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- Title
Maize tolerance to Spodoptera frugiperda (J. E. Smith) leaf damage and insecticide application.
- Authors
Hernandez-Trejo, Antonia; Lopez Santillan, Jose Alberto; Estrada-Drouaillet, Benigno; Reséndiz Ramírez, Zoila; Varela Fuentes, Sóstenes Edmundo; María Coronado-Blanco, Juana; Malvar, Rosa Ana
- Abstract
Objective: To evaluate the tolerance of Tamaulipas native maize populations to the leaf damage caused by Spodoptera frugiperda. Design/Methodology/Approach: During the two agricultural cycles of 2019, the leaf damage by S. frugiperda and the grain yield decrease in 10 populations of native maize were evaluated In Güémez, Tamaulipas. Results: Leaf damage by S. frugiperda was minimal when synthetic insecticide (emamectin benzoate) was applied in the autumn-winter agricultural cycle; meanwhile, it was greater in the spring-summer cycle, but its levels remained lower than the rest of the S. frugiperda management strategies. Leaf damage was higher during the spring-summer cycle because the environmental temperature was higher than in the autumn-winter cycle. Study limitations/Implications: Spodoptera frugiperda is an important pest of maize. It is mainly controlled using synthetic insecticides, which cause environmental and human health risks. The use of tolerant cultivars is a strategy that reduces these risks. Findings/Conclusions: The TML2S3 and VHA maize populations were tolerant to S. frugiperda leaf damage in both agricultural cycles; it is considered as the base germplasm for a program aimed at enhancing this characteristic.
- Subjects
TAMAULIPAS (Mexico : State); FALL armyworm; INSECTICIDE application; EMAMECTIN benzoate; AGRICULTURE; ENVIRONMENTAL health; INSECTICIDES; GRAIN yields; CORN
- Publication
Agro Productividad, 2022, Vol 15, Issue 5, p23
- ISSN
2448-7546
- Publication type
Article
- DOI
10.32854/agrop.v15i4.2135