Assess your understanding of Yellow Mosaic Disease, its symptoms, causes, and management in agriculture with this medium-difficulty quiz. Learn about the impact, transmission, and prevention strategies crucial for healthy crop production.
What is a common visible symptom of Yellow Mosaic Disease in legume crops like mung bean or soybean?
Explanation: Yellow Mosaic Disease typically causes yellow patches or a mosaic pattern on leaves, reducing photosynthesis. Wilting is more characteristic of root or vascular issues. Black spots suggest fungal infections, and white powdery growth is a sign of powdery mildew, not viral mosaic diseases.
Which type of organism is primarily responsible for causing Yellow Mosaic Disease in crops?
Explanation: Yellow Mosaic Disease is caused by a virus, typically a begomovirus affecting several legume crops. Bacteria, fungi, and nematodes can also infect plants but do not cause yellow mosaic symptoms specifically.
How is Yellow Mosaic Virus most commonly transmitted between healthy plants in the field?
Explanation: Whiteflies act as efficient insect vectors for Yellow Mosaic Virus, moving the virus from infected to healthy plants. The disease is not typically spread by water or wind, and seed-borne transmission is rare for this virus.
Which management practice is most effective in controlling the spread of Yellow Mosaic Disease in a field?
Explanation: Using disease-resistant crop varieties is one of the best management strategies for Yellow Mosaic Disease. Copper-based fungicides target fungi, not viruses. Overwatering and excess fertilizer do not prevent viral infection and can harm plant health.
What is a significant impact of Yellow Mosaic Disease on affected crops?
Explanation: Yellow Mosaic Disease typically leads to decreased yield and poor-quality seeds by damaging leaf tissue and weakening plants. It does not improve drought resistance or fruit sweetness, and while some viral diseases may delay flowering, reduced yield is the major concern.