curling tomatoe leaves?

planted a yellow heirloom in a container, outside. tons of sun, well watered, not too much wind. althought generally health, recently the lower leaves started curling, should i be concerned? there were some bugs (aphids?) which I picked off and which haven't returned. time to break out the antibug spray? how does neem work with tomatoes?
thanks in advance,
js
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    My tomatoes leaves are curling on the top of the plant. We have gotten a whole lot of rain in the past week and I am wondering if this may be the cause. Any thoughts on this. My garden is saturated and the bugs and weeds are having a field day. ------------ And now a word from our sponsor ------------------ Want to have instant messaging, and chat rooms, and discussion groups for your local users or business, you need dbabble! -- See http://netwinsite.com/sponsor/sponsor_dbabble.htm ----
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Tomato leaf roll is a common condition of minimum consequence. Aphids, OTOH, must be controlled if your plants are to thrive. Safer Insecticidal soap spray works, as does a simple, brisk spray of water. The water spray treatment needs to be repeated more often than the soap spray, but it/s free, save the water/s cost.
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A horticulturist friend of mine saw my tomato plants do the same thing about a month ago. He said it was either too much or too little water. I began watering less, and the curling stopped.

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