Flower and fruit dropping is a common problem in guava cultivation and can greatly reduce yield if not managed properly. Many guava farmers notice that flowers fall before setting fruit or young fruits drop at an early stage. This happens due to several reasons such as stress, nutrient imbalance, poor pollination, pests, diseases, and unfavorable weather. With proper care and timely practices, flower and fruit dropping in guava can be controlled to a large extent.
One of the main causes of flower and fruit drop is moisture stress. Guava trees require regular and adequate water, especially during flowering and early fruit development. Lack of water weakens the tree and causes it to shed flowers and young fruits. Farmers should ensure timely irrigation during dry periods. At the same time, excess water and waterlogging should be avoided, as they damage roots and create stress. Mulching around the base of the tree with dry leaves, straw, or crop residues helps conserve soil moisture and reduces stress.
Nutrient deficiency is another important reason for dropping. Guava trees need balanced nutrition for healthy flowering and fruit setting. Deficiency of nitrogen, potassium, and micronutrients like boron and zinc often leads to flower and fruit drop. Regular application of recommended fertilizers and organic manures improves tree strength. Foliar sprays of micronutrients during flowering stage are very helpful in improving fruit retention. Applying well-decomposed farmyard manure also improves soil health and nutrient availability.
Poor pollination can also cause flowers to drop without forming fruits. Rainy or very hot weather during flowering affects pollination. Maintaining a healthy orchard environment and avoiding pesticide sprays during full flowering helps protect pollinating insects. In small orchards, good plant health itself supports better pollination.
Weather conditions play a major role in guava fruit retention. Sudden temperature changes, strong winds, heavy rains, or drought can cause stress to the tree. While weather cannot be controlled, farmers can reduce its impact by maintaining proper nutrition, irrigation, and drainage. Windbreaks around orchards help protect trees from strong winds.
Pest and disease attack also leads to flower and fruit drop. Insects like fruit flies, aphids, and thrips weaken the plant and damage flowers. Diseases affecting leaves, roots, or fruits also cause stress. Regular monitoring of the orchard and timely control of pests and diseases help reduce dropping. Integrated pest management practices should be followed instead of excessive chemical spraying.
Pruning and canopy management are equally important. Overcrowded branches reduce air circulation and sunlight, leading to weak flowering. Proper pruning after harvest helps maintain a balanced canopy and encourages healthy new shoots, which bear flowers and fruits. Removing dry, diseased, and weak branches reduces competition for nutrients.
The use of plant growth regulators and specific nutrient sprays during flowering and early fruit set stage has shown good results in reducing flower and fruit drop. These should be applied carefully and at the recommended stage for best results.
In conclusion, flower and fruit dropping in guava is mainly caused by stress due to water shortage, nutrient imbalance, pests, and unfavorable weather. By providing regular irrigation, balanced nutrition, proper pruning, pest control, and good orchard management, farmers can reduce dropping and improve fruit yield and quality in guava orchards.
