I by no means had black spots on the fruit earlier than. It may very well be both from the solar (sunburn on the fruit) or, extra possible, a dietary drawback. Generally an absence of calcium could cause dietary issues that have an effect on the fruit high quality and has an analogous look on apples (bitter pit) and pears (corky spot) rising in calcium-rich soils of the West.
I do know it sounds unusual, however calcium is mined fairly closely by some fruit timber in our calcium-rich soils. Attempt an software of compost apart from what you might be producing across the tree. Many composts are low in potassium as nicely however oftentimes excessive in nitrogen and phosphorus.
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