Abstract
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.
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Claims 3
Claim · model-written summary
Mineral films (Surround WP kaolin and kaolins 605, 607, 608, 611) inhibited A. obliqua oviposition on guava.
- Taxon
- guava
Psidium guajavae1 - Treatment
- Mineral films (Surround® WP kaolin, and kaolins 605, 607, 608, and 611)e1
- Interactor
- A. obliqua
Anastrepha obliquae1pest - Outcome
- ovipositione1
- Direction
- inhibitinge1
- Comparator
- distilled water (control)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“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”
e2“and distilled water (control)”
Claim · model-written summary
Biomaterials (cassava and potato starch) inhibited A. obliqua oviposition on guava.
- Taxon
- guavaPsidium guajavae1
- Treatment
- biomaterials (cassava and potato starch)e1
- Interactor
- A. obliquaAnastrepha obliquae1pest
- Outcome
- ovipositione1
- Direction
- inhibitinge1
- Comparator
- distilled water (control)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“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”
e2“and distilled water (control)”
Claim · model-written summary
Talc, chitosan and guar gum did not influence A. obliqua oviposition on guava.
- Taxon
- guavaPsidium guajavae4
- Treatment
- Talc, chitosan, and guar gume4
- Interactor
- A. obliquaAnastrepha obliquae4pest
- Outcome
- ovipositione4
- Direction
- did not influencee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Talc, chitosan, and guar gum did not influence the oviposition of A. obliqua in guava”