Lemon grass (Elionurus)

Elionurus citreus is a perennial grass species belonging to the Poaceae family. The plant is well-known for the distinctive citrus fragrance emitted by its foliage, which contains volatile oils, giving it a unique profile among forage grasses.

Originating from the tropical and subtropical regions of South America, this grass is naturally adapted to savannah environments. It is highly resilient to open field conditions and can thrive in regions characterized by distinct dry and rainy seasons.

The plant requires well-drained soils to prevent root asphyxiation. It shows a significant preference for sunny locations and is capable of maintaining growth under moderate temperatures, although it exhibits high drought tolerance throughout its vegetative period.

Agricultural management involves careful seedbed preparation to ensure uniform establishment. While it is hardy, young plants benefit from controlled weed management during the first few weeks to ensure they develop robust root systems without excessive competition.

In farming practices, this species is utilized primarily for grazing and land stabilization. Its chemical composition makes it an interesting subject for studies regarding natural repellents, as the aromatic properties may affect how herbivores interact with the stand.

The main threats to Elionurus citreus stands are soil-borne pathogens that thrive in stagnant water conditions. Root rot is a common issue if the soil texture does not allow for efficient drainage during the monsoon period.

Insect pests such as grasshoppers and aphids can affect foliage density. Integrated pest management strategies, focusing on maintaining strong, healthy plants, are usually sufficient to prevent significant economic damage to the forage yield.