Pesticides are commonly used in modern
agriculture and are important
for global food security. However, postapplication losses due to degradation,
photolysis, evaporation, leaching, surface runoff, and other processes
may substantially reduce their efficacy. Controlled-release formulations
can achieve the permeation-regulated transfer of an active ingredient
from a reservoir to a target surface. Thus, they can maintain an active
ingredient at a predetermined concentration for a specified period.
This can reduce degradation and dissipation and other losses and has
the potential to improve efficacy. Recent developments in controlled-release
technology have adapted the concepts of intelligence and precision
from the pharmaceutical industry. In this review, we present recent
advances in the development of controlled-release formulations and
discuss details of the preparation methods, material improvements,
and application technologies.