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Related Experiment Video

Updated: Jul 12, 2026

Measuring Rates of Herbicide Metabolism in Dicot Weeds with an Excised Leaf Assay

Measuring Rates of Herbicide Metabolism in Dicot Weeds with an Excised Leaf Assay

Published on: September 7, 2015

Herbicide (2,4-d) increases insect and pathogen pests on corn.

I N Oka, D Pimentel

Science (New York, N.Y.)

|July 16, 1976

Summary

The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) increased corn pests like aphids and borers. Higher protein levels in treated corn may have fueled this pest growth.

Area of Science:

Agricultural Science
Entomology
Plant Pathology

Background:

Herbicide use in agriculture is widespread.
Understanding non-target effects of herbicides is crucial for sustainable farming.
Corn is a major global crop susceptible to pests and diseases.

Purpose of the Study:

To investigate the impact of 2,4-dichlorophenoxyacetic acid (2,4-D) on corn pest abundance.
To explore the relationship between 2,4-D exposure, corn plant protein levels, and pest proliferation.

Main Methods:

Field study comparing corn exposed to 2,4-D herbicide with unexposed control groups.
Quantification of key corn pests: corn leaf aphids, European corn borers, and southern corn leaf blight.
Analysis of protein content in corn plants subjected to varying 2,4-D dosages.

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A Rapid and Efficient Method for Assessing Pathogenicity of Ustilago maydis on Maize and Teosinte Lines

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Published on: January 3, 2014

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Last Updated: Jul 12, 2026

Measuring Rates of Herbicide Metabolism in Dicot Weeds with an Excised Leaf Assay

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A Rapid and Efficient Method for Assessing Pathogenicity of Ustilago maydis on Maize and Teosinte Lines

A Rapid and Efficient Method for Assessing Pathogenicity of Ustilago maydis on Maize and Teosinte Lines

Published on: January 3, 2014

Main Results:

Significantly higher populations of corn leaf aphids and European corn borers were observed on 2,4-D treated corn.
Southern corn leaf blight incidence was also greater in herbicide-exposed corn.
Corn plants treated with 2,4-D exhibited elevated protein levels compared to controls.

Conclusions:

2,4-D herbicide exposure can lead to increased abundance of specific corn pests.
Elevated plant protein levels resulting from 2,4-D treatment may create a more favorable environment for pest development.
These findings highlight potential indirect ecological effects of herbicide application in corn production.