Is there any chance that these marks or burns from the neem oil soap and water picture below, because it has been blazing hot last week. I sprayed them at nite so I dont think so but just wanted to add that info. Well what I read 4 teaspoons per gallon baking soda per gallon added to my 2 tablespoons of soap and 2 table spoons of oil is considered fungiscide?

All that info in you name great ideal I added my zone to my name thx.

I see some blotches that look like burn.

Also , the color of foliage , w/purplish look might indicate some nutrition problem. I could be wrong.

Sey

Yes I believe it's from spraying in the hot sun.

I sprayed around 7-8 was nice and cool but around 9ish in Louisiana it was VERY hot. From what I read baking soda just changes the PH makes it inhospitable to fungis and I can add to my oil soap mix as preventitvie.

Is there a chance the sprayed mixture contributed to the appearance?

Sure there is a chance. Homemade spray concoctions such as you describe often do more damage than good and might be the cause of the large solid brown patches. But they aren't the primary issue, especially given the time of day you sprayed. The small blackish in pics 2 and 3 are what appear to be septoria or possibly bacterial spot. I can't tell for sure.

The small caterpillar is called a tomatoworm and contact sprays don't work on them. just pick them off and squish.

"what I read 4 teaspoons per gallon baking soda per gallon added to my 2 tablespoons of soap and 2 table spoons of oil is considered fungiscide?"

No and is a potentially very damaging mix. The author where you read this has confused the ingredients and apparently tried to come up with some sort of a cures-all recipe that is very risky. What was the source of this info?

1-2 T of Neem Oil to a gallon of water is a mild fungicide. It requires no additional ingredients. But it works as a preventative, not a cure once the disease exists on the plant. It will slow it down but not cure it. Is it the best fungicide? No. There are many commercial fungicides available, both organic and synthetic, that are far more effective.

1T of soap to 1 gallon of water is a mild contact-only pesticide for small insects such as aphids and some small beetles. Soap, in small amounts (1 tsp. max) added to other mixtures can act as a "sticker" (makes it stick to leaves better because it breaks the surface tension of the other ingredients) but it isn't usually required and soaps can be harmful as the coat the leaves and clog up the pores.

Adding oil is only adding an additional "sticker" and does more potential damage. If it is added to something it is only used at the rate of 1 tsp. or so to a gallon of water.

Baking soda alone in water (2T to a gallon) can work as a mild fungicide with certain diseases (like black spot on roses) but works only because it changes the pH of the leaf surface making it difficult for the spores to grow. But its benefits do not compare with a commercial fungicide.

So once again, remove as much of the severely damaged foliage as you can. Then if you don't wish to buy a commercial fungicide I'd suggest you use only the Neem oil mixed per the label instructions or1-2 T per gallon of water. Sprays are never applied in the direct sun or in the heat of the day. Early in the morning works best IMO.

Hope this is some help.

Dave

Thx For the info Dave I will just try spray before sun pops up that should'nt shock them. I'm learning alot thanks for all the info appreciate it. I will keep with neem and no baking soda.

Starts like this Ill update if neem fixs it if.

Too much sun and heat. Water and shade.

Check out this link and scroll down to the pics and detail on Septoria Leaf Spot.

http://www.extension.umn.edu/garden/diagnose/plant/vegetable/tomato/leavesspots.html

Dave

PS: and please ignore Yuan, our resident teenage troll and his pointless comments.

they call this guy my PR guy. I dunno.