HÍBRIDOS DE MILHO FRENTE AO ATAQUE DE Spodoptera frugiperda EM ASSOCIAÇÃO COM ADUBAÇÃO SILICATADA E O EFEITO SOBRE O PREDADOR Doru luteipes

Toscano, Luciana Cláudia; Fernandes, Mariano Antunes; Rota, Murillo Silva; Maruyama, Wilson Itamar; Andrade, Jessica Velasco

doi:10.32404/rean.v3i1.680

Cited by 5 publications

(5 citation statements)

References 13 publications

(8 reference statements)

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“…There are different performances among maize cultivars in relation to S. frugiperda attacks, verified that higher damage scores were observed in hybrids when compared to their transgenic isogenic version [24]. When studying different genotypes of maize against S. frugiperda attacks, found similar results that corroborate to this research, where the hybrids suffered a higher level of attack in compared to the transgenic cultivar [25].…”

Section: Resultssupporting

confidence: 82%

Resistance Induction in Zea mays L. Cultivars against Spodoptera frugiperda (Lepidoptera: Noctuidae)

Gonzaga¹,

Oliveira²,

Alves³

et al. 2018

JEAI

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The maize crop Zea mays L., faces serious limitations in cultivation due to attack by the Spodoptera frugiperda. The objective of this work was to evaluate the resistance induction in maize cultivars with Spodoptera frugiperda caterpillars due to the application of silicon (Si) and calcium (Ca) sources. Two cultivars of maize viz., Genotype A simple hybrid and the Creole Genotype B variety were used. These cultivars were submitted to two treatments of foliar fertilisation, calcium

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Section: Resultssupporting

confidence: 82%

Resistance Induction in Zea mays L. Cultivars against Spodoptera frugiperda (Lepidoptera: Noctuidae)

Gonzaga¹,

Oliveira²,

Alves³

et al. 2018

JEAI

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“…Due to these sub-lethal impacts, insects experience minor effects on fecundity, reproduction, and development [ 26 ]. In addition to the lethal effects (direct killing), insecticides can also result in the degradation and chemical distribution in the field, negatively impacting insect physiology, behavior, reproduction, longevity and biology [ 23 , 27 , 28 , 29 ]. Chlorantraniliprole showed toxicity and field efficacy against S. frugiperda [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Akhtar

Afzal

Idrees

et al. 2022

Insects

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Fall armyworm [Spodoptera frugiperda (J. E. Smith, 1797)] was first reported in the Americas, then spread to all the continents of the world. Chemical insecticides are frequently employed in managing fall armyworms. These insecticides have various modes of actions and target sites to kill the insects. Chlorantraniliprole is a selective insecticide with a novel mode of action and is used against Lepidopteran, Coleopteran, Isopteran, and Dipteran pests. This study determined chlorantraniliprole's lethal, sub-lethal, and trans-generational effects on two consecutive generations (F0, F1, and F2) of the fall armyworm. Bioassays revealed that chlorantraniliprole exhibited higher toxicity against fall armyworms with a LC50 of 2.781 mg/l after 48 h of exposure. Significant differences were noted in the biological parameters of fall armyworms in all generations. Sub-lethal concentrations of chlorantraniliprole showed prolonged larval and adult durations. The parameters related to the fitness cost in F0 and F1 generations showed non-significant differences. In contrast, the F2 generation showed lower fecundity at lethal (71 eggs/female) and sub-lethal (94 eggs/female) doses of chlorantraniliprole compared to the control (127.5–129.3 eggs/female). Age-stage specific survival rate (Sxj), life expectancy (Exj) and reproductive rate (Vxj) significantly differed among insecticide-treated groups in all generations compared to the control. A comparison of treated and untreated insects over generations indicated substantial differences in demographic parameters such as net reproduction rate (R0), intrinsic rate of increase (r), and mean generation time (T). Several biological and demographic parameters were shown to be negatively impacted by chlorantraniliprole. We conclude that chlorantraniliprole may be utilized to manage fall armyworms with lesser risks.

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“…Therefore, these pesticides are not so effective and have side effects on human health and the environment. Damage caused by fall armyworm has urged the introduction of some alternative control methods such as resistant plants [ 6 ], biological control [ 7 ], and resistance elicitors [ 8 ]. Extracts of organic origin and essential oils obtained from plants are alternative control methods, which play a vital role in pest control.…”

Section: Introductionmentioning

confidence: 99%

Silicon-based induced resistance in maize against fall armyworm [Spodoptera frugiperda (Lepidoptera: Noctuidae)]

et al. 2021

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The fall armyworm (Spodoptera frugiperda) is a major economic pest in the United States and has recently become a significant concern in African and Asian countries. Due to its increased resistance to current management strategies, including pesticides and transgenic corn, alternative management techniques have become more necessary. Currently, silicon (Si) is being used in many pest control systems due to its ability to increase plant resistance to biotic and abiotic factors and promote plant growth. The current experiments were carried out at the College of Plant Protection, Gansu Agricultural University, Lanzhou, China, to test the effect of Si on lifetable parameters and lipase activity of fall armyworm and vegetative and physiological parameters of maize plants. Two sources of Si (silicon dioxide: SiO2 and potassium silicate: K2SiO3) were applied on maize plants with two application methods (foliar application and soil drenching). The experiment results revealed that foliar applications of SiO2 and K2SiO3 significantly (P≤0.05) increased mortality percentage and developmental period and decreased larval and pupal biomass of fall armyworm. Similarly, both Si sources significantly (P≤0.05) reduced lipase activity of larvae, and fecundity of adults, whereas prolonged longevity of adults. Among plant parameters, a significant increase in fresh and dry weight of shoot, stem length, chlorophyll content, and antioxidant activity was observed with foliar applications of Si. Root fresh and dry weight was significantly (P ≤ 0.05) higher in plants treated with soil drenching of SiO2 and K2SiO3. Moreover, SiO2 performed better for all parameters as compared to K2SiO3 and control treatment. The study conclusively demonstrated a significant negative effect on various biological parameters of fall armyworm when plants were treated with Si, so it can be a promising strategy to control this pest.

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HÍBRIDOS DE MILHO FRENTE AO ATAQUE DE Spodoptera frugiperda EM ASSOCIAÇÃO COM ADUBAÇÃO SILICATADA E O EFEITO SOBRE O PREDADOR Doru luteipes

Cited by 5 publications

References 13 publications

Resistance Induction in Zea mays L. Cultivars against Spodoptera frugiperda (Lepidoptera: Noctuidae)

Resistance Induction in Zea mays L. Cultivars against Spodoptera frugiperda (Lepidoptera: Noctuidae)

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Silicon-based induced resistance in maize against fall armyworm [Spodoptera frugiperda (Lepidoptera: Noctuidae)]

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