Training
Where winters are mild, train fig trees to a single trunk,
open vase-type tree. The stool multi-trunk system is by far the
most frequently used in Texas.
The stool system is common where freezes occasionally kill the
upper part of the tree. Illustrate the two types of training
system.
Pruning
Normally figs are pruned very little. Do not prune mature
Celeste and Alma trees because this reduces the crop size. Texas
Everbearing produces a fair crop following heavy winter pruning.
To stimulate new growth, thin out older trees which grow very
little each year. Thinning also increases fruit size. Prune the
trees enough to stimulate approximately 1 foot of growth each
year. Remove all weak, diseased or dead limbs each dormant
season.
Irrigation
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.
Some useful information about dried fig