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ARS Home » Southeast Area » Stoneville, Mississippi » Southern Insect Management Research » Research » Publications at this Location » Publication #396527
Research Project: Insect Control and Resistance Management in Corn, Cotton, Sorghum, Soybean, and Sweet Potato, and Alternative Approaches to Tarnished Plant Bug Control in the Southern United States

Location: Southern Insect Management Research

Title: Evaluation of cotton cultivar and at-plant nematicide application on seasonal populations of reniform nematode

Author
item CROW, WHITNEY - Mississippi State University
item CATCHOT, ANGUS - Mississippi State University
item DODDS, DARRIN - Mississippi State University
item GORE, JEFFREY - Mississippi State University
item COOK, DON - Mississippi State University
item ALLEN, THOMAS - Mississippi State University

Submitted to: Agronomy
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/25/2021
Publication Date: 10/27/2021
Citation: Crow, W.D., Catchot, A.L., Dodds, D., Gore, J., Cook, D.R., Allen, T.W. 2021. Evaluation of cotton cultivar and at-plant nematicide application on seasonal populations of reniform nematode. Agronomy. 11(11):2166. https://doi.org/10.3390/agronomy11112166.
DOI: https://doi.org/10.3390/agronomy11112166

Interpretive Summary: The reniform nematode is a common, widespread pest of cotton across the southern United States. Trials were conducted during 2017 at three non-irrigated locations in Mississippi within fields with a history of cotton production and documented economically-damaging reniform nematode populations to evaluate the response of two cotton cultivars to in-furrow nematicides. Two treatments (aldicarb and 1,3-dichloropropene) along with a non-treated control were applied for nematode suppression. No significant interactions between cotton cultivar and nematicide were observed. However, treatment with 1,3-dichloropropene produced greater plant biomass, and plant height compared to aldicarb-treated cotton and the nontreated. Nematode densities were suppressed with the use of 1,3-dichloropropene compared to aldicarb and the non-treated control. The use of 1,3-dichloropropene resulted in positive early-season plant growth responses; however, these responses did not translate into greater yield.

Technical Abstract: The reniform nematode, Rotylenchulus reniformis (Linford and Oliveira), remains a common, widespread nematode pest of cotton across the southern United States. Trials were conducted during 2017 at three non-irrigated locations: one location in Hamilton, MS, and two locations in Tchula, MS, in field settings with a history of cotton production and documented economically-damaging reniform nematode populations.Trials were designed to evaluate the response of two cotton cultivars to in-furrow nematicides consisting of aldicarb, 1,3-dichloropropene, and a non-treated control applied for nematode suppression. No significant interactions between cotton cultivar and nematicide were observed. However, treatment with 1,3-dichloropropene produced greater plant biomass, and plant height compared to aldicarb-treated cotton and the nontreated. Nematode densities were suppressed with the use of 1,3-dichloropropene compared to aldicarb and the non-treated control. The use of 1,3-dichloropropene resulted in positive early-season plant growth responses; however, these responses did not translate into greater yield.