Cork location is a common apple tree sickness connected with an absence of calcium. Cork place appears like discolored dimples on apples. This fruit disease has an effect on the looks of apples. Blossom stop rot looks like a slimy black lesion on the blossom end from the fruit. This https://zanedxpfw.bloggip.com/32349420/the-fact-about-calcium-nitrate-for-sale-can-tho-that-no-one-is-suggesting