Keys to Cankers

Trees Are Key
Let's discuss "Keys to Cankers." We'll look at a category of damage that can be biotic or abiotic. One of the keys is to not transport citrus trees or plant material from areas of concern (also because of citrus greening). Please don’t bring a lemon, lime, or orange tree back from a visit outside of Texas.

Species Spotlight
The Black Walnut Juglans nigra is also referred to as Eastern Black Walnut. This deciduous Texas Native is a large tree to 100 feet tall and a trunk to 3 feet or more, with a straight stem often clear of branches for half of its height, and an open, rounded crown of foliage. Black walnut occurs in East Texas on rich bottomlands and moist fertile hillsides, as far west as the San Antonio River.