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What does Clavibacter Tritici cause?

Published in Plant Pathology 2 mins read

Clavibacter Tritici is a bacterial pathogen that causes wheat streak mosaic disease (WSMV).

What is Wheat Streak Mosaic Disease?

Wheat streak mosaic disease is a serious disease that affects wheat and other small grain crops. It is characterized by:

  • Mosaic patterns: Alternating light and dark green stripes on the leaves.
  • Stunted growth: The plants are shorter than healthy plants.
  • Reduced yield: The disease significantly reduces the amount of grain produced.
  • Yellowing: The leaves may turn yellow and eventually die.

How is WSMV spread?

The disease is spread by wheat curl mites, which are tiny insects that feed on wheat plants. The mites carry the bacteria and transmit it to healthy plants when they feed.

What are the symptoms of WSMV?

The symptoms of WSMV can vary depending on the variety of wheat and the environmental conditions. However, the most common symptoms include:

  • Mosaic patterns on leaves: These patterns are caused by the disruption of chlorophyll production in the leaves.
  • Stunted growth: Plants infected with WSMV are often shorter and weaker than healthy plants.
  • Reduced yield: The disease can significantly reduce the amount of grain produced.
  • Yellowing: The leaves may turn yellow and eventually die.

How can WSMV be managed?

There is no cure for WSMV, but there are several ways to manage the disease:

  • Resistant varieties: Planting wheat varieties that are resistant to WSMV is the most effective way to control the disease.
  • Crop rotation: Rotating wheat with other crops can help to reduce the population of wheat curl mites.
  • Control of mites: Insecticides can be used to control wheat curl mites.
  • Sanitation: Removing infected plants and debris can help to reduce the spread of the disease.

Conclusion

Wheat streak mosaic disease is a serious threat to wheat production. Understanding the disease and its management strategies is essential for protecting crops and ensuring food security.

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