Influence of Mineral Particle Films and Biomaterials on Guava Fruits and Implications for the Oviposition of Anastrepha obliqua (Macquart) (Diptera: Tephritidae)

Autor: Iara Sordi Joachim-Bravo, Beatriz Sousa Coelho, Aldenise Alves Moreira, Maria Aparecida Castellani, Daniela Ribeiro da Costa, Mateus Pereira dos Santos, Carlos Alberto Domingues da Silva, Suzany Aguiar Leite
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Insects, Vol 12, Iss 373, p 373 (2021)
Insects
Volume 12
Issue 5
ISSN: 2075-4450
Popis: Anastrepha obliqua (Macquart, 1835) is an important pest of tropical fruits, especially Anacardiaceae and Myrtaceae, in the Americas. The objective of this study was to evaluate the influence of mineral films and biomaterials on the coloring of guava fruits (Psidium guajava L.) and implications for the oviposition of A. obliqua. Before the bioassays, color, firmness characteristics, total soluble solids, pH, and titratable acidity were determined to characterize the maturation stage of the fruits. Pieces of guava fruit covered in aluminum foil were immersed in suspensions of mineral particles (Surround® WP kaolin
kaolins 605, 607, 608, and 611
and talc) and biomaterials (chitosan, cassava and potato starch, and guar gum) and distilled water (control). After drying, the fruits were exposed to two A. obliqua pairs for 48 h in choice and non-choice tests, and the numbers of eggs per fruit were counted. Mineral films (Surround® WP kaolin, and kaolins 605, 607, 608, and 611) and biomaterials (cassava and potato starch) interfered with the color of guava (luminosity, chroma, and hue angle), inhibiting the oviposition of A. obliqua. Talc, chitosan, and guar gum did not influence the oviposition of A. obliqua in guava.
Databáze: OpenAIRE