What do we call fungi that grow inside grass plants and help them tolerate insect feeding?

The correct term for fungi that grow inside grass plants and assist them in tolerating insect feeding is endophytic fungi. These fungi establish a symbiotic relationship with the host plant, residing within its tissues without causing any harm. In fact, they can enhance the plant's defense mechanisms against herbivorous insects by producing compounds that deter feeding, thus improving the plant's overall health and resilience.

Endophytic fungi can also contribute to nutrient uptake and stress resistance, giving the grass better survival chances in adverse conditions. This relationship is particularly important in agricultural and environmental contexts, as it can lead to healthier turf and reduced need for chemical pesticides. Understanding the role of endophytic fungi is crucial for effective turf management and for promoting sustainable agricultural practices.