Neotropical Entomology (2019) 48, 356-363

C.A. Baronio, D. Bernardi, M.Z. Nunes, J. Pasinato, F.R.M. Garcia and M. Botton (2019)
Bioassay method for toxicity studies of toxic bait formulations to Ceratitis capitata (Diptera: Tephritidae)
Neotropical Entomology 48 (2), 356-363
Abstract: The development of appropriate methodologies for bioassays is of paramount importance to study the methodological factors that may interfere in the experimental design. Thus, laboratory bioassays have become increasingly important for the determination of data that are realistic and replicable. The objective of the study was to develop a bioassay methodology with the ready-to-use toxic bait Success™ 0.02CB, 96 mg L^-1 of spinosad, in adults of Ceratitis capitata (Wiedemann) as a study model. The insect origin (laboratory population, LT₅₀ = 11.16 h), time of toxic bait supply (4 h, LT₅₀ = 16.85 h), food deprivation (12 h, LT₅₀ = 15.55 h), and the adult age (5 days, LT₅₀ = 35.31 h) of C. capitata showed higher susceptibility and a shorter LT₅₀ lethal time to the Success™ 0.02CB toxic bait. However, the absence or presence of a food source (LT₅₀ ~ 31.17 h) during the bioassay did not affect the susceptibility of C. capitata. Further, adults of C. capitata who were deprived and in the absence of a food source (artificial diet) had higher consumption of toxic baits (mg) during treatment exposure. The use of a 12-h deprivation period, toxic baits offered for 4 h, and absence of an artificial diet for adults of C. capitata at 5 days of age during the bioassay are considered adequate for evaluating formulations of toxic baits under laboratory conditions.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Flávio Roberto Mello Garcia, Marcos Botton

Research topic(s) for pests/diseases/weeds:
control - general
pheromones/attractants/traps

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ceratitis capitata