When sorrows come.......

[Jonathan_E]

.....they come not single spies but in battalions. (as Claudius said)

First Fusarium Wilt; now my PL plants seem to have septoria leaf spot. Or at least that's my quick diagnosis. Anybody think it's something different? (pic attached)

Thanks,

Jonathan

[feldon30]

Hoo boy. It's Daconil (or Serenade) time. Past time in fact.

[barkeater]

Are you sure your fusarium wilt isn't actually early blight?

And yes, that picture is Septoria, and you need daconil. Mancozeb is best for early blight, although daconil will help.

[Jonathan_E]

Barkeater,

When it comes to diseases, I'm not sure of anything. But if you'll check the thread here where I posted pics of the plants I suspect of fusarium, you'll see why I think its fusarium. (just search fusarium).

I've never yet resorted to chemical antifungals. Kind of hate to do it, although I'm not religious about it.

[Suze]

Originally Posted by Jonathan_E

When it comes to diseases, I'm not sure of anything. But if you'll check the thread here where I posted pics of the plants I suspect of fusarium, you'll see why I think its fusarium. (just search fusarium).

I've never yet resorted to chemical antifungals. Kind of hate to do it, although I'm not religious about it.

I agree that the problem you posted in the other thread doesn't look like EB, because there are no lesions in those pics. Different plant or area of the garden? Agreed that your picture here in this thread appears to be septoria spot.

When you say "chemical", do you mean chemical = synthetic, or something else, as in you'd really rather not use anything on your plants? Just trying to understand where you're coming from.

In any case, active ingredients in Mancozeb are more or less manganese and zinc, but I should probably say it is not technically considered "organic". I'm not particularly advocating it one way or the other, other than to say in the past, I've ended up with slightly better control of fungal disease using both (in rotation) rather than just the Daconil.

[Jonathan_E]

Suze,

The two diseases are afflicting plants in different areas of the "garden". In fact, to say I have a garden is a bit of a misnomer. My yard is mostly a granite outcrop, so I have little bits and pieces of plantable space here and there. As someone said, if this country had been settled from west to east instead of the other way around, all of New England would be a national park.

At least the separate areas make it a little less likely that disease will spread easily, I suppose.

I have never used any anti-fungal remedies on my plants at all. I'm not hung up on everything being natural or organic, although I do have a general preference for that kind of tomato growing, at least in my own garden (commercial operations are a different matter).

I appreciate the suggestion about Mancozeb. What about Actinovate or other beneficial bacteria as fungal controls? Have you tried them?

best regards,

Jonathan

[Suze]

Originally Posted by Jonathan_E

My yard is mostly a granite outcrop, so I have little bits and pieces of plantable space here and there. As someone said, if this country had been settled from west to east instead of the other way around, all of New England would be a national park.

Misch also deals with that in his garden; and has to bring in soil, sometimes to have it wash away due to flooding. Sounds rather challenging. In my area, it's limestone for some people -- but I'm fortunate in just having the sand.

I appreciate the suggestion about Mancozeb. What about Actinovate or other beneficial bacteria as fungal controls? Have you tried them?

I have not tried Actinovate for treatment or prevention of foliar fungal disease. Perhaps Ami or someone else who might have used it could comment?

I have used Serenade in the past (on a few control plants as a test) and was not particularly impressed with the results.

I've also used cornmeal for powdery mildew (PM) on tomatoes and also cucurbits, and had very good results. However, I've found that it is not effective when applied to foliage for any fungal foliar diseases other than PM.

[amideutch]

I have nothing but good things to say about Actinovate. Have not lost one plant to disease yet and growers in our area have lost most of their plants to disease already. Since 1 July we have had miserable growing conditions with intermittent rain the whole time. This includes plants in containers and soil as well. Sprinkled in the hole during plant out and spayed my plants about once a week using 1/2 teaspoon per gallon of water and also added to my compost tea during the brew cycle and used as a foliar spray as well. A little bit goes along way. Also used Mycorrhizai in con★★★★★★★★ with the Actinovate on initial plant out. Ami

[Jonathan_E]

Thanks for the information, Ami.