Gardening and Horticulture - tomato growing question

is it true that planting basil next to tomato plants keeps the bug away and that tomatos feed off carrots ?

I have not heard that one. I watch my tomatoes for bugs and treat then. I do know that tomatoes will pick up other flavors such as the heat from pepper plants. I am actually going to try planting some jalapenos near one of my tomatoes to see if I get a "salsa" plant.

i heard that basil keeps bugs away and helps them stay healthy but i guess it can't hurt to see if its true

Just a myth. Tomatoes aren't bothered by many pests although there are a few. You should be more concerned with disease prevention. Mulch the plants well and water from the bottom consistently.

so don't wet the leafs and when i water them only water at the base..

With no disrespect to any of the other posters, basil will help to repel tomato hornworm. It also attracts honeybees if you let it go to flower. Carrots are good with tomatoes. Here's some good and bad companions.
http://www.moonsweb.com/companions.shtml

Newt

at that site it said that nut trees are bad for tomatos,my neighbor has 2 walnut trees about 10 to 15 feet from my tomatos, is this bad?

Dsifer, are your tomatoes in pots? If they are 10' to 15' feet from the trunk they aren't in the ground, right? Maybe I'm seeing a large mature tree and it's just a young sprout or the plants are that far from the outer drip line. Walnuts give off juglone that inhibits the growth of most plants.
http://plantdiagnostics.umd.edu/level3.cfm?causeID=212

Newt

they are in the ground

Are they english walnut or black walnut? I know black walnut trees cause a lot of problems.

Dsifer, the black walnut gives off more juglone then the others. If your tomatoes are wilting, even after watering, then the tree is causing problems. Take a look here.
http://plantdiagnostics.umd.edu/level3.cfm?causeID=212

Newt

will my tomatos even grow in this case?i see little ones starting to grow and if they grow fully will they be safe to eat or will they just be rotton

I've never tried to grow tomatoes near a black walnut so I can't say for certain what will happen, but if you're already getting tomatoes, then it sounds like your plants will be ok. It can take up to 2 months before symptoms show in the plants. There are veggies that can tolerate the juglone and are safe to eat - squash, melon, beans and corn. The walnuts are also safe to eat, so eating the tomatoes will be safe.
http://ohioline.osu.edu/hyg-fact/1000/1148.html

Newt