A. All of the cases that I have seen of fig fruits drying out on the tree have been from a lack of water getting to the fruits. This can be from a lack of applied water, plugging drip emitters, damage to the tree trunk restricting water to the fruits, or an increase in tree size without the application of more water.
The first
response a fig tree has to inadequate amounts of water is for the fruits to
shrivel. This typically leaves the rest of the tree unaffected. The leaves look
the same; growth appears to be normal but usually with a smaller or open
canopy.
A fig tree
receiving enough water will have a dense canopy. Oftentimes the canopy is so
full you are unable to see through it.
Fig fruits are full of water. The tree must receive adequate amounts of water and at the right time to produce fruit like this. |
Not enough
water to a fig tree results in a more open canopy. It is common for fig trees
receiving enough water to grow 6 or 7 feet in one season.
My
suspicion is inadequate water. Trees get bigger each year. You either have to
add more emitters, increase the size of the emitters or add more minutes to the
run time. I would focus on this rather than to water more frequently.
As a test,
try supplementing the water the tree gets by adding water with a hose once a
week. Create a basin under the canopy, level, about five feet across and
several inches deep. Fill this basin once a week.
Also figs
do much better if four inches of wood mulch is applied under the canopy in a
circle around the trunk with a diameter of at least six feet.
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