answersLogoWhite

0

Origin

· Downy mildew belongs to the Peronosporaceae family and powdery mildew belongs to the Erysiphaceae family.

Infection Site

· Powdery mildew spores appear on both sides of the leaf, where as downy mildew only produces spores on the underside of leaves. Powdery mildew produces spores in a tree-like formation, while downy mildew spores are produced in chains.

Growth Conditions
  • Powdery mildew requires a nighttime temperature of at least 60 degrees F and a daytime temperature of 80 degrees F. It also requires a nighttime humidity of 90 to 99 percent and a daytime humidity of 40 to 80 percent, according to R. K. Horst, professor of plant pathology at Cornell University. Downy mildew can't survive below 40 degrees or above 80 degrees F. Sixty-five degrees is ideal for downy mildew and humidity needs to be above 85 percent.

Transmission
  • Powdery mildew spores are spread by wind. Downy mildew spores spread as a result of splashing water. Spores are usually launched from dead leaves on the ground upward to the underside of plant leaves during rainfall.

Symptoms
  • Powdery mildew produces a thick web of white spores that cover the leaves, stems and shoots. The leaves turn yellow and fall off. Downy mildew produces a gray or white fuzz on the underside of leaves. The top of the leaf has yellow blotches.

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

What are some fungal diseases of plants?

Pythium Downy mildew Powdery mildew Rust Phytophthora


What is a downy fungi called?

A downy fungi is commonly known as a powdery mildew. It appears as a white or grayish powdery substance on the leaves, stems, and flowers of plants. Powdery mildew thrives in warm and dry conditions and can negatively impact plant health.


What has the author M Ahmedullah written?

M. Ahmedullah has written: 'Powdery mildew of grapes in Washington' -- subject(s): Downy mildew diseases, Mildew


Is mildew unicellular or multi cellular?

Mildew can be either unicellular or multicellular, depending on the species. Some types of mildew, such as downy mildew, may have multicellular structures, while others, like powdery mildew, can consist of mostly unicellular spores.


A white powdery substance on plant leaves peace lily prayer plant with this problem?

sounds like downy mildew, its a fugi disease


Scientific name of mildew?

The scientific name of mildew is typically classified as belonging to the group of fungi known as Oomycetes. Examples include the species Pseudoperonospora cubensis, which causes downy mildew in cucurbits, and Plasmopara viticola, responsible for downy mildew in grapevines.


What kind of diseases can cabbage have?

Clubroot, Downy Mildew and Fusarium Wilt.


How does downy mildew get energy?

I don't know ........... uhhh... yeah :0


What is 'downy mildew' in Portuguese?

"Míldio" is a Portuguese equivalent of "downy mildew" (Peronosporaceae family).The Portuguese word is a masculine noun. Its singular definite article is "o" ("the"). Its singular indefinite article is "um" ("a, one").The pronunciation is "MEEL-dyoo."


What is 'downy mildew' in Spanish?

"Mildio" is a Spanish equivalent of "downy mildew" (Peronosporaceae family).The Spanish word is a masculine noun. Its singular definite article is "el" ("the"). Its singular indefinite article is "un" ("a, one").The pronunciation is "MEEL-thyoh."


How is mildew harmful to you?

They contain a certain type of mold that makes you sick. They infect plants. For example the potatoe famine was caused by a downy mildew.


What is the Spanish 'mildio' in English?

"Downy mildew" is an English equivalent of "mildio" (Peronosporaceae family).