What are materials applied to plants to minimize water loss through transpiration called?

Materials applied to plants to minimize water loss through transpiration are known as antitranspirants. These substances work by forming a film over the leaf surface or by affecting the stomata, the pores on leaves that regulate gas exchange and moisture loss. By reducing the rate of transpiration, antitranspirants help plants maintain adequate water levels, especially in conditions where water stress is a concern.

In addition to their role in conserving water, antitranspirants can be beneficial in helping plants withstand drought conditions or recovery from transplant shock. They are particularly useful for crops and landscape plants, allowing for better survival and growth during unfavorable weather conditions.

Other materials mentioned, such as aerators, fertilizers, and insecticides, serve different purposes, and are unrelated to managing water loss through transpiration. Aerators improve soil aeration and root health, fertilizers provide essential nutrients for growth, and insecticides target pest control, but none of these directly impact the transpiration process like antitranspirants do.