Can a glyphosate weed killer kill a sequoia tree?

It would not likely be the primary reason for the death of a tree. It can create wounding in tender bark on trunks or exposed flare roots but these wounds could be overcome by an otherwise healthy tree. read more

It can create wounding in tender bark on trunks or exposed flare roots but these wounds could be overcome by an otherwise healthy tree. It can translocate through volatization in some instances and damage leaves but again trees will overcome this. And likewise in the case of spray drift. These stresses in conjunction with other diseases, weather conditions or insects could kill a tree. But alone Glyphosate is unlikely to kill a tree. read more

Tree roots in the area can take up some of this chemical, either by contact with the roots of the dying plant or by directly taking up residual glyphosate from the soil. Effect on Tree Health Glyphosate can significantly damage the overall health of a tree that absorbs it into its roots. read more

Glyphosate is an aminophosphonic analogue of the natural amino acid glycine (NH2CH2COOH). Glyphosate kills plants by interfering with the synthesis of the aromatic amino acids phenylalanine, tyrosine and tryptophan. It inhibits the enzyme, 5-enolpyruvylshikimate-3-phosphate synthase , which is found only in plants and micro-organisms. read more