How can I save my tomato plant?

The tiny leaves that grow in the area where a stem is growing out from the main stalk, , takes the strength from the plant. pinch them off as the plant grows and you may see a difference. I dust my plants with Diatomaceous earth once a week..also put it on the ground below the plant.

Here's a link to a site that might help. It's hard to tell what exactly is going on by the pictures, but I'd say you're dealing with either #11 (Early Blight) or #12 (Septoria Leaf Spot). Good luck!

http://www.saferbrand.com/articles/common-tomato-plant-problems-how-to-fix-them

too much high nitrogen fertilizers,high salt or bad watering practices-- blocks calcium uptake in plants causes low production w/lots of accelrated green growth, symptoms first develop on older leaves showing some necrotic spots also; Blossom end rot symptoms occur on both green and ripe fruits and is identified by water-soaked areas that gradually widen and mature into sunken, brown, leathery spots on the bottom end. In many cases, secondary pathogens, which appear as a black, fuzzy-like growth, attack the affected area and cause complete rotting of the fruit. Blossom end rot will not spread from plant to plant.Since this plant problem is physiological in nature, fungicides will not work as a control measure. We recommend the following:

1. Choose resistant vegetable varieties whenever possible.
2. Prevent problems by keeping soil evenly moist and by foliar spraying plants with a kelp or calcium solution.
3. Adding high levels of calcium — bone meal, oyster shell or gypsum — to the soil at planting time usually prevents this problem from developing.
4. A layer of mulch (straw, compost, grass ) will help conserve soil moisture during the hot, dry days of July and August.
5. Foliar applications of Liquid Calcium 5% (1-2 Tbsp/ gallon of water) can be used to correct or prevent deficiencies of this essential nutrient. For best results, combine with a natural surfactant to increase adhesion and spray leaves to the point of run-off.
6. Mulching plants will help conserve moisture and provide a more uniform water supply.
7. Avoid using high nitrogen fertilizers which accelerate vegetative growth and reduce the uptake of calcium by plants. A large selection of balanced organic fertilizers are available

Save your egg shells. After you rinse them out. Let them dry. Then brake them into pieces. Spread them around the base of your plant. Bugs "Do Not " like walking over them.

Thanks to each one for your input. Good ideas from all.