Effect of silicon and nitrogen on Diatraea tabernella dyar in sugarcane in Panama

Effect of silicon and nitrogen on Diatraea tabernella dyar in sugarcane in Panama. Atencio Valdespino Randy, Goebel François-Régis, Guerra Abby. 2018. Sugar Tech, 9 p.

IAPSIT International Sugar Conference. 6, Udon Thani, Thaïlande, 6 Mars 2018/9 Mars 2018.
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Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Résumé : The main pest of sugarcane in Panama is the stem borer, Diatraea tabernella Dyar (Lepidoptera: Pyralidae) which can cause significant losses in cane biomass and sugar. The objective of this study was to determine the influence of two silicon- and nitrogen-based products applied at two rates on borer infestation. To compare the effect of these two amendments, a completely randomized block design was established comprising four treatments with four replicates. This experiment included 16 sampling units of 32 m2 each. Measurements of borer damage, agronomic parameters, sugar content and for silicon, the content in stalk material were conducted to evaluate the impact of different silicon and nitrogen treatments applied in the field. The use of silicon-based products reduced internodes borer (% IB) by up to 50%, confirming the role of silicon in damage reduction. The use of high doses of nitrogen doses resulted in an increase in the damage level from 5.2% (control plots with 110 kg N/ha) to 6.9% IB (treatment with the highest dose of 210 kg N/ha).

Mots-clés Agrovoc : Saccharum officinarum, Diatraea, Lutte culturale, Amendement du sol, Silicium, Azote, Rendement des cultures

Mots-clés géographiques Agrovoc : Panama

Mots-clés libres : Sugarcane; Silicon; Nitrogen; Stemborers; Infestation; Yield losses

Classification Agris : H10 - Ravageurs des plantes
F04 - Fertilisation

Axe stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

  • Atencio Valdespino Randy - contact, CIRAD-PERSYST-UPR AIDA (FRA)
  • Goebel François-Régis, CIRAD-PERSYST-UPR AIDA (FRA)
  • Guerra Abby, Sugar Company (PAN)

Source : Cirad-Agritrop

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