungi.

Powdery Mildew

1. Powdery mildew: Fungal disease of grape vines which, unlike most fungal diseases, thrives in dry climates.
2. Oidium is a fungal disease, also known as powdery mildew, that almost destroyed the vineyards of Europe in the mid-nineteenth century.
3. Roussanne grapes are susceptible to powdery mildew and rot, and the vine is a shy and erratic producer even under ideal conditions. (Web site)

Categories

1. Life > Organisms > Fungi > Mildew
2. Susceptible
3. Life > Organisms > Fungi > Fungus
4. Plant Diseases
5. Encyclopedia of Keywords > Nature > Rot
6. Books about "Powdery Mildew" in Amazon.com
   

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