Sun-grown trees die earlier from the stress and diseases common in these fields. 和 Sun-grown trees die earlier from the stress and diseases commonly in these fields. 的差別在哪裡？如果不好說明，請提供一些例句。

1) This means the diseases are common in the fields
2) This means it is common for the trees to die earlier

Hope that helps! The second one is also somewhat unnatural. Normally you would say “Sun-grown trees commonly die...”