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Yield loss in sugarcane due to Diatraea tabernella dyar (Lepidoptera: Crambidae) in Panama

Yield loss in sugarcane due to Diatraea tabernella dyar (Lepidoptera: Crambidae) in Panama. Atencio Valdespino Randy, Goebel François-Régis, Pérez Milian José R., Rodríguez Mérida, Fernandez Luisana. 2017. Sugar Tech, 19 (6) : 579-583.
https://doi.org/10.1007/s12355-017-0518-6

Congress of the International Society of Sugar CaneTechnologist. 29, Chiang Mai, Thaïlande, 5 Décembre 2016/8 Décembre 2016.
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Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Résumé : The moth borer Diatraea tabernella Dyar (Lepidoptera: Crambidae) feeds on sugarcane causing holes and tunnels in the stalks resulting in yield losses. Damage facilitates the entry of red rot (Colletotrichum falcatum) causing inversion of sucrose in the sugarcane juice. Two types of damage that can be related to sugar loss were assessed and analyzed: the percentage of internodes bored in the stalk and the internal damage (=length of borer tunnels). After a preliminary assessment on borer damage in 2012, a new study was conducted in 2016 to thoroughly investigate the impact of D. tabernella not only on cane and sugar yield, but also on stalk parameters (length, diameter, stalk mass, etc.). This assessment was conducted on eight varieties and was carried out on three samples (replicates) of five stalks per variety grouped in five damage levels (0, 1, 2, 3 and 4 internodes bored). The results indicated that stalk mass, fiber and sugar yield were significantly affected by the stalk borer. Sugar yield decreased up to 2.56 t of sugar per hectare, with damage level 3 similar to the yield with no damage (level 0). Internodes of cultivars E07-09, Na56-42, SP01-2050 and SP81-3250 were less damaged at the two-internode category and had lower sugar losses. There was an exact linear relationship negative (decreasing) between sugar yield (t/ha) and damage levels (y = −0.579x + 9.324, R 2 = 0.9069) with a range from 12.9% with damage level 1 to 26.47% loss with damage level 4.

Mots-clés Agrovoc : Saccharum, Diatraea, Insecte déprédateur des tiges, Dégât à la plante, Perte de récolte

Mots-clés géographiques Agrovoc : Panama

Mots-clés complémentaires : Diatraea centrella

Mots-clés libres : Sugarcane; Stemborers; Damage; Yield losses

Classification Agris : H10 - Ravageurs des plantes

Auteurs et affiliations

  • Atencio Valdespino Randy - contact, CIRAD-PERSYST-UPR AIDA (FRA)
  • Goebel François-Régis, CIRAD-PERSYST-UPR AIDA (FRA)
  • Pérez Milian José R., INICA (CUB)
  • Rodríguez Mérida, INICA (CUB)
  • Fernandez Luisana, Universidad de Panama (PAN)

Source : Cirad-Agritrop

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