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As has been noted by numerous residents of the state of New Hampshire (and other states), our pines have been dropping their needles during this summer instead of their normal time- in the fall. Typically, this is due to either some environmental factor (e.g., drought) or disease (e.g., needle cast. Aug 27, If a pine tree is severely dehydrated, it may shed some or all of its needles in an attempt to survive. The fewer needles a pine tree has, the less water it needs.
Normally, you’ll discover the needles turning brown on a dehydrated pine tree first.

Assuming the pine tree doesn’t get an adequate amount of water, the brown needles will die and fall off. Fungal Disease Can Also Cause Reviews: 2. Jun 19, Water stress – A pine tree dying from the bottom up might actually be a pine tree drying from the bottom up. Water stress in pines can cause needles to die. Lower branches may die from water stress in order to prolong the life of the rest of the tree. Prevent dead needles on lower pine branches by preventing water treegrind.clubted Reading Time: 3 mins.