Eurotiales

Eurotiales is an order of fungi within the class Eurotiomycetes, widely recognized in agronomy for its significant impact on crop quality and safety. These fungi are notorious for causing decay, mold, and rot in both field crops and stored agricultural products, often leading to substantial economic losses.

The most important genera within this order, from an agricultural standpoint, are Aspergillus and Penicillium. These pathogens are opportunistic and can infect plant tissues through physical damage or environmental stress. Many species are also significant producers of mycotoxins, which can accumulate in contaminated grains and fruits, posing a threat to human and animal food safety.

Various crops are susceptible to Eurotiales infection, including wheat, corn, legumes, oilseeds, and a wide variety of horticultural products. These fungi are particularly problematic in post-harvest environments where moisture content and temperature are not strictly controlled, allowing them to rapidly colonize stored commodities.

Key symptoms include the appearance of fuzzy, powdery, or felt-like fungal growth on plant surfaces, which can be green, blue-green, yellow, or black. Internal tissue breakdown, loss of germination viability in seeds, and the development of musty, off-odors are common signs that indicate the presence of these fungal pathogens.

Management strategies focus on preventive measures. Key practices include:

• ensuring appropriate drying of harvested products before storage;
• maintaining good aeration and temperature control in storage facilities;
• minimizing mechanical injury to crops during harvest and transport;
• implementing rigorous cleaning and sanitation protocols for all harvesting and storage equipment.