| Uncinula necator | |
|---|---|
 |
|
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Leotiomycetes |
| Order: | Erysiphales |
| Family: | Erysiphaceae |
| Genus: | Uncinula |
| Species: | U. necator |
| Binomial name | |
| Uncinula necator (Schwein.) Burrill |
|
Uncinula necatorsyn. "Erysiphe necator" is a fungus that causes powdery mildew on grape. It is a common pathogen of grape (Vitis vinifera). The fungus is believed to have originated in North America. European varieties of Vitis vinifera are more or less susceptible to this fungus. Uncinula necator infects all green tissue on the grapevine, including leaves and young berries. It can cause croploss and poor wine quality if untreated. The sexual stage of this pathogen requires free moisture to release ascospores from cleistothecia in the spring. However, free moisture is not needed for secondary spread via conidia; high atmospheric humidity is sufficient. Its anamorph is called Oidium tuckeri.
This mildew can be treated with sulfur or fungicides, however resistance to several chemical classes such as Benomyl, the DMIs and Strobilurins has developed. While synthetic fungicides are often recommended as applications around bloom, it is common to include sulfur in a tank mix to help with resistance management.
 |
Wikimedia Commons has media related to: Uncinula necator |
| This Leotiomycetes-related article is a stub. You can help Wikipedia by expanding it. |
 |
This plant disease article is a stub. You can help Wikipedia by expanding it. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
