Theses and Dissertations

ORCID

https://orcid.org/0000-0001-6583-6640

Advisor

Wilkerson, Teresa

Committee Member

Bararpour, Taghi

Committee Member

Zurweller, Brendan

Date of Degree

8-13-2024

Original embargo terms

Immediate Worldwide Access

Document Type

Graduate Thesis - Open Access

Major

Agricultural Life Sciences (Plant Pathology)

Degree Name

Master of Science (M.S.)

College

College of Agriculture and Life Sciences

Department

Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology

Abstract

Peanuts are an important legume crop cultivated in Mississippi with an annual production of 71 million kg per hectare. Southern blight (SB), caused by Athelia rolfsii, is a devastating disease resulting in significant losses to peanut production. Cultural practices may not adequately control diseases; therefore, the application of fungicides is important. Recently, the rapid growth of weed species has emphasized herbicide usage and studied weed interaction with SB. In this study, Athelia rolfsii isolates were collected from different counties to identify their biological characteristics and determine the in vitro efficacy in both 2022 and 2023. In the field trial, seven fungicides were applied in-furrow in both 2022 and 2023. Additionally, eight herbicides were applied at pre-emergence, post-emergence, and mid-post emergence along with the application of fungicides, Revytek, and Omega 500. The introduction of appropriate management practices has led to significant SB losses and an increased pod yield.

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