Question
The top leaves of the tomatoe plants are disappearing.  Only the stem and the green tomatoes are left.  I live in the Western NYarea. Plants otherwise look healthy and are growing well.What is happening.  Should I use Sevin on them?  Thanks for your help..

Answer
i'm in southern NJ.
examine under the leaves for a bug or other sign that it is indeed a bug pest problem before spraying. it could be a deer or rabbit problem.
you could take a sample (part of the plant) to a local garden center/nursery for them to examine.  to be certain snip off a small section of a branch w/damage on it, seal it in a plastic bag, and take it to your local garden center for ID. if they aren't sure what it is go to another garden center that does. it's not wise to just spray when you see bugs on plants. integrated pest management(IPM) is the big buzz-word in pest control in the new millenium. 1st you have to ID the problem pest so you know how to best get rid of it. chemical pesticides are necessary sometimes, but sometimes they do more harm than good. usually it is not good to indiscriminately spray all bug infestations. many bugs(over 99%) are actually beneficial. ID the problem pest 1st.
if you do spray, sevin is a good choice for bugs on tomato plants. just make sure you wash the produce before eating them.
hope this helps.
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good luck
rick