Data/hora: 24/06/2024 20:21:58

Biblioteca(s): 	Embrapa Meio Ambiente.	
Tipo da produção científica: 	Nota Técnica/Nota Científica	
Data corrente: 	12/12/2019	
Data da última atualização: 	12/12/2019	
Autoria: 	MASTRANGELO, T.; SILVA, F. F. da; MASCARIN, G. M.; SILVA, C. B. da.	
Afiliação: 	THIAGO MASTRANGELO, CENA-USP; FABIANO FRANÇA DA SILVA, ESALQ-USP; GABRIEL MOURA MASCARIN, CNPMA; CLÍSSIA BARBOSA DA SILVA, ESALQ-USP.	
Título: 	Multispectral imaging for quality control of laboratory-reared Anastrepha fraterculus (Diptera: Tephritidae) pupae.	
Ano de publicação: 	2019	
Fonte/Imprenta: 	Journal of Applied Entomology, v. 143, n. 10, p. 1072-1079, 2019.	
Idioma: 	Inglês	
Conteúdo: 	The sterile insect technique (SIT) has been widely used to suppress several fruit fly species. In southern Brazil, millions of sterile flies of the South American fruit fly, Anastrepha fraterculus Wiedemann (Dipetra: Tephritidae), will be produced in a mass?rearing facility called MOSCASUL to suppress wild populations from commercial apple orchards. In spite of standard rearing conditions, the quality of pupal batches can be inconsistent due to various factors. The quantification of poor quality material (e.g. empty pupae, dead pupae or larvae) is necessary to track down rearing issues, and pupal samples must be taken randomly and evaluated individually. To speed up the inspection of pupal samples by replacing the manual testing with the mechanized one, this study assessed a multispectral imaging (MSI) system to distinguish the variations in quality of A. fraterculus pupae and to quantify the variations based on reflectance patterns. Image acquisition and analyses were performed by the VideometerLab4 system on 7?d?old pupae by using 19 wavelengths ranging from 375 to 970 nm. The image representing the near infrared wavelength of 880 nm clearly distinguished among high?quality pupae and the other four classes (i.e. low?quality pupae, empty pupae, dead pupae and larvae). The blind validation test indicated that the MSI system can classify the fruit fly pupae with high accuracy. Therefore, MSI?based classification of A. fraterculus pupae can be used for future pupal quality assessments of fruit flies in mass?rearing facilities.	
Palavras-Chave: 	Criação em laboratório; Pulpa.	
Thesagro: 	Controle de Qualidade; Mosca das Frutas.	
Thesaurus Nal: 	Fruit flies; Laboratory rearing; Multispectral imagery; Quality control.	
Categoria do assunto: 	O Insetos e Entomologia	
Registro original: 	Embrapa Meio Ambiente (CNPMA)	
Exemplares: 	CNPMA - (16624-1) - UPC - AP - DD -  -  -  - DIS