See current recommendations for chemical control measures. Anthracnose Fruit Rot is another fungal disease, caused by Colletotrichum gloeosporioides . This fungus infects blueberries, apples, strawberries, tomatoes, and many other fruits and vegetables. Anthracnose can be a very serious disease on fruit, but can also cause disease on twigs and fruiting spurs. It is favored by warm, humid weather.
Infection can occur any time between blossom and ripening.
Usually fruit is infected while it is forming, and the fungus remains dormant until the fruit begins to ripen. The first fruit symptom , seen when the ripening fruit is beginning to turn blue, is a soft, sunken area, usually on the blossom end of the fruit. If the weather is humid, the spots will produce bright pink or salmon-colored slimy spots, which are the spores. The berries can look completely healthy until after harvest, when they can develop this disease. Rarely, the fungus will infect the stem, and cause a stem canker.