Re: Botrytis was:Honeysuckle vine
- To:
- Subject: Re: Botrytis was:Honeysuckle vine
- From: M* T*
- Date: Mon, 19 Jun 2000 01:21:01 -0400
Barb, my take on Botrytis and all the other fungi around is that the
spore are in the air, not the soil. Normal garden air is full of all
kinds of fungal spores all the time. Some fungi do drop to the
ground and then rely on rain splashes to move them back up to plant
leaves, but they don't "live" in the ground. Assorted fungicides are
effective against Botrytis.
There are several interesting common substances that show fungicidal
properties:
* baking soda (recipe tested by Cornell has been posted before, but
if you want it again, yell)
* cinnamon (either sprinkled on straight on damp leaves or sprayed
on) and
* milk (spray of 1 part cow's milk to nine parts water, sprayed once
a week) , for instance.
Have squirreled away assorted posts on same over the years. Have
used the baking soda recipe against powdery mildew to great effect.
In looking at some of my "saves", I see that none specifically say
Botrytis, but it is a fungal problem, so trying one of these might
work and sure couldn't hurt.
Benomyl used to be the fungicide most mentioned, but it is now
forbidden in most places. I've read recommendations for Daconil as a
substitute - guess it's still available, but have no knowledge. Have
read of its use against Botrytis specifically.
Another saved post from someone, in reference to Botrytis on lilies,
fritillaries, etc., recommended a product called Viresco. The poster
said it is a culture on beneficial organisms held in a dry state on a
base of soluble humates and spraying 3 times with it resulted in
absolutely no sign of botrytis on plants that otherwise always had
it.
Bottom line is that if your vine actually has Botrytis, there are
ways to combat it. One other note is that good air circulation is
helpful in preventing most fungal diseases as it helps keep foliage
dry and many fungal pathogens must have a film of moisture to do
their thing in.
I'm not so sure cutting your vine to the ground is a good idea -
could kill it, depending on which one it is - as I said in another
post, have this idea that L. sempervirens resents hard pruning. You
can cut Hall's honeysuckle back to China and it will re-grow, but the
different species react differently. I'd simply remove the
blackened tips and any other leaves that look like they are having a
problem and trash them.
Marge Talt, zone 7 Maryland
mtalt@clark.net
Editor: Gardening in Shade
-----------------------------------------------
Current Article: Deciduous Flowering Shrubs - Part 1
http://www.suite101.com/welcome.cfm/222
------------------------------------------------
Complete Index of Articles by Category and Date
http://mtalt.hort.net/article-index.html
------------------------------------------------
All Suite101.com garden topics :
http://www.suite101.com/category.cfm/gardening
----------
> From: Barb Pernacciaro <bpern@idcnet.com>
> Date: Sunday, June 18, 2000 6:54 PM
>
> I assume the Botrytis that infects honeysuckle vine is in the soil
and there
> is no treatment for it?
>
> I may cut the honeysuckle down to the ground at the end of the
season and
> see what happens next year. I was hoping that the blackened tips
were aphid
> damage, plus maybe some late spring cold weather. Honeysuckle leafs
out so
> early - and here in Wisconsin sneaky late frosts often catch the
early
> birds.
>
> - Barb P. Zone 4
---------------------------------------------------------------------
To sign-off this list, send email to majordomo@mallorn.com with the
message text UNSUBSCRIBE PERENNIALS
