Ação de inseticidas sobre os ovos e lagartas da broca-pequena-do-fruto do tomate, em bioensaio de laboratório

Bortoli, Sérgio Antônio De; Benvenga, S. R.; Gravena, S.; Vacari, Alessandra Marieli; Volpe, Haroldo Xavier Linhares

doi:10.1590/s1808-16572013000100011

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…In the larval stage, this species feeds on the fruit pulp causing severe damages that make the tomato unsuitable for marketing. In certain regions, losses of up to 90% were recorded due to outbreaks of N. elegantalis (Miranda et al ., 2005; Bortoli et al ., 2013). Recognizing the economic importance and the potential of this species spreading to other regions, the European and Mediterranean Plant Protection Organization (EPPO) recently listed N. elegantalis as a quarantine pest in Europe (EPPO, 2020).…”

Section: Introductionmentioning

confidence: 99%

Selection of models to describe the temperature-dependent development of Neoleucinodes elegantalis (Lepidoptera: Crambidae) and its application to predict the species voltinism under future climate conditions

Santos

Marchioro

2021

Bull. Entomol. Res.

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The small tomato borer, Neoleucinodes elegantalis (Guenée, 1854) is a multivoltine pest of tomato and other cultivated solanaceous plants. The knowledge on how N. elegantalis respond to temperature may help in the development of pest management strategies, and in the understanding of the effects of climate change on its voltinism. In this context, this study aimed to select models to describe the temperature-dependent development rate of N. elegantalis and apply the best models to evaluate the impacts of climate change on pest voltinism. Voltinism was estimated with the best fit non-linear model and the degree-day approach using future climate change scenarios representing intermediary and high greenhouse gas emission rates. Two out of the six models assessed showed a good fit to the observed data and accurately estimated the thermal thresholds of N. elegantalis. The degree-day and the non-linear model estimated more generations in the warmer regions and fewer generations in the colder areas, but differences of up to 41% between models were recorded mainly in the warmer regions. In general, both models predicted an increase in the voltinism of N. elegantalis in most of the study area, and this increase was more pronounced in the scenarios with high emission of greenhouse gases. The mathematical model (74.8%) and the location (9.8%) were the factors that mostly contributed to the observed variation in pest voltinism. Our findings highlight the impact of climate change on the voltinism of N. elegantalis and indicate that an increase in its population growth is expected in most regions of the study area.

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Section: Introductionmentioning

confidence: 99%

Selection of models to describe the temperature-dependent development of Neoleucinodes elegantalis (Lepidoptera: Crambidae) and its application to predict the species voltinism under future climate conditions

Santos

Marchioro

2021

Bull. Entomol. Res.

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“…In leaf bioassays, no differences in mortality for teflubenzuron alone or in mixture with adjuvants on SBL strains were detected. Contrary to this, adjuvants added to the insecticide spray of other biosynthesis chitin inhibitors (flufenoxuron, triflumuron, novaluron, and lufenuron) increased the mortality of N. elegantalis (DE BORTOLI et al, 2013). In laboratory and field applications of chlorantraniliprole and flubendiamide, the addition of adjuvants increased the mortality of A. transitella (DEMKOVICH et al, 2018).…”

Section: Discussionmentioning

confidence: 97%

“…Previous studies indicated that adjuvants added to diamides increased the mortality of adults of Amyelois transitella (Walker, 1863) (Lepidoptera: Pyralidae) (DEMKOVICH et al, 2018). This was also verified when adjuvants were added to indoxacarb and cartap to control Neoleucinodes elegantalis (Guenée, 1854) (Lepidoptera: Pyralidae) (DE BORTOLI et al, 2013), to thiamethoxam + lambda-cyhalothrin against Enneothrips flavens Moulton, 1941 (Thysanoptera: Thripidae) (CALORE et al 2015), and dimethoate and spinetoram to control Thrips tabaci Lind., 1888 (Thysanoptera: Thripidae) (NEGASH et al, 2020).…”

Section: Introductionmentioning

confidence: 83%

Influence of adjuvants added to teflubenzuron spray on resistant and susceptible strains of the soybean looper Chrysodeixis includens (Lepidoptera: Noctuidae)

et al. 2023

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The soybean looper (SBL), Chrysodeixis includens (Walker, [1858]) (Lepidoptera: Noctuidae), is a soybean and cotton pest in South America countries. Field-evolved resistance of SBL to inhibitors of chitin biosynthesis has been reported in Brazil; however, this mode of action is still widely used against SBL. On this basis, we conducted laboratory bioassays to investigate if adjuvants (Nimbus®, TA 35®, Break-Thru® S 240, and Rizospray Extremo®) added to the teflubenzuron spray increase the mortality of SBL strains (resistant, heterozygous, and susceptible to chitin biosynthesis inhibitors). Using chromatography analysis, we also evaluated the amount of teflubenzuron on soybean leaves when applied alone or in combination with adjuvants. In laboratory bioassays, the biological activity of teflubenzuron increased against the susceptible SBL strain when adjuvants were added. In contrast, no relevant effects of adjuvants added to the teflubenzuron spray against heterozygous and resistant SBL larvae were detected. In leaf bioassays, even leaves from the upper third part of the plants containing a significantly higher amount of teflubenzuron (3.4 mg/kg vs 1.7 and 0.6 mg/kg); the mortality of SBL strains was similar when teflubenzuron was applied alone or in mixture with adjuvants. Our findings indicated that adjuvants added to teflubenzuron spray do not provide a substantial increase in the mortality of SBL strains resistant to chitin biosynthesis inhibitors. Therefore, it is necessary to reduce the use of this mode-of-action insecticide against SBL and to give preference to other insecticides or control tactic.

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Toxicicity and Histological Changes Caused by Insecticides in Spodoptera frugiperda (Lepidoptera: Noctuidae) Eggs

Soares

Davi

Fernandes

et al. 2021

Florida Entomologist

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Ação de inseticidas sobre os ovos e lagartas da broca-pequena-do-fruto do tomate, em bioensaio de laboratório

Abstract: 73Ação de inseticidas sobre os ovos e lagartas da broca-pequena-do-fruto do tomate, em bioensaio de laboratório.

Cited by 3 publications

References 10 publications

Selection of models to describe the temperature-dependent development of Neoleucinodes elegantalis (Lepidoptera: Crambidae) and its application to predict the species voltinism under future climate conditions

Selection of models to describe the temperature-dependent development of Neoleucinodes elegantalis (Lepidoptera: Crambidae) and its application to predict the species voltinism under future climate conditions

Influence of adjuvants added to teflubenzuron spray on resistant and susceptible strains of the soybean looper Chrysodeixis includens (Lepidoptera: Noctuidae)

Toxicicity and Histological Changes Caused by Insecticides in Spodoptera frugiperda (Lepidoptera: Noctuidae) Eggs

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