Description
Alternaria fruit spot
Alternaria fruit spot, also known as Alternaria alternata, is a fungal disease that causes black spots and fruit rot on pomegranates:
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Symptoms
Small, reddish-brown or black spots appear on the fruit, which can coalesce into larger patches. The fruit may also be lighter in weight and have a slightly off-color rind. In later stages, the arils may decay and turn brown, and the fruit may shrivel.
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On leaves
Small, reddish-brown or black spots appear on the leaves, surrounded by a green yellow halo. The spots can grow larger and cause the leaves to turn chlorotic and fall off prematurely.
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When it occurs
Infections often start in the orchard after rain during flowering and early fruit development.
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How to control it
For 1 liter of water 5ml Liquid required
for 1 lit water =5ml em solution
EM Solution = 1lit
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Factors that affect itTrees with dense canopies and large, dark-green leaves are more resistant to Alternaria alternata than trees with transparent canopies and small, light-green leaves.
Symptoms (common)
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Small reddish brown circular spots appear on the fruits.
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As the disease advances these spots, coalesce to form larger patches and the fruits start rotting.
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The arils get affected which become pale and become unfit for consumption.
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