I have a grapefruit tree in my backyard. The leaves are covered with funnel-like structures and the fruit have raised bumps. What is the problem?
Citrus scab symptoms on leavesThis could be citrus scab. The leaves often have funnel-like structures in the leaves in the early stages and eventually raised scabs or bumps on the fruit. As a homeowner, you don’t need to be too concerned because this fungus disease does not damage the fruit quality. Citrus scab symptoms on orangeSevere cases of this fungus disease can be treated with an application of copper two to three weeks after petal fall and again in two to three weeks.
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