Data/hora: 01/06/2024 06:03:01

Provedor de dados: 	82	
País: 	Brazil	
Título: 	Feeding behavior of two exotic aphid species on their original hosts in a new invaded area	
Autores: 	Lazzarotto,CM; Lazzari,SMN; Penteado,SRC.	
Data: 	2011-06-01	
Ano: 	2011	
Palavras-chave: 	Aphid-plant interaction; EPG; Greenidea psidii; Greenidea ficicola.	
Resumo: 	Greenidea ficicola Takahashi and Greenidea psidii van der Goot (Aphididae: Greenideinae) are Asian aphid species newly introduced in Brazil associated with Moraceae and Myrtaceae. The feeding behavior of G. ficicola and G. psidii was investigated on their respective host plants, Ficus benjamina (Moraceae) and Psidium guajava (Myrtaceae), using the Electrical Penetration Graph (EPG). Fifteen females of each aphid species were monitored during 24h using a DC-EPG GIGA-4 monitor. The time spent in phloem phase (waveforms E1 and E2) was 13.6% of the total recording time for G. ficicola and 0.8% for G. psidii. The average time in the pathway phase (waveforms C and pd) represented 50% of the total time for both species. Aphids spent more time in non-penetration and stylet pathway activities than in the phloem phase or actual feeding. The principal component analysis (PCA) showed that the two species formed different groups in relation to EPG parameters, despite some overlapping. The probing patterns with multiple penetrations of short duration in the sieve elements for both species may indicate apparent unsuitability for sustained feeding on their respective host plants. These results suggest that these two exotic species are in the process of adaptation to their host plants in their new environment and/or the plants may present either chemical or physical barriers against these insects.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000300005	
Editor: 	Sociedade Entomológica do Brasil	
Relação: 	10.1590/S1519-566X2011000300005	
Formato: 	text/html	
Fonte: 	Neotropical Entomology  v.40 n.3 2011	
Fonte: 	info:eu-repo/semantics/openAccess