What is a primary characteristic of neonicotinoid insecticides?

Neonicotinoid insecticides are particularly well-known for their effectiveness in controlling sucking insects, such as aphids, whiteflies, and mealybugs. This effectiveness stems from their ability to mimic nicotine, affecting the central nervous system of insects and leading to paralysis and death. As a result, they are a favored option for pest management in various agricultural and horticultural settings.

The characteristic of being systemic is significant, as it allows these insecticides to be absorbed through the plant’s roots and transported throughout the plant tissues. This property is crucial for managing pests that feed on the sap of the plant, as it ensures that the insect comes into contact with the pesticide when feeding.

Neonicotinoids have shown variable effectiveness against a range of pests, and they are not specifically labeled as weak against beetles in general. While they can be used effectively against some beetle species, their primary reputation is for dealing with sucking insects. Additionally, they are indeed capable of being applied via foliar methods, which expands their application flexibility.