Herbicide Interactions with Insecticides
Clemson Extension Program Team
Crop injury can occur when an insecticide application predisposes a plant to phytotoxicity from a subsequent foliar herbicide application. However, these products when applied individually normally do not result in crop injury. These interactions are caused by a reduction in the crop’s ability to metabolize these pesticides and/or environmental conditions that result in plant stresses that impact crop growth and development. Typically, pesticide labels provide a warning to growers about these potential interactions and what pesticide product combinations should be avoided. This article discusses herbicide products that can cause crop injury if applied following an at-plant pesticide or applied in a tank mixture with another pesticide. The target audience is agronomic crop producers in South Carolina.
Land-Grant Press by Clemson Extension
Agronomic Crop Producers
Marshall MW, Mueller J. Herbicide Interactions with Insecticides. Clemson (SC): Clemson Cooperative Extension, Land-Grant Press by Clemson Extension; 2023 Jun. LGP 1168. https://lgpress.clemson.edu/publication/herbicide-interactions-with-insecticides/.