Spittlebugs (Hemiptera: Cercopidae) and their host plants: a strategy for pasture diversification

Alvarenga, Renata Ribeiro; Auad, Alexander Machado; Moraes, Jair Campos; Silva, Sandra E. B.; Rodrigues, Brunno Santos; Silva, Giani B.

doi:10.1007/s13355-017-0521-0

Cited by 9 publications

(4 citation statements)

References 28 publications

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“…According to Valério et al , the genus Mahanarva is usually associated with taller and more robust grasses, such as P. purpureum . This result is consistent with previous reports by Auad et al and Alvarenga et al , who showed the susceptibility of P. purpureum to M. spectabilis . According to Alvarenga et al , among other spittlebug species, M. spectabilis may prove to be the greatest menace to pastures planted with P. purpureum .…”

Section: Discussionsupporting

confidence: 94%

Do silicon and nitric oxide induce resistance to Mahanarva spectabilis (Hemiptera: Cercopidae) in forage grasses?

Alvarenga

Auad

Moraes

et al. 2019

Pest Management Science

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BACKGROUND Great efforts have been made to identify grasses that are resistant to spittlebugs (Hemiptera: Cercopidae). However, the time required to develop and launch new cultivars is relatively long. The employment of resistance inducers is a current strategy that may be useful for the control of insect pests. This analysis evaluates the feasibility of using the chemical inducers silicon and nitric oxide to increase spittlebug resistance based on changes in forage grass vegetative characteristics and the biological traits of Mahanarva spectabilis (Distant, 1909). RESULTS Mahanarva spectabilis nymphs and adults can cause significant damage to forage grasses. Furthermore, silicon and nitric oxide inducers were not sufficient to lessen this damage by positively influencing the growth and development of forage grasses. These inducers did not negatively alter the biological parameters of M. spectabilis or diminish its population. However, phenolic compound concentrations increased when forage grasses were treated with silicon or attacked by adult insects, but this parameter was not useful to predict spittlebug resistance. This fact suggests that the physiological and biochemical changes caused by silicon should be further studied. CONCLUSION The current analysis demonstrated that application of the chemical inducers silicon and nitric oxide is currently not a viable strategy for the effective and economic management of M. spectabilis on Brachiaria ruziziensis, Pennisetum purpureum and Digitaria sp. © 2019 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 94%

Do silicon and nitric oxide induce resistance to Mahanarva spectabilis (Hemiptera: Cercopidae) in forage grasses?

Alvarenga

Auad

Moraes

et al. 2019

Pest Management Science

Self Cite

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“…In IPM programs, the use of antibiotic-resistant genotypes is highly desirable, since it reduces the pest species performance and population size in subsequent generations (effect transgenerational) and may, depending on the resistance level, keep the pest at population levels below recommendations for its control (Smith 2005, Vendramim & Guzzo 2012. On the other hand, the selection of pasture grasses by farmers can affect significantly and differentially pest population densities in the landscape (Alvarenga et al 2017). Our results show that pasture diversification with giant missionary grass or especially with Pinto peanut may be an interesting strategy for IPM of fall armyworm in pasturelands in a regional context, in addition providing benefits of a leguminous plant inclusion into the system (Tozer et al 2016, Cox et al 2017, Islam & Ashilenje 2018).…”

Section: Discussionmentioning

confidence: 79%

Adaptability and Comparative Biology of Fall Armyworm on Maize and Perennial Forage Species and Relation with Chemical-Bromatological Composition

et al. 2020

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This study compared the development of fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), on forage species of different genera (Arachis, Axonopus, and Cynodon) in relation to maize (preferred host) as well as its adaptability on these forage species, which are the main cultivated forages in southern Brazil. The biological performance of S. frugiperda fed on host plants studied showed the highest adaptation index (AI) in maize (26.89), followed by bermudagrass (22.02), suggesting that bermudagrass is the most suitable alternative host for the development of S. frugiperda. In contrast, the giant missionary grass (18.80) and Pinto peanut (13.81) showed lower adequacy, with a relative adaptation index (RAI) 69.93 and 51.35%, respectively, using maize as standard. The cluster analysis based on similarity of the chemical-bromatological parameters showed that maize has a richer composition than the other plant species studied. The multivariate correlation analysis between AI and chemicalbromatological composition showed a positive correlation between AI and contents of ashes, ethereal extract, potassium, phosphorus, and magnesium and, to a lesser extent, with contents of nitrogen, crude protein, and copper. In this context, complexity of host composition and balance between components could explain the biological fitness of S. frugiperda on host plant species. Pasture diversification with giant missionary grass, or especially with Pinto peanut, may be an interesting strategy for integrated pest management of fall armyworm in pasturelands in a regional context.

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“…Concentration of fiber is related to plant structure and cell wall stability (Jung, 1997; Mathison, 1995; Van Soest, 1995), which are directly associated with forage digestibility and abiotic tolerance to drought, acidic soils, and salinity. However, thick walls do not seem to affect the spittlebug resistance, which is normally related to other morphological structures such as trichomes (Sletvold, Huttunen, Handley, Kärkkäinen, & Ågre, 2010; Tian, Tooker, Peiffer, Chung, & Felton, 2012) and plant secondary metabolites (Alvarenga, Auad, Moraes, & Silva, 2019; Alvarenga et al., 2017; Auad and De Resende, 2018).…”

Section: Discussionmentioning

confidence: 99%

Urochloa spp. multivariate performance: Similarities and divergences among intra‐ and interspecific populations

et al. 2020

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Multivariate analysis is a tool that breeders can use to compare populations and select genotypes for specific purposes. This study used principal component analysis to compare three intraspecific and three interspecific populations of Urochloa spp. based on insect resistance, agronomic, and seed production characteristics. This multivariate strategy exposed completely different profiles and important differences among these populations despite their close genomic ancestry. In general, interspecific populations had greater variability than intraspecific populations for agronomic traits, seed production, and spittlebug resistance. Consequently, crosses among different species, whenever possible, are a better option to obtain new Urochloa breeding populations. However, the breeding of intraspecific populations is also an excellent option to improve specific traits related to each species, which can then be used to speed the breeding in the interspecific programs. Multivariate analysis demonstrated substantial variability within progenies of the interspecific Urochloa populations that can be used to improve insect resistance and productivity of tropical pastures.

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Spittlebugs (Hemiptera: Cercopidae) and their host plants: a strategy for pasture diversification

Cited by 9 publications

References 28 publications

Do silicon and nitric oxide induce resistance to Mahanarva spectabilis (Hemiptera: Cercopidae) in forage grasses?

Do silicon and nitric oxide induce resistance to Mahanarva spectabilis (Hemiptera: Cercopidae) in forage grasses?

Adaptability and Comparative Biology of Fall Armyworm on Maize and Perennial Forage Species and Relation with Chemical-Bromatological Composition

Urochloa spp. multivariate performance: Similarities and divergences among intra‐ and interspecific populations

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