Madera County
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Madera County

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Watch for Sclerotinia Stem and Crown Rot

White mycelium of <em>Sclerotinia</em> is visible when humidity is high.

We may begin to see symptoms (stem wilting) and signs (white fungal mycelium growing on stems) of Sclerotinia stem and crown rot now that there has been some rain and fog. Although the fungus infects...

White mycelium of <em>Sclerotinia</em> is visible when humidity is high.
White mycelium of Sclerotinia is visible when humidity is high.

Apothecia, spore producing structures of <em>Sclerotinia</em>, on the soil surface.
Apothecia, spore producing structures of Sclerotinia, on the soil surface.

Posted on Tuesday, November 27, 2012 at 3:21 PM
Tags: Sclerotinia (1)

Alfalfa Weevil Adults Return to Alfalfa Fields

Egyptian alfalfa weevils aestivate outside alfalfa fields during the summer often under bark of trees.

As the weather turns cool, how will insects cope with this? Have you ever pondered what keeps insects from perishing in unfavorable environmental conditions; they obviously survive successfully and...

Posted on Monday, November 19, 2012 at 1:06 PM
  • Author: Larry Godfrey

Alfalfa at AgVenture

Alfalfa station at AgVenture.

This blog is an outreach tool for alfalfa and forage information. We hope you will find it convenient and the information relevant and timely. From time to time, however, we may stray from posts on...

Posted on Thursday, November 8, 2012 at 12:14 PM

Pale Striped Flea Beetle in Seedling Alfalfa

Adult pale striped flea beetle, about 3/16 inches long (Photo:UC IPM)

In the second week of October, we had a one-to-three trifoliate seedling alfalfa field in Tulare County with plants dying on the north end. The surviving seedlings had leaves with holes and ragged...

Posted on Monday, November 5, 2012 at 1:46 PM

Verticillium Wilt of Alfalfa

Verticillium wilt of alfalfa

Verticillium wilt disease of alfalfa is relatively new to California, having first been found in isolated fields in Humboldt and Monterey counties in 1985.  Verticillium wilt is a disease caused...

Posted on Monday, October 29, 2012 at 5:57 PM
  • Author: Vonny M. Barlow

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