Information and discussion regarding garden diseases, insects and other unwelcome critters.
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August 13, 2020 | #361 |
Tomatovillian™
Join Date: Jan 2011
Location: North West Wyoming
Posts: 466
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Tswv is hitting me hard. I've been spraying every week with alternating insecticides plus have 12 yellow sticky traps that I have replaced for the second time. I've pulled at least 30 plants with about 20 plants left. Is it safe to use saved seed? I received some of Carolyn's last seed. I love Dikovinka and saved some of the first ripe tomato seeds. Inshir Rozovyi and Viva so far look okay but still green. I ordered and tried Slava this year and it seems to withstanding the onslaught. Mountain Magic didn't make it.
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August 18, 2020 | #362 |
Tomatovillian™
Join Date: Sep 2009
Location: Alabama
Posts: 7,068
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I've got a couple of more bells that need pulling due to TSWV after pulling one last week. I'm not worried about the tomatoes any more because most of them are pretty worn out and near the end unless I want to spend a lot of time and effort getting them back to making a few tomatoes. TSWV has not been too much of a problem with my tomatoes the past month because I have been spraying them regularly for spider mites and I think it has lessened the thrips infecting them.
Bill |
September 20, 2020 | #363 |
Tomatovillian™
Join Date: Aug 2012
Location: Turkey
Posts: 58
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Every single tomato in our community garden is infected like this. It is on leaves as well as on stems. Is it tswv
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September 23, 2020 | #364 |
Tomatovillian™
Join Date: Aug 2012
Location: Turkey
Posts: 58
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Here some more pictures
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September 23, 2020 | #365 |
Tomatovillian™
Join Date: Sep 2009
Location: Alabama
Posts: 7,068
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It sure looks like TSWV. Are the new blooms dying or dead? Is the top new growth looking like it is burned around the edges of the leaves?
If all your plants have it then there is no need to pull the plants if they have some healthy looking tomatoes on them. Let them start to ripen and by then the plants will probably start dying or wilting from the top. If what you have is TSWV it is very rare for a plant to continue producing new fruit although I have had it happen to a few and they held on for months with very slow production and smaller fruit; but usually it is only a matter of a few weeks at most before the plant starts dying after showing the rust like appearance in the leaves. Bill |
September 24, 2020 | #366 |
Tomatovillian™
Join Date: Aug 2012
Location: Turkey
Posts: 58
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Thank you for the explanation. I had cut the top to prevent it from spreading but it did not work
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September 26, 2020 | #367 | |
Tomatovillian™
Join Date: Sep 2009
Location: Alabama
Posts: 7,068
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Quote:
The only effective thing I have found that has so far assured me of a productive season despite the ravages of TSWV is to plant far more tomatoes and peppers than I need and just remove the sick ones when it strikes. It can leave some very gappy rows at times of heavy or frequent infections of TSWV and at other times I end up with way more tomatoes than we can deal with in seasons where TSWV is not as pervasive as usual down here. Bill |
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October 23, 2020 | #368 |
Tomatovillian™
Join Date: Feb 2006
Location: Alabama
Posts: 2,250
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That may be one of the Tomato Mottle viruses. For practical purposes, they are similar in many ways to TSWV. The only cure is to remove infected plants. Some breeders have been working on mottle virus resistance but are having difficulty getting the gene from a wild species to cross over into a better genetic background.
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January 21, 2021 | #369 |
Tomatovillian™
Join Date: Jan 2011
Location: North West Wyoming
Posts: 466
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Can whitefly be a vector? My back garden seems to be worse for tomato growing. I did have raspberry plants move from the other side of the fence and I let them take over a raised bed. It has been a whitefly battle. The raspberries are about 20 feet from my other raised beds. Seriously I am thinking of giving up tomatoes in the back and growing them just in the front. We have a good source of water and I grow tomatoes there on cattle panels.
Thanks, Barb |
February 4, 2021 | #370 |
Tomatovillian™
Join Date: Feb 2006
Location: Alabama
Posts: 2,250
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Whiteflies are a vector for several other viruses such as TYLC so there is a good possibility they also transmit TSWV. It is most likely that other insects are the primary vector.
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February 4, 2021 | #371 | |
Tomatovillian™
Join Date: Dec 2010
Location: Sunol, CA
Posts: 2,723
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Quote:
I would assume they can transmit various viruses. Thrips are also virus carriers.
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Artisan Seeds -- www.growartisan.com |
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February 4, 2021 | #372 | |
Tomatovillian™
Join Date: Jan 2011
Location: North West Wyoming
Posts: 466
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Quote:
Barb |
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February 4, 2021 | #373 |
Tomatovillian™
Join Date: Dec 2010
Location: Sunol, CA
Posts: 2,723
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No.
Potatoes get most of the same diseases. I don't even grow potatoes, because all of my solanaceous rotation space is devoted to peppers and tomatoes.
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Artisan Seeds -- www.growartisan.com |
February 5, 2021 | #374 |
Tomatovillian™
Join Date: Feb 2006
Location: Alabama
Posts: 2,250
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Whiteflies are becoming a problem in just about every state north of the Gulf Coast up to about Kentucky. Any location with suitable hot weather can develop an infestation. The most effective measures to limit damage are to eliminate common hiding places and remove plants that are alternative hosts. Spraying can be effective in some circumstances, but there are always more whiteflies to re-colonize an area.
Some work at Waginengen was discussed here a few times over the last 10 years indicating resistance breeding is viable. It is worth a look at the original papers. https://www.academia.edu/6874956/Res...wild_relatives Look at the bottom center of the page for a button to read online or you can download the pdf. Here are some alternate links I've used before. http://edepot.wur.nl/215863 http://edepot.wur.nl/222200 Last edited by Fusion_power; February 5, 2021 at 02:56 PM. |
February 5, 2021 | #375 |
Tomatovillian™
Join Date: Jan 2006
Location: Brownville, Ne
Posts: 3,295
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A friend in my area grew hydroponic greenhouse tomatoes for a time. After several years he quit mostly because it was a money losing effort. Besides the profit issue he had whitefly problems.
None of his outdoor tomatoes had whitefly infestations despite being a short distance away from the greenhouses. I live 30 miles north of his gardens and greenhouses and have never had a whitefly. Is it because even though we have hot and humid summers (although not like the southeast) followed by cold winter months which kill off the whiteflies? Most of the nasty diseases and insect pests are not prevalent here like in the southern states. Maybe the problems are killed off by our winters before they become issues. But then why would Wyoming have the problems we do not see?
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there's two things money can't buy; true love and home grown tomatoes. |
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