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Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia

Overwintering success and weather conditions are the key factors determining the abundance and intensity of the attack of the first generation of European corn borers (ECB). The tolerance of maize to the 1st generation of ECB infestation is often considered to be connected with the maize maturity ti...

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Autores principales: Bažok, Renata, Pejić, Ivan, Čačija, Maja, Virić Gašparić, Helena, Lemić, Darija, Drmić, Zrinka, Kadoić Balaško, Martina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7603110/
https://www.ncbi.nlm.nih.gov/pubmed/33080953
http://dx.doi.org/10.3390/plants9101387
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author Bažok, Renata
Pejić, Ivan
Čačija, Maja
Virić Gašparić, Helena
Lemić, Darija
Drmić, Zrinka
Kadoić Balaško, Martina
author_facet Bažok, Renata
Pejić, Ivan
Čačija, Maja
Virić Gašparić, Helena
Lemić, Darija
Drmić, Zrinka
Kadoić Balaško, Martina
author_sort Bažok, Renata
collection PubMed
description Overwintering success and weather conditions are the key factors determining the abundance and intensity of the attack of the first generation of European corn borers (ECB). The tolerance of maize to the 1st generation of ECB infestation is often considered to be connected with the maize maturity time. The aims of this research were (I) to examine the reactions of different maize FAO maturity groups in term of the damage caused by ECB larvae, (II) to analyze the influence of four climatic regions of Croatia regarding the damage caused by ECB larvae, and (III) to correlate observed damage between FAO maturity groups and weather conditions. First ECB generation damage has been studied in the two-year field trial with 32 different hybrids divided into four FAO maturity groups (eight per group) located at four locations with different climatic conditions. The results showed a lack of correlation between the FAO maturity group and the percent of damage. The percent of damage was positively correlated with the average air temperature in June (r = 0.59 for 2017 and r = 0.74 in 2018, p = 0.0001) within the range from 20 to 24.5 °C and was negatively correlated with the relative air humidity (r = −0.58 in 2017 and r = −0.77 in 2018, p = 0.0001) within the range of 50% to 80%. Our results provide a better understanding of the different factors that influence ECB damage. The obtained data could be used to predict the damage from the first generation of ECB under the weather conditions of different regions.
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spelling pubmed-76031102020-11-01 Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia Bažok, Renata Pejić, Ivan Čačija, Maja Virić Gašparić, Helena Lemić, Darija Drmić, Zrinka Kadoić Balaško, Martina Plants (Basel) Article Overwintering success and weather conditions are the key factors determining the abundance and intensity of the attack of the first generation of European corn borers (ECB). The tolerance of maize to the 1st generation of ECB infestation is often considered to be connected with the maize maturity time. The aims of this research were (I) to examine the reactions of different maize FAO maturity groups in term of the damage caused by ECB larvae, (II) to analyze the influence of four climatic regions of Croatia regarding the damage caused by ECB larvae, and (III) to correlate observed damage between FAO maturity groups and weather conditions. First ECB generation damage has been studied in the two-year field trial with 32 different hybrids divided into four FAO maturity groups (eight per group) located at four locations with different climatic conditions. The results showed a lack of correlation between the FAO maturity group and the percent of damage. The percent of damage was positively correlated with the average air temperature in June (r = 0.59 for 2017 and r = 0.74 in 2018, p = 0.0001) within the range from 20 to 24.5 °C and was negatively correlated with the relative air humidity (r = −0.58 in 2017 and r = −0.77 in 2018, p = 0.0001) within the range of 50% to 80%. Our results provide a better understanding of the different factors that influence ECB damage. The obtained data could be used to predict the damage from the first generation of ECB under the weather conditions of different regions. MDPI 2020-10-18 /pmc/articles/PMC7603110/ /pubmed/33080953 http://dx.doi.org/10.3390/plants9101387 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bažok, Renata
Pejić, Ivan
Čačija, Maja
Virić Gašparić, Helena
Lemić, Darija
Drmić, Zrinka
Kadoić Balaško, Martina
Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia
title Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia
title_full Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia
title_fullStr Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia
title_full_unstemmed Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia
title_short Weather Conditions and Maturity Group Impacts on the Infestation of First Generation European Corn Borers in Maize Hybrids in Croatia
title_sort weather conditions and maturity group impacts on the infestation of first generation european corn borers in maize hybrids in croatia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7603110/
https://www.ncbi.nlm.nih.gov/pubmed/33080953
http://dx.doi.org/10.3390/plants9101387
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