What is one primary cause of Fusarium infection in soybeans?

What is one primary cause of Fusarium infection in soybeans?

• A. Pest invasion
• B. Seedling stress
• C. Excessive moisture
• D. High fertilizer application

Answer: (B)

One primary cause of Fusarium infection in soybeans is seedling stress. Fusarium species are soilborne pathogens that particularly target young and vulnerable plants, often taking advantage of weakened seedlings that are already under stress. This stress can be caused by various factors such as poor soil conditions, inadequate water availability, or environmental extremes. When seedlings are stressed, they are more susceptible to infection, leading to diseases like Fusarium wilt.

While excessive moisture can contribute to conditions favoring Fusarium growth, it is primarily the health and vigor of the seedlings that determine their susceptibility to infection. Seedling stress is a direct indicator of the plant’s overall health, making it a more specific primary cause of Fusarium infection compared to other options.