Data/hora: 22/06/2024 01:58:45

Biblioteca(s): 	Embrapa Trigo.	
Data corrente: 	05/10/2020	
Data da última atualização: 	05/10/2020	
Autoria: 	LUCINI, T.; PANIZZI, A. R.	
Afiliação: 	TIAGO LUCINI, Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, PR 82590-300, Brazil; ANTONIO RICARDO PANIZZI, CNPT.	
Título: 	Electropenetrographic comparison of feeding behavior of dichelops furcatus (Hemiptera: Heteroptera: Pentatomidae) on soybean and spring cereals .	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Journal of Economic Entomology, v. 113, n. 4, p. 1796-1803 June. 2020.	
DOI: 	10.1093/jee/toaa114	
Idioma: 	Inglês	
Conteúdo: 	We used electropenetrography to quantify and compare counts and durations of selected waveforms, produced by adult females of the stink bug Dichelops furcatus (F.). Insects fed on immature soybean pods and immature seed heads of four spring cereals: wheat, black oat, barley, and rye. On all foods, bugs spent over 60% of their plant access time in non-probing activities. This total waveform duration was significantly longer on barley and rye compared to those on soybean and oat; wheat was intermediate. Considering only probing activities, bugs spent longer durations (ca. 2×), on soybean and oat compared to barley, rye, and wheat plants. Bugs produced significantly more pathway events on soybean and rye than on wheat and barley; with a significantly shorter duration per event on rye. The counts and durations of xylem ingestion did not differ among foods. Cell rupturing activities on seeds were longer on soybean (ca. 23%) and oat (ca. 21%), than on barley and rye (ca. 6%). The durations of ingestion events on seeds were significantly shorter on soybean (over 3×) compared to those on barley and wheat; oat and rye were intermediate. However, the ingestion duration per insect did not show significant difference among foods. Results demonstrated that D. furcatus spent more time overall in probing activities on soybean and oat; whereas, rye and barley presented the worst feeding behavior. This study provides important background information for further quantitative studies of stink bugs on different plants, such as development of resistant host plants. Key words: crop plant, feeding behavior, electrical penetration graph, electropenetrography	
Palavras-Chave: 	Crop plant; Electrical penetration graph; Electropenetrography.	
Thesaurus Nal: 	Feeding behavior.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/216402/1/Dichelops-furcatus-Spring-Cereals-2020.pdf	
Registro original: 	Embrapa Trigo (CNPT)	
Exemplares: 	CNPT - (45002-1) - UPC - AP - DD -  -  -  - DIS