Your figs split drop problems most likely come from uneven watering during the ripening season. Big swings between dry and wet soil cause the fruit to crack open or fall before they're ripe. Steady moisture is the key fix for both issues.
I lost half my fig crop one summer to splitting after a week of drought followed by heavy rain. The figs cracked open overnight and wasps moved in within hours. That painful lesson taught me to keep the water consistent no matter what the weather does.
UC Davis research explains why fig fruit splitting happens this way. The fruit flesh expands when water floods in after a dry spell. The skin can't stretch fast enough to match. It cracks open like an overfilled water balloon. Ripe and near-ripe figs suffer most.
Premature fig drop happens when stress triggers the tree to shed developing fruit. Drought stress is the most common cause. The tree cuts its losses by dropping fruit to save water for its own survival. Heavy fruit loads during heat waves trigger the same response.
Figs need 1 to 1.5 inches (2.5 to 4 centimeters) of water each week during fruit development. This amount keeps soil moist without waterlogging. Measure rainfall and add irrigation to make up any shortfall. The 90-day ripening period from fruit set to harvest needs the most attention.
Drip irrigation gives the most control over soil moisture. Set up a slow drip line around the drip zone under your tree canopy. Run it for an hour every other day during dry spells. This steady supply prevents the drought-flood cycles that cause splitting.
Mulch helps hold moisture in the soil between waterings. Spread 3 to 4 inches of wood chips or straw from the trunk to past the drip line. The mulch slows water loss and keeps roots cooler in summer heat. Cooler roots mean less stress and fewer dropped figs.
Check soil moisture before you water instead of watering on a fixed schedule. Stick your finger 2 inches into the soil near the drip line. Water if it feels dry at that depth. Skip watering if it still feels damp. This simple test prevents both over and under watering.
Rain can trigger splitting even with good soil moisture. A sudden heavy rain floods the fruit with more water than it can handle. Some growers cover ripening figs with plastic during rainy spells. Others pick figs a day or two before full ripeness to beat the rain.
Certain varieties split more than others. Brown Turkey and Celeste resist cracking better than thin-skinned types. Try a crack-resistant variety if splitting ruins your harvest each year. The right variety paired with steady water solves most splitting problems.
Stop losing figs to splits and drops by keeping your watering steady through the season. Drip irrigation and mulch make the job easier. Your tree will reward consistent care with intact fruit that ripens on the branch instead of rotting on the ground.
Read the full article: Growing Figs: Expert Advice for Thriving Trees