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San Diego

never sprayed a tomato plant before, maybe a silly question, but if I use daconil, do you spray whole plant? Being from pumpkins, new growth never gets sprayed, but I would think it is hard not to spray whole tomato plant including flowers and new growth? Thanks, for the reply, Jim

3/22/2017 10:46:59 PM

San Diego

I need to spray today, anyone with experience know?

3/23/2017 11:54:44 AM

Central NY

Spray away!!

3/23/2017 12:58:16 PM

On top of Brush Mountain, Pa.

Spray entire plant.

3/23/2017 1:30:03 PM

San Diego

thank you!

3/23/2017 1:51:02 PM

Central NY

How's the black spots?... Getting worse?

3/23/2017 4:02:15 PM

Torrance, Ca.

I spray the whole plant but stay away form the top if its still growing Jim.

Yea, hows the black areas? Any better?

3/24/2017 4:47:30 PM

Oak Grove, Mn

I am hoping that you come up with a really good diagnosis of what that problem is. I have never seen that black on my tomato plants. It is only a matter of time since I find a new problem every week. In someways it almost appears similar to sunburn on pumpkin leaves. Is there any possibility that could be the issue?

3/24/2017 7:01:22 PM

San Diego

I will post some photos, I sprayed and the leaves seemed to keep spreading whatever it is to more leaves. Ugh! Not sure if it was already infected or not and spraying just brought it out. It looks like blight mostly, but some areas do have the black. Today I cut off 60% of plants, they look like a tall carrot, highly pruned lol. I sprayed what was left again with daconil like there was no tomorrow, see what happens. Bad part is I have two really nice mega blooms ready to go off, if plants were disease free, I would say watch out Chris! :) But we are not to optimistic, a bummer again for Joshua, but fingers crossed. I will post photos soon! Thanks for the help.

3/29/2017 12:39:13 AM

San Diego

I will post some photos, I sprayed and the leaves seemed to keep spreading whatever it is to more leaves. Ugh! Not sure if it was already infected or not and spraying just brought it out. It looks like blight mostly, but some areas do have the black. Today I cut off 60% of plants, they look like a tall carrot, highly pruned lol. I sprayed what was left again with daconil like there was no tomorrow, see what happens. Bad part is I have two really nice mega blooms ready to go off, if plants were disease free, I would say watch out Chris! :) But we are not to optimistic, a bummer again for Joshua, but fingers crossed. I will post photos soon! Thanks for the help.

3/29/2017 12:39:14 AM

I have used Companion and then alternated with Daconil with success. Spray the whole plant and do it as early in the day as possible. I would also consider starting a regular feeding of Biomin Calcium in liquid form. Have you had a stretch of really warm and humid weather? Maybe you have already posted pics, so I would have a look at those first. Maybe you have early blight alternaria? How far apart are your plants? Spacing helps to move air and allow sunlight to access all sides of plant, so 2 to 3 feet between plants. Do you use a ground drip irrigation system? Splashing off of the soil surface can transfer fungus and bacteria, but maybe you already avoid this issue. Do you compost your tomato plants or plant in the same area year to year? Try to rotate planting locations in the future. Since you have some nice blooms, I would try the fungicides and feeding liquid calcium and go light on watering. Also, be sure to clean any gloves or gardening tools to avoid disease spread. Sometimes, plants recover from these issues. Try to be patient.

4/3/2017 4:30:25 PM

I just looked over your photos. From the date of 3/9, your plants were exposed to 30/40 degree temps and then I saw the results on 3/19. Alternaria does show up on the lower mature leaves which seems to be on your lower ones. Try to remove those branches several inches above the soil surface and get rid of them. In the future when cool night time temps are in the forcast, you could place a cardboard box over the plant with a weight in case of wind over night then remove in the morning. Also, it may be a good idea to have a soil thermometer to be sure the overnight soil temps are 55 degrees F prior to transplanting. Tomatoes seem to like night time soil temps best at or above 55. Below is a link to describe tomato issues - http://vegetablemdonline.ppath.cornell.edu/DiagnosticKeys/TomLeaf/TomLeafKey.html

Hope this info helps.

4/3/2017 5:04:35 PM