Effect of Silicon-Based Fertilizer Applications on the Reproduction and Development of the Citrus Mealybug (Hemiptera: Pseudococcidae) Feeding on Green Coleus

Hogendorp, Brian K.; Cloyd, Raymond A.; Swiader, John M.

doi:10.1603/029.102.0624

Cited by 15 publications

(9 citation statements)

References 30 publications

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“…Published studies have shown silicon has either no (e.g. Hogendorp, Cloyd & Swiader 2009;Cherry et al 2012;Keeping, Miles & Sewpersad 2014) or negative (e.g. Gomes et al 2008;Costa, Moraes & DaCosta 2011;Dias et al 2014) effects on this feeding guild.…”

Section: Discussionmentioning

confidence: 98%

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Silicon‐induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance

et al. 2017

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Section: Discussionmentioning

confidence: 98%

“…Published studies have shown silicon has either no (e.g. Hogendorp, Cloyd & Swiader ; Cherry et al . ; Keeping, Miles & Sewpersad ) or negative (e.g.…”

Section: Discussionmentioning

confidence: 99%

Silicon‐induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance

et al. 2017

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“…Similarly, resistance mediated by Si in soil was not found in wheat against the aphid Schizaphis graminum (Rondani) (Goussain et al., ), in maize against the aphid Rhopalosiphum maidis (Fitch) (Moraes et al., ), in five grass species against the aphid Sitobion avenae (Fabricius) (Massey et al., ), in the ornamental plant Solenstemon scutellarioides (L.) R.Br. against the mealybug Planococcus citri (Risso) (Hogendorp et al., ), in pepper plant against the thrips Scirtothrips dorsalis Hood (Dogramaci et al., ), and in sugarcane against the thrips Fulmekiola serrata (Kobus) (Keeping et al., , ). Accumulated Si in the leaves may be insufficient to provide a suppressive mechanical effect on sap‐sucking trips (Dogramaci et al., ; Keeping et al., ).…”

Section: Discussionmentioning

confidence: 99%

Silicon‐mediated resistance against specialist insects in sap‐sucking and leaf‐chewing guilds in the Si non‐accumulator collard

Teixeira

Valim

Campos

2017

Entomologia Exp Applicata

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Soil amendment with Silicon (Si) can increase plant resistance against insect herbivores, but the underlying mechanisms remain unclear. The mechanical resistance hypothesis (MRH) states that Si accumulated in epidermal cells directly and passively protects against herbivores by creating a mechanical barrier. The physiological resistance hypothesis (PRH) states that Si enhances resistance by activating plant biochemical and physiological processes. We tested both hypotheses by manipulating Si fertilization of the Si non‐accumulator collard, Brassica oleracea L. cv. acephala (Brassicaceae). Then, we assessed functional and ultrastructural plant responses and the developmental and reproductive performance of the leaf‐chewing larvae of the diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae), and the sap‐sucking cabbage aphid, Brevicoryne brassicae L. (Hemiptera: Aphididae). There was a 20% increase in leaf Si content. Silicon deposition in epidermal cells was identified by confocal microscopy and directly coincided with lower performance of P. xylostella, but did not affect B. brassicae. On the other hand, we found no unequivocal evidence that Si‐mediated changes in primary and secondary metabolism improved plant resistance against the insects. Negative mechanical effects of Si on the insects may have masked beneficial effects of increased water, nitrogen, and mineral contents in Si‐treated collards. Silicon did not change leaf contents of hemicellulose, cellulose, and lignin. Although Si‐mediated increases in leaf glucosinolates (GLS) correlated with lower larval performance and higher oviposition preference of P. xylostella, both P. xylostella and B. brassicae are highly specialized in overcoming such secondary metabolites. Thus, mechanical resistance may have impaired P. xylostella, rather than the Si‐mediated increase in GLS. We suggest that the PRH may depend on the degree of insect feeding specialization, so that toxic Si‐mediated defenses may be more efficient against unadapted polyphagous herbivores. For them, a toxic barrier may be added to the mechanical resistance.

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“…Also, no difference was observed in the number of eggs and in the development time of the mealybug Planococcus citri (Risso) (Hemiptera: Pseudococcidae) with the increase of Si rates in citrus (Citrus spp., Rutaceae) [39], which indicates the importance of the application of Si.…”

Section: Discussionmentioning

confidence: 99%

Study of Potassium Silicate Spraying in Coffee Plants to Control <i>Oligonychus ilicis</i> (McGregor) (Acari: Tetranychidae)

Toledo¹,

Reis²

2018

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The southern red mite, Oligonychus ilicis (McGregor) (Acari: Tetranychidae) can cause a significant reduction in the photosynthesis potential and the growth of new coffee plants (Coffea spp., Rubiaceae). Studies suggest that the leaf spraying of silicon (Si) leads to increase plants resistance in order to reduce infestations of insect pests such as herbivores, borers, sucking insects and mites. The objective of this study was to evaluate the effect of leaf spraying of potassium silicate (K 2 SiO 3 ) to control the southern red mite in coffee plants. Experiments were conducted in coffee plants (Coffea arabica L.), grown in a greenhouse, by means of completely randomized design with six treatments: Dose 0 (control), 2, 4, 6, 8 and 10 liters of silicate potassium ha −1 and five replications. Plants treated with potassium silicate, regardless of the applied dose, had a lower O. ilicis infestation compared to the control, not allowing the population increase, thus a smaller damage in coffee leaves. The silicon content in leaves was higher in plants treated with the highest dose of potassium silicate. It was observed that there was induction of defense molecules such as tannins and lignin in plants sprayed with potassium silicate. It was concluded that the potassium silicate applied in leaf spraying had positive effect on reducing O. ilicis attack in coffee plants, even being a dicot. Therefore, the applications of potassium silicate by leaf spraying can be used in programs of integrated management of the southern red mite in coffee, with a view to sustainable management and environmental protection.

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Effect of Silicon-Based Fertilizer Applications on the Reproduction and Development of the Citrus Mealybug (Hemiptera: Pseudococcidae) Feeding on Green Coleus

Cited by 15 publications

References 30 publications

Silicon‐induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance

Silicon‐induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance

Silicon‐mediated resistance against specialist insects in sap‐sucking and leaf‐chewing guilds in the Si non‐accumulator collard

Study of Potassium Silicate Spraying in Coffee Plants to Control <i>Oligonychus ilicis</i> (McGregor) (Acari: Tetranychidae)

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Effect of Silicon-Based Fertilizer Applications on the Reproduction and Development of the Citrus Mealybug (Hemiptera: Pseudococcidae) Feeding on Green Coleus

Cited by 15 publications

References 30 publications

Silicon‐induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance

Silicon‐induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance

Silicon‐mediated resistance against specialist insects in sap‐sucking and leaf‐chewing guilds in the Si non‐accumulator collard

Study of Potassium Silicate Spraying in Coffee Plants to Control &lt;i&gt;Oligonychus ilicis&lt;/i&gt; (McGregor) (Acari: Tetranychidae)

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Study of Potassium Silicate Spraying in Coffee Plants to Control <i>Oligonychus ilicis</i> (McGregor) (Acari: Tetranychidae)