By Spy Uganda
Passion fruit grows in tropical and subtropical climates. Purple and white blooms appear on the passion fruit vine in warm weather, followed by tangy, fragrant fruit that ripens primarily in summer and fall. Passion fruit turns from green to dark purple as it ripens, then falls on the ground, where it is gathered.
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But Why Does Passion Fruit Rot?
Passion fruit is affected by several diseases, many of which can cause passion flower fruit rot. Diseases that cause rotten passion fruit are often the result of weather – primarily humidity, rain and high temperatures. Although passion fruit requires ample water, excessive irrigation can cause disease.
Avoiding diseases that cause passion flower fruit rot involves several steps, including careful pruning to increase ventilation, thinning to prevent overcrowding, and repeated application of fungicide, especially during warm, rainy weather. Prune passion vine only when the foliage is dry.
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The most common reasons for rotting passion flower fruit comes from the following issues:
Anthracnose is one of the most common and most destructive passion fruit diseases. Anthracnose is prevalent during hot, rainy weather and results in leaf and twig wilt and leaf loss. It can also cause rotten passion fruit, recognized initially by oily-looking spots. The spots have a corklike surface and may display dark lesions and a slimy orange mass that becomes soft and sunken as the fruit continues to rot.
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Scab (also known as Cladosporium rot) affects immature tissue of branches leaves, buds and small fruit, which displays small, dark, sunken spots. Scab becomes more prominent on larger fruit, turning brown and corklike in appearance as the disease progresses. Scab generally affects only the outer covering; the fruit is still edible.
Brown spot – There are several species of brown spot disease, but the most common are Aternaria passiforae or Alternaria alternata. Brown spot causes sunken, reddish-brown spots that appear when the fruit is mature or halfway mature.
