California Pepper Tree roots

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David Kehoe

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Looking for some help on figuring out if I can remove some roots from my California Pepper tree without killing the tree. The tree is about 40 feet high and these roots run from the base of the tree, go underground for a bit (about 10 feet) come to the surface for about 25 feet and then back underneath my house/fence. Any insight or advice is much appreciated. I will try to upload some photos when I get to work tomorrow.
 
Like many other species in the family Anacardiaceae, Brazilian pepper has an aromatic sap that can cause skin reactions (similar to poison ivy burns) in some sensitive people – although the reaction is usually weaker than that induced by touch of the closely related Lithraea molleoides, known in Brazil as "wild" aroeira (aroeira brava). Conversely, Schinus terebinthifolius is commonly known as "tame" aroeira (aroeira mansa).

In a paper on triterpenes, the ingested fruits are noted to have a “paralyzing effect” on birds.[10] The narcotic and toxic effects on birds and other wildlife has also been noted by others, e.g., Bureau of Aquatic Plant Management. The AMA Handbook of Poisonous and Injurious Plants reports that the triterpenes found in the fruits can result in irritation of the throat, gastroenteritis, diarrhea, and vomiting[11] Like most other members of the Anacardiaceae, Brazilian pepper contains active alkenyl phenols, e.g., urushiol, cardol, which can cause contact dermatitis and inflammation in sensitive individuals.[12][13] Contact with the “sap” from a cut or bruised tree can result in rash, lesions, oozing sores, severe itching, welts, and reddening and swelling (especially of the eyes).[14]

The burning of plant matter releases many airborne irritants, so is not an effective means of control. It is said to have a "mace-like" effect upon nearby people and is highly advised against.
 
When you say root pruning, does that include removing the roots that are on the surface as well as those that are going under the house/fence?

No, we maintain many HOA's here and frequently have to root prune peppers near foundations, patios and sidewalks. We use a carbide impregnated chain on a chainsaw and sever the root. It's quick and clean, the chain cost a little more than regular chain but you can cut thru the ground easily.
Jeff
 
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