Silicon accumulation in maize negatively impacts the feeding and life history traits of Spodoptera exigua Hübner

Leroy, N.; Hanciaux, Noé; Cornélis, Jean-Thomas; Verheggen, François

doi:10.1127/entomologia/2021/1357

Cited by 6 publications

(3 citation statements)

References 40 publications

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“…Silicon applications signi cantly decreased the population of immature white ies and tomato leaf miner on tomato crop in the greenhouse; Si-foliar spraying was more effective in reducing the population density of these key pests compared to Si-soil drench application [16]. Similar con rmatory results were obtained by Pereira et al [17] who demonstrated the larval mortality of S. frugiperda on Si supplemented plants. After 48 h of being fed, they observed that larval mortality was about six times higher on plants receiving Si applications than plants with no Si.…”

Section: Discussionsupporting

confidence: 66%

Influence of silicon and growth regulator on leaf, whorl and cob damage of maize fall armyworm in vivo

Sriniva

Chandramani

Mookiah

et al. 2023

Preprint

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Microplot field experiment was conducted to study the effect of silicon sources and growth regulator against maize fall armyworm, Spodoptera frugiperda at Thoppur village of Virudhunagar district during Rabi, 2021-22. Basal application of different doses of calcium silicate and foliar application of silicic acid and potassium silicate were carried out. The results revealed that basal application of 150 kg of calcium silicate/ha + 0.2% silicic acid @ 15 DAS + 50 ppm GA @ 30 DAS was found to be effective in reducing leaf damage (42.88% per plant), whorl damage (36.05% per plot ) and cob damage (26.92% per plot) followed by treatment with 75 kg of calcium silicate/ha + 0.2% silicic acid @ 15 DAS + 50 ppm GA @ 30 DAS with leaf, whorl and cob damage of 44.74 per cent/plant, 39.24 per cent/plot and 26.92 per cent/plot respectively. Regarding yield, maximum yield of 7, 287 kgs/ha was recorded in the treatment with basal application of 150 kg of calcium silicate/ha + 0.2% SA @ 15 DAS + 50 ppm GA @ 30 DAS followed by treatment with 75 kg of calcium silicate + 0.2% SA @ 15 DAS + 50 ppm GA @ 30 DAS (7, 092 kg/ha). Hence in the present study, the basal application of calcium silicate 150 kg/ha combined with foliar application of silicic acid (0.2%) and gibberellic acid (50 ppm) at 15 and 30 DAS reduced the leaf, whorl and cob damage level of fall armyworm on maize at field condition.

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Section: Discussionsupporting

confidence: 66%

Influence of silicon and growth regulator on leaf, whorl and cob damage of maize fall armyworm in vivo

Sriniva

Chandramani

Mookiah

et al. 2023

Preprint

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“…The life table is an important tool for studying population ecology (Nika et al 2021;Leroy et al 2022), as it provides a clear overview of parameters such as survival rate, development time, longevity and fecundity (Chi et al 2022a;. The impact of cyetpyrafen on the life history traits of P. persimilis is a key aspect of the combined strategy.…”

Section: Discussionmentioning

confidence: 99%

Control of two-spotted spider mite, Tetranychus urticae, on strawberry by integrating with cyetpyrafen and Phytoseiulus persimilis

Zhao,

Dai

et al. 2023

CABI Agric Biosci

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The two-spotted spider mite (TSSM, Tetranychus urticae Koch) is a significant agricultural pest, particularly in strawberries. Management of TSSM has traditionally relied on synthetic acaricides, but to mitigate dependency on these chemicals, the control of TSSM on strawberry is often combined with biological control measures and chemical control strategies. The predatory mite, Phytoseiulus persimilis, is a promising biological control agent, preying on all TSSM developmental stages. In this study, we examined the toxicity of six common acaricides on TSSM and P. persimilis, and cyetpyrafen was selected due to its highest relative toxicity value. Then, we examined the compatibility of cyetpyrafen with P. persimilis for TSSM management on strawberries. The results suggested that cyetpyrafen revealed no substantial differences in prey consumption or longevity when compared to the control, though minor effects on the development durations of protonymphs and deutonymphs were noted in the subsequent generation. Additionally, cyetpyrafen's toxicity on key pollinators, such as Apis mellifera and Bombus terrestris, was found to be low. Thus, an integrated strategy combining cyetpyrafen (0.83 mg/L) with P. persimilis (predator–prey ratio of 1:30) was examined under laboratory and field conditions. Laboratory trials demonstrated a reduction in mites per leaf from 32.72 to 14.50 within 3 days, correlating to a 70.23% control efficiency. This efficacy increased to 96.04% by day 9 and was sustained until the experiment concluded on day 27. Field trials similarly showed a reduction in TSSM from 53.93 to 9.63 mites/leaf by day 6, achieving an 83.64% control efficiency, and culminated in a 98.46% reduction by day 10. These findings suggested that an integrated approach utilizing cyetpyrafen in conjunction with P. persimilis can be an effective alternative for TSSM management on strawberry plants.

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“…Maize plants (Zea mays L. var Delprim) were grown using a hydroponic production system under the same cultivation parameters as those previously described in Leroy et al (2022b). All assays were performed in Gembloux in 2019.…”

Section: Hydroponic Systemmentioning

confidence: 99%

Impact of contrasted bioavailable silicon inputs in a hydroponic system on the development of maize plants (Zea mays L.)

Leroy¹,

Verheggen²

2023

Biotechnol. Agron. Soc. Environ.

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Description of the subject. Silicon is a beneficial chemical element, considered as “quasi-essential” for plant growth and production. Seven of the top ten most important crops in the world are silicon-accumulating Poaceae species, maize being one of them. However, the beneficial role of Si for plants is still under debate. Objectives. In this study, we evaluate the impact of three silicon concentrations in a nutrient solution on the development of maize plants. Method. We cultivated maize plants in a hydroponic system allowing to provide three contrasted silicon fertilization: (1) a silicon-deficient medium (0.05 mM); (2) a medium silicon supply, comparable to what can be found in an agricultural soil (0.6 mM); and (3) a highly enriched silicon medium (2.0 mM), named Si-, Si+ and Si++, respectively. Results. We found the silicon contents in aerial parts of plants to be strongly impacted by the concentration available in the growing medium: 0.247 g Si·kg-1 DW (Si-), 5.707 g Si·kg-1 DW (Si+) and 8.731 g Si·kg-1 DW (Si++). However, neither plant size nor phenology were impacted by silicon supplies. Both fresh leaf weight (+15.5%) and dry leaf weight (+13.5%) increased under Si++ (compared to Si-). Finally, neither root fresh weight nor root dry weight was impacted by Si fertilization. Conclusions. We conclude that increase in the concentration of Si in nutrient solution leads to increase in fresh and dry weight of the maize leaves.

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Silicon accumulation in maize negatively impacts the feeding and life history traits of Spodoptera exigua Hübner

Cited by 6 publications

References 40 publications

Influence of silicon and growth regulator on leaf, whorl and cob damage of maize fall armyworm in vivo

Influence of silicon and growth regulator on leaf, whorl and cob damage of maize fall armyworm in vivo

Control of two-spotted spider mite, Tetranychus urticae, on strawberry by integrating with cyetpyrafen and Phytoseiulus persimilis

Impact of contrasted bioavailable silicon inputs in a hydroponic system on the development of maize plants (Zea mays L.)

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