Sooty mold is a common issue on lemon-cravo (Citrus × limonia) leaves, caused by the growth of opportunistic fungi on the sugary secretions (honeydew) left behind by sap-sucking insects such as scale insects, aphids, and whiteflies. This dark fungal layer covers the leaf surface, reducing the plant’s ability to photosynthesize and hindering its development. Initially, sooty mold appears as scattered dark spots, but over time, it forms a thick black crust that interferes with leaf respiration. Severely affected plants exhibit stunted growth, yellowing leaves, and decreased fruit production. Additionally, the mold can spread to branches and fruits, affecting harvest quality. Effective control of sooty mold involves eliminating its primary cause: the insects that produce honeydew. Natural methods, such as introducing ladybugs and lacewings to prey on scale insects and aphids, help reduce the disease’s incidence. Applying horticultural oils or plant-based extracts can remove the fungal crust without harming the plant. Maintaining a balanced environment and regularly monitoring leaves are essential to preventing infestations and keeping the lemon-cravo tree healthy and productive. Environmental Damage | Agriculture | Vertical | Illness | Brazil
High Resolution JPEG Picture of Sooty mold is a common issue on lemon-cravo (Citrus × limonia) leaves, caused by the growth of opportunistic fungi on the sugary secretions (honeydew) left behind by sap-sucking insects such as scale insects, aphids, and whiteflies. This dark fungal layer covers the leaf surface, reducing the plant’s ability to photosynthesize and hindering its development. Initially, sooty mold appears as scattered dark spots, but over time, it forms a thick black crust that interferes with leaf respiration. Severely affected plants exhibit stunted growth, yellowing leaves, and decreased fruit production. Additionally, the mold can spread to branches and fruits, affecting harvest quality. Effective control of sooty mold involves eliminating its primary cause: the insects that produce honeydew. Natural methods, such as introducing ladybugs and lacewings to prey on scale insects and aphids, help reduce the disease’s incidence. Applying horticultural oils or plant-based extracts can remove the fungal crust without harming the plant. Maintaining a balanced environment and regularly monitoring leaves are essential to preventing infestations and keeping the lemon-cravo tree healthy and productive. [2202152413] stock photo
