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Posts Tagged ‘Jeavons’

Reporting on the Great Fava Versus Wilt Experiment!

Some of you have been following my fava experiment, that, per John Jeavons, favas counteract the tomato Fusarium and Verticillium Wilts fungi, hoping it would work. Issues for me were lower leaves, humidity, low spots, nearby plant water needs. I religiously watered only nearby plants. But that was still a problem because the neighboring plants needed a LOT of water, and the toms were in low spots. The fava ring, planted around each tomato, grew really well and was so bushy I forgot to reach in and trim the lowest ground-touching leaves off my tomatoes. The favas created a humid environment, blocked air flow. They got the wilt first, kind of like a trap plant. But then it spread to the tomatoes because I had planted them closely, not knowing how far apart I should plant them. Perhaps I should have removed the favas at first signs of the wilt?

I didn’t give up on favas.

  • As per the long-term plan, I decided where I would plant some of this summer’s toms, and put in dense fava patches in those places. They are now ready to be used as green manure.  Tip!  Cut them down just as they begin to flower.  When they flower, the energy of the plant no longer goes into making leaves, but production.  And the stalks get tougher the longer they grow – harder to chop up.
  • At planting time, I will add a good dose of animal manures and compost, and my usuals – a huge handful of bone meal, a handful of non-fat powdered milk, and worm castings, and a new item, a tad of coffee grounds (see below), as well, to the planting holes.
  • I’ll plant in wells/basins on slightly raised mounds for drainage, and plant only plants that need less water nearby, ie no basil.
  • I’ll top the area with a one inch layer of compost, then cover with a thin layer of straw mulch to prevent the splash factor. When water splashes up from infected soil onto the lower leaves, the plant is infected. I will replenish the straw monthly. Straw has air flow through its tube structure, allowing the soil to be drier even though straw is a mulch.
  • I’ll plant my resistant and tolerant varieties far enough apart so their leaves don’t touch, and trim the lowest splash susceptible leaves away, remove infected leaves promptly. I don’t expect to stop the wilt, just slow it down, a LOT.
  • Instead of long living indeterminate varieties, I’m going to plant determinate faster producing varieties successively, removing infected plants when they finish producing.
  • I’m going to plant later. Rather than put young vulnerable plants in cool fungi laden soil, depending on the weather, I’m going to wait until late May, even June, when the warmer soil is drier. In the past I have had volunteers come up in July and gotten good crops from them late August, September!

Coffee Grounds: Myths, Miracles or Marketing?!

Here’s some study results adapted from the Washington State U report! Disease suppression As they decompose, coffee grounds appear to suppress some common fungal rots and wilts, including FUSARIUM! In these studies, coffee grounds were part of a compost mix, in one case comprising as little as 0.5 percent of the material. Researchers suggest that the bacterial and fungal species normally found on decomposing coffee grounds prevent pathogenic fungi, like Fusarium, from establishing. Currently, disease suppression from coffee grounds has only been demonstrated under controlled conditions on a handful of veggies, bean, cucumber, spinach, and tomato. Their efficacy in gardens and landscapes is unknown, as is any protective activity on other plant materials such as trees or shrubs.

Not all get a jolt – Weed Suppression
Not all plants get a jolt from coffee grounds. Seed germination can be inhibited by water leached through coffee grounds. Growth of crops such as Chinese mustard (Brassica juncea), komatsuna (Brassica campestris) and Italian ryegrass (Lolium multiflorum) were all inhibited by coffee grounds, as was that of ornamentals including inch plant (Tradescantia albiflora), geranium, and asparagus fern. One investigator speculated that toxic substances released from decomposing coffee grounds were responsible for their inhibitory effect. This effect also reduces weeds, and perhaps in a landscape dominated by large shrubs and trees, only germinating seeds and seedlings would be injured. But as there has been no experimental research on coffee grounds and woody plants, this is only speculation, says the author.

Moral of the story is go lightly, only 0.5 % in your compost – that’s a 1/2 of a %!
That’s very little! Just as our soil only needs 5% humus, over composting is not helpful, so is too much coffee grounds. When I first started gardening, I laid some grounds down as mulch. Bad beginners move. The plants there died, and that area grew plants poorly for the following two seasons.
May you and your tomatoes have a happy summer!

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Jetsetter Tomatoes, Early, VFFNTA!!!!

It may seem a bit early to talk about tomatoes, but tisn’t!  Hey, it’s always ok to talk about tomatoes, right?!  There are important things to know about that start well before planting time!  Read on….

Last year I tried the dandelion cure – either I didn’t do it right, not enough dandelions soon enough, or it doesn’t work.  But this year I am going to plant toms where the dandelions grew into big patches, just in case there are any residual benefits!  This year I found this info from Gene Bazan, Ph.D, about toms and favas and I have fava seeds!!!!

Favas First, then Tomatoes!  Or….

Gene says:  Many years ago I introduced a diseased Early Girl tomato plant I purchased at a greenhouse. Unknown to me, it had verticillium wilt. I thought the wilted look was just due to dry conditions, but didn’t think much about it. I composted the debris, and unwittingly used the diseased compost in the following year’s tomato bed. That year I lost 3/4 of our tomatoes to wilt. I then took a diseased plant to the pathology lab at Penn State, and got the diagnosis. I remembered that Jeavons wrote that fava (bell) beans counteract wilt, so the next year I planted fava beans in early April, and put the same tomato varieties in the same bed. Mortality dropped to 1/4th. Since that time, we always precede tomatoes with bell beans. We have reduced wilt even further.

Clearly, here in SoCal, we have missed the usual Sep to Nov fava planting window, so let’s do as Gene did, plant favas and tomatoes at the same time!  I already have one Jetsetter (those are Jetsetters in the image), unbelievable VFFNTA resistance/tolerance, in the ground surrounded with a six pack’s worth of favas.  All doing fine so far.  Next fall decide where you will plant your 2012 toms and put in a patch of favas then and there!  Plant your toms, as usual, starting in March.

Basil and Wilts Since so many of us like to companion plant basil with our tomatoes, and tomatoes are so wilt susceptible, and the wilt fungi are in the soil and windborne to boot, what’s a Pesto Lover to do?!  Get wilt resistant basil variety Nufar! Pesto lovers, Nufar is the first basil that is wilt resistant, developed in Israel in 2006.  It is a Genovese basil, heat and humidity tolerant, and very tasty!  ArcaMax Publishing says:  …some of the specialty basils (such as lemon and purple basil) have shown some resistance to the disease.  If you can’t find Nufar basil locally, do send for seeds ASAP, and ask our local nurseries to stock it!

And please, do NOT compost diseased tomatoes, or any other diseased plant.  Better to trash it, not even put it in green waste that the City will make into compost.  That’s how you spread soil born fungi, let alone that they are also windborne.  If your neighbor has a diseased plant, don’t be shy to respectfully and gently ask them to remove it.  Remember, they raised that child, besides having paid for it.  How hard was it for you to give up your plant?  Especially the first time.  See?  They may not even know about wilts.  Educate them if possible.  Tell them how you learned about it.  Offer to forward this info to them.

TOLERANT.  Some varieties like Surecrop, mentioned below, are wilt tolerant.  They keep producing well though diseased.  What to do?  At Pilgrim Terrace, the soil has the wilts and wilt is virtually unavoidable.  Slowing it down is probably the best we are going to do.  So, find out what variety your neighbor has planted before you make your request for them to pull a producing plant.  If the plant is simply dead, then it is a nonproducing disease factory, better for everyone that it is removed ASAP.  Use your discretion and kindness. 

If you have success with a particular variety, do let your nursery know so they will stock it again!  A couple gardeners at the Terrace have had good luck with 2 blight resistant/tolerant determinate varieties, New Hampshire Surecrop, a 78 day, great tasting slicer/canner, and Legend, a very early 68 day!  The best to you with yours!

See Tomatoes & Wilt, Part 1 for a list of Wilt Resistant Varieties, How to Save Your Plant Tips

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