Give special attention to soil moisture management
in fig culture. Most fig tree roots are close to the soil surface and can easily
dry out. Figs are very susceptible to soil-borne nematodes that feed on small
roots and reduce water movement into the tree. For these reasons, apply
water to the trees as drought develops. Slight leaf wilting in the afternoon is
a good indication of water stress. Mulching with straw or grass clippings helps
maintain uniform soil moisture and reduces weed competition for available soil
water. Water stress frequently causes premature fruit drop of Texas fig
varieties which do not have true seeds. This problem is very common in hot dry
areas when the fig tree is grown in shallow soil and roots are nematode infested.
Do not overeater in areas of poor drainage. This forces oxygen out of the
soil and the tree is injured or killed. Good water management, including regular
irrigation and mulching, helps maintain tree health and vigor and reduces fruit
drop. Factors influencing a fig tree's susceptibility to cold injury are
related to the tree's entrance into dormancy. A mature tree which has lost all
of its leaves and becomes totally dormant can withstand much cooler temperatures
than a rapidly growing tree at the time of first frost. Reduce irrigations
in the fall of the year to reduce growth and encourage the onset of dormancy.
A fully dormant fig tree can withstand temperatures as low as 10 degrees F. In
north Texas, plant figs along the south side of a building to help reduce freeze
damage. Place straw mulches over the base of the tree to insulate warm
soil temperature during freezes and prevent killing the crown of the tree.
When trees or limbs freeze, give the tree ample time to grow before removing the
frozen limbs. Then, new wood can be produced.
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