Water stress decreases the biocontrol efficacy of a nucleopolyhedrovirus against the fall armyworm on maize
Por:
Real-Santillán R.O., Del-Val E., Williams T., Martínez-Castillo A.M., Gavito M.E., Contreras-Cornejo H.Á., Díaz T., García-Gómez G., Larsen J.
Publicada:
1 ene 2024
Ahead of Print:
1 oct 2023
Resumen:
Drought events are expected to limit crop productivity in the context of current climate change. Drought is also likely to affect multitrophic interactions such as those involving plants, phytophagous insects and their natural enemies. We designed a two-phase experiment to test the effect of water availability and fertilizer treatment on the interaction between maize, the fall armyworm and its nucleopolyhedrovirus pathogen. Plants grown in soil with high irrigation and mineral fertilization had the highest shoot and root dry weight. Furthermore, plant nitrogen levels were higher in plants with fertilization and a low irrigation scheme compared to other treatments. Low irrigation of maize plants reduced virus-induced mortality of armyworm larvae. Insects did not feed on plants with high irrigation and without fertilization. We conclude that water stress and plant nutrition can affect virus performance and thereby affect the efficiency of biological control and pest management, especially as water and nutrient limitation will likely increase under climate change. © The Author(s) 2023. corrected publication 2023.
Filiaciones:
Real-Santillán R.O.:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM, Antigua Carretera a Pátzcuaro 8701 Col. Ex-hacienda de San José de La Huerta, Michoacán, Morelia, CP. 58190, Mexico
Instituto de Investigaciones Agropecuarias y Forestales de La UMSNH, Km 9.5 Carretera Morelia-Zinapécuaro S/N, Michoacán, Tarímbaro, CP. 58880, Mexico
Del-Val E.:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM, Antigua Carretera a Pátzcuaro 8701 Col. Ex-hacienda de San José de La Huerta, Michoacán, Morelia, CP. 58190, Mexico
Williams T.:
Instituto de Ecología AC, Veracruz, Xalapa, 91073, Mexico
Martínez-Castillo A.M.:
Instituto de Investigaciones Agropecuarias y Forestales de La UMSNH, Km 9.5 Carretera Morelia-Zinapécuaro S/N, Michoacán, Tarímbaro, CP. 58880, Mexico
Gavito M.E.:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM, Antigua Carretera a Pátzcuaro 8701 Col. Ex-hacienda de San José de La Huerta, Michoacán, Morelia, CP. 58190, Mexico
Contreras-Cornejo H.Á.:
Instituto de Investigaciones en Ecosistemas y Sustentabilidad, UNAM, Antigua Carretera a Pátzcuaro 8701 Col. Ex-hacienda de San José de La Huerta, Michoacán, Morelia, CP. 58190, Mexico
Díaz T.:
Laboratorio Nacional de Innovación Ecotecnológica para la Sustentabilidad, Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro 8701, Colonia Ex Hacienda San José de la Huerta, Morelia, 58190, Mexico
García-Gómez G.:
Instituto de Investigaciones Agropecuarias y Forestales de La UMSNH, Km 9.5 Carretera Morelia-Zinapécuaro S/N, Michoacán, Tarímbaro, CP. 58880, Mexico
Larsen J.:
Laboratorio Nacional de Innovación Ecotecnológica para la Sustentabilidad, Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro 8701, Colonia Ex Hacienda San José de la Huerta, Morelia, 58190, Mexico
hybrid, Green Submitted, All Open Access; Hybrid Gold Open Access
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