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

Insects

DanielaRibeiro da Costa¹  MariaAparecida Castellani¹  AldeniseAlves Moreira¹  SuzanyAguiar Leite¹  MateusPereira dos Santos¹  BeatrizSousa Coelho¹  CarlosAlberto Domingues da Silva²  IaraSordi Joachim-Bravo³ 

[1] Department of Crop Science and Animal Science, State University of Southwestern Bahia, Vitóriada Conquista 45083-300, Brazil;Entomology Laboratory, Embrapa Cotton, Campina Grande 58428-095, Brazil;Institute of Biology, Federal University of Bahia, Salvador 40107-115, Brazil;

关键词: chitosan;    eggs;    fruit flies;    kaolin;    luminosity;   

DOI  :  10.3390/insects12050373

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown