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Post by restless on Jul 27, 2015 14:00:03 GMT -5
I went outside this morning to see this:  20150727_064309 by Purpleplum Radish, on Flickr There are two zucchino rampicante/trombocino/trombetta whatever you want to call it on that 4 foot by 7 foot trellis. I didn't have a whole lot of time, as I had to get to work, but I traced some of those dead vines and they appear to be attached to some of those maturing squash I have at the bottom of the photo. I am wondering if I should pull the squash? What do you think happened here? SVB? I've never had them before, but that doesn't mean I don't have them now. The rest of the plant looks very healthy. And this happened extremely suddenly. Thanks for your thoughts. |
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Post by lilolpeapicker on Jul 27, 2015 15:13:42 GMT -5
The same thing is happening to my cucumbers. I don't understand it either. I see no insect damage.
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Post by kimmsr🕊 on Jul 28, 2015 5:37:39 GMT -5
The bad leaves lost the connection to the roots they need to survive. You need to look closely a the vines to find out why. At this time I would not think of pulling them. |
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Post by restless on Jul 28, 2015 6:20:34 GMT -5
I should have been more clear. I meant harvesting the maturing squash that may be connected to the dead vines.
I was in a big rush when I made my post yesterday. Busy.
I still haven't had time to fully trace the dead vine/vines to the root. This working for a living thing sure does get in the way of my gardening.
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Post by datgirl on Jul 28, 2015 6:26:19 GMT -5
I know what you mean.
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Post by brownrexx on Jul 28, 2015 8:10:47 GMT -5
Looks like a SVB has been at work. We certainly have them in PA so if you have not had them before, you have been extremely lucky. Look at the base of the vine for yellowish Frass on the stem which is what the larva pushes out of the step as it eats it's way upward (it's worm poop actually). When I have this problem I usually use my pruning shears, which are always with me in my garden basket, and I cut open the vine to see the worm or worms and I cut them in half to kill them. The vine is already dead but I figure, why let them turn into pupa for the next generation. The reason the vine dies is that the larva destroys the nutrient and water transportation system to the leaves. It does not infect or hurt the squash so I would pick it and let it cure outside. Sometimes I have actually had SVB inside my spaghetti squash though. These are the insect pests that I hate the most. lilolpeapicker I have had this problem with my cukes this year too and they do not get SVB. I have never seen cuke vines do this before and it does not seem like bacterial wilt so I do not know what it is. |
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Post by tbird on Jul 28, 2015 8:13:58 GMT -5
brownrexx - I think this variety has solid stems so resistant to SVB issues ( but may not actually be immune?) Not sure how that works.
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Post by brownrexx on Jul 28, 2015 8:16:59 GMT -5
Usually the SVB do not get into the solid stems so maybe it is something else. I always grow butternut squash and they have solid stems. This year I had 3 plants and all 3 have died leaving half mature butternut squash on the vines.
I have never had butternuts die before and I did see some squash bugs on them so maybe they are transmitting a disease of some sort.
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Post by lilolpeapicker on Jul 28, 2015 8:42:04 GMT -5
I am wondering if maybe lack of nutrition might be causing that.... Mine is in a large pot so I m thinking maybe that's why the problem for me...will report back.. My squashes except the zucchini are so far fine..
Now if I can only find the fish emulsion I bought I can try that!
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Post by brownrexx on Jul 28, 2015 8:44:04 GMT -5
I don't think that it's lack of nutrition because I have 9 plants all in the same area and only one vine has died - at least so far.
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Post by James on Jul 28, 2015 9:02:40 GMT -5
I am thinking some sort of insect damage to the stem. Not a nutrition problem for sure. We don't get The Squash Vine Borer here (knock on wood) so can't say much about them.
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Post by restless on Jul 28, 2015 9:42:30 GMT -5
Ok. So, I don't know about the main vine for sure, but the stems connecting the vines to the leaves are hollow. I know because I have pruned many leaves. I have also pruned many side shoot vines, but did not think to check if they are hollow or not. I noticed more that need pruning, so I could cut one off and check when I have the chance.
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Post by binnylou on Jul 28, 2015 12:14:53 GMT -5
I know because I have pruned many leaves Is the pruning creating an opening for offensive insects? |
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Post by restless on Jul 28, 2015 12:25:43 GMT -5
It might be, but I have not experienced that problem before. I have to prune a little bit to keep everything on the trellis and off the grass. Any vine on the grass will be unceremoniously cut down by the dude and the lawn mower.
If I get home early enough today, I am going to go out and check things out carefully to see what is hollow and what is not. I will also look for grass and try to trace the dead part down to the root. I will post photos if I find anything interesting.
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Post by restless on Jul 28, 2015 20:07:22 GMT -5
Oh no!!!!!! It is all my fault!!!!!!  20150728_201054 by Purpleplum Radish, on Flickr Just before the sun set, I had time to run out and trace the dead vine to the ground and try to figure out what happened. And this is what I found. I am sure I did this whilst pruning. GAAAAH! Hey, the good news is that I don't have SVB.  |
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