Which nuisance weed causes blisters, rashes, and itching for humans, but can be controlled by treatments of glyphosate or triclopyr?

Poison ivy is known for causing skin irritation in humans, including blisters, rashes, and itching, due to the presence of an oil called urushiol. This plant is common in many areas and poses a significant nuisance for those who come into contact with it.

Glyphosate and triclopyr are effective herbicides for controlling various types of vegetation, including poison ivy. Glyphosate is a systemic herbicide that inhibits a specific enzyme pathway found in plants, while triclopyr is particularly effective against woody plants and vines. Both can disrupt the growth of poison ivy and ultimately lead to its demise, making them suitable choices for managing this specific nuisance weed in right-of-way settings.

In contrast, the other choices do not appropriately align with the characteristics associated with poison ivy, particularly in terms of human health impacts and the suitability of glyphosate or triclopyr for control.