Tropical & Subtropical Fruits

Physiological Disorders

Fruit Drop
Citrus drops flowers and fruits at different stages as a natural means of adjusting to it resources. These are normal and may not affect the yield. Pre-harvest drop of well grown fruits prior to maturity is a serious problem reducing the yield.
The main causes may be

• Climatic factors
• Improper water management
• Lack of nutrition
• Relation of seed to fruit drop.
Control

• Spraying 10 ppm 2, 4-D 2 months before harvesting. Fruit drop may be due to presence of pests and diseases also which can be controlled by spraying 1 % Bordeaux Mixture.