More white / yellow Rusts?

Messages and posts about fungi (mushrooms) in Malta

Moderators: AlanOuten, MWP admin, IL-PINE

Post Reply
User avatar
MWP admin
Site Admin
Posts: 3142
Joined: Mon Sep 05, 2005 11:23 am
Location: Malta
Contact:

More white / yellow Rusts?

Post by MWP admin » Sat Nov 12, 2005 8:41 pm

I met this plant at wied incita valley sides which on first impression, it reminded me of yellow or white rusts (albugo species). If so, then it seems that this season there is spreading infestation of Albuga, since in a short period of time there has been isolated albugo on Portulaca oleracea and Lobularia maritima.


Image

Image
Stephen Mifsud
Administrator

{Comments} {Donation} {Recommendations}

User avatar
MWP admin
Site Admin
Posts: 3142
Joined: Mon Sep 05, 2005 11:23 am
Location: Malta
Contact:

They aren't fungi !

Post by MWP admin » Mon Nov 14, 2005 2:46 pm

I took leaf samples of this Salvia species to the mycology lab of plant health and on examining under the microscope we found no living forms that can attributed to fungi.

The yellow patches might have resulted as a defence or reaction of the plant to some insect. In fact on looking further the patches with the microscope, we have noted very small larvae in the centre of few of the patches.

Further study on identification of these larvae will follow.
Stephen Mifsud
Administrator

{Comments} {Donation} {Recommendations}

RB
Premium Member
Posts: 838
Joined: Tue Sep 12, 2006 6:07 pm

Post by RB » Wed Oct 11, 2006 6:10 pm

Looks like salvia, but likely Phlomis fruticosa, Jerusalem Sage, which is found in the wild.

RB

User avatar
MWP admin
Site Admin
Posts: 3142
Joined: Mon Sep 05, 2005 11:23 am
Location: Malta
Contact:

Post by MWP admin » Wed Oct 11, 2006 7:31 pm

Definitely Phlomis fruticosa, (Salvia tal Madonna) but the post was concerning the yellow spots, which are some sort of disease.
Stephen Mifsud
Administrator

{Comments} {Donation} {Recommendations}

Post Reply