Re: Virus?

Thanks Wendy,
I am just catching up on email since my visit to SA. It really looked green
in the Adelaide hills more than Melbourne.
I have looked at the Texas www site and at the Readers Digest Gardening book
as well as discussing the matter with my neighbour who is has a PhD in
related areas. My conclusion is that it must be a virus. This is based on
the fact that fungal diseases usually develop due to moisture whereas it has
been very dry. Also the leaves are curling up at the edges and distorted,
this is only described as a symptom of a virus. The Texas site describes a
virus called Curl Leaf.
In answer to your question. If you mean burnt as in black - no, but they do
go brown and dry right out.
Stewart
-----Original Message-----
From: Wendy Stayner <pumpkin@ajm.net.au>
To: pumpkins@mallorn.com <pumpkins@mallorn.com>
Date: Thursday, 27 November 1997 21:49
Subject: Re: Virus?


>Hi Stewart
>
>Do the leaves look like they are burnt?  This happened in Goulburn a few
>years ago, but the problem disappeared and the vines kept growing with
>good results.  So hopefully this is what occurring with your vines.
>
>Our vines are about to run, but haven't started yet.  They stood up to
>the heat very well.  A few heavy spots of rain today, but that's all.
>Thankfully a lot cooler.
>
>Wendy
>
>Stewart Deans wrote:
>>
>> Thanks Tony,
>> At least it is moral support.
>> I will post this on the main list hope you don't mind, maybe some will be
>> able to help.
>> Last year all my tomatoes died prematurely, it
>> started in one patch and spread through the whole lot from the bottom up.
I
>> discussed it with experts who suggested it was a virus. I did have white
fly
>> at that time and if the white fly is a vector for the spread of the virus
>> that could explain things.
>> It sounds like Wendy hasn't had problems yet.
>> I have found that only the growing ends of the vines are affected, the
large
>> leaves are very healthy. I thought this could have been because I sprayed
>> them for white fly but the new leavs wer not protected, but I may be
kidding
>> myself. The problem looks more like a virus than a fungal problem but I
have
>> given them some Mancozeb anyway - can't hurt.
>> Stewart ACT
>> sdeans@pcug.org.au
>> -----Original Message-----
>> From: Hickman, Tony Subject: Virus?
>>
>> Stewart, My leaves went brown and crisry around the edges
>> and went dark green like they where really old. Then they
>> went spotty and developed holes after a week of worry I
>> sprayed with manzoceb, after talking to John Mac
>> (that's what I'm gunna call him from now on) I figured the
>> same as him-Alternaria Leaf Spot.
>> I did see the white fly and leaf curl bit, no mention of how to
>> treat it, maybe I have that.......?
>> OH......OH... The white flies are on all my cucurbits and tomatoes.
>> My tomatoes are curling up to, maybe it is a virus!
>> Might be time to step back and think about this.
>> The pumpkins, cucumbers and gourds are much healthier
>> now that I have sprayed.
>> I have sprayed the tomatoes with copper sulphate spray.
>> I'll see how they go.
>> And I spray every third day for white flies.
>> I have NEVER sprayed in my life.....I guess I must be turning
>> into an American.
>> Have I helped?......I doubt it.
>>
>> Tony H
>>
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