The family of sac fungal species Mycosphaerellaceae presents a danger to numerous plants such as beets, quinoa, spinach, cannabis, eucalyptus, and others. Most of the diseases caused by them affect the above-ground organs of plants, lead to leaf spotting and premature drying. They persist on plant remains, spread by air and water droplets, and develop in warm but humid weather. Diseases caused by these fungi can lead to significant yield losses, however, they may not appear every year.
Mycosphaerellaceae
Signs of damage
- The appearance of yellow, white, or reddish-to-purple spots;
- Necrosis or chlorosis;
- Yellowing of leaf plates;
- After that, the infection may descend into the petioles of the leaves;
- The affected plant loses its foliage;
- The fruits gets infected as well.
How to prevent
Weather conditions catalyze the spread of disease. The majority of these leaf-spotting plant pathogens cannot develop at a temperature below 59°F (15°C). On the other hand, Mycosphaerellacae actually has no maximum temperature limit and can withstand very high temperatures.
Still, moisture is the most crucial factor that provokes the diseases of the Mycosphaerellaceae family. Infection mainly occurs only with sufficient moisture on the leaf surface so that you may use it as a controlling factor. Growing resistant varieties can prevent disease, but it does not provide any guarantees.
Heal
Take measures as soon as you notice any symptoms – the slightest delay reduces the chances of curing. Like any fungal disease, the most effective treatment method is to apply fungicides. This should be done as soon as possible as the disease spreads quickly.
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