Black stain root disease

Black stain root disease is a serious fungal condition affecting pine trees, caused by fungi like *Leptographium* species. It infects the roots and lower trunk, leading to black streaks or stains under the bark. The infection disrupts the tree’s ability to absorb water and nutrients, causing decline in health, thinning foliage, and eventually death if untreated. The disease spreads through beetles and infected wood, often in stressed or weakened trees. Management involves removing infected trees, reducing tree stress, and preventing beetle populations to protect healthy forests.