Extreme temperatures, rain, or wind can impact flower receptivity, decreasing.

Jul 31, Fruit drop (or nut drop) is often a natural occurrence. Trees may set large amounts of nuts in a season and some/most drop off naturally. Pecan nut drop (I'm assuming you are talking about pecans as you are in Mobile, Alabama) is also caused by weather. Very wet seasons in the late spring and early summer can cause part of a pecan tree's crop to fall. The same happens if the trees. May 18, The first period of nut drop occurs shortly after bloom when defective flowers drop from the tree.

The second occurs within a month or so after bloom which involves dropping pea-sized flowers which have not shed their jackets. Larger developed nuts that may have been fertilized may also drop during the second period. Almond pollination and fertilization can occur over a wide range of Estimated Reading Time: 5 mins. Oct 11, Chestnuts are mature when they fall naturally from the tree.

They ripen in September and October over a period of about two to four weeks. The nuts gain half of their final weight in the final two weeks before falling, so avoid knocking them from the tree.