Data/hora: 12/06/2024 10:51:27

Provedor de dados: | 44
País: | Brazil
Título: | Nymph and adult biology and seasonal abundance of Loxa deducta (Walker) on privet, Ligustrum lucidum
Autores: | Panizzi,Antônio R.; Mourão,Ana P. M.; Oliveira,Émerson D. M.
Data: | 1998-06-01
Ano: | 1998
Palavras-chave: | Insecta; Hemiptera; Heteroptera; Pentatomidae; Bioecology; Host plant.
Resumo: | Laboratory and field studies indicated that privet, Ligustrum lucidum (Oleaceae), is an important host plant of the neotropical stink bug, Loxa deducta (Walker) (Hemiptera: Pentatomidae) in northern Paraná state. Survivorship of nymphs was high (82.9%) when fed immature fruits of privet. Nymph developmental time (from the 2nd stadium to adult) lasted &lt;FONT FACE=Symbol&gt;»&lt;/FONT&gt; 49 d. At adult emergence, females attained greater (199.5 mg) fresh body weight than males (180.0 mg). Survivorship of adult L. deducta decreased gradually with time. Mean total longevity was &lt;FONT FACE=Symbol&gt;»&lt;/FONT&gt; 62 d for females and &lt;FONT FACE=Symbol&gt;»&lt;/FONT&gt; 55 d for males. Of 30 females observed, 25 (83.3%) oviposited when fed fruits of privet. The preoviposition period was 13.9 (± 0.51) d; fecundity was 17.8 (± 1.60) egg masses/female, and 236.0 (± 21.98) eggs/female; egg hatchability was 65.0 (± 6.48)%. Considering the total period of 4-wks, the percentage increase in fresh body weight was &lt;FONT FACE=Symbol&gt;»&lt;/FONT&gt; 70% for females, and &lt;FONT FACE=Symbol&gt;»&lt;/FONT&gt; 45% for males. During summer months (December to February), relatively low numbers of insects were collected on privet. During March, nymph and adult populations increased reaching a peak during April, and decreasing in May at the end of autumn. This tendency continued throughout winter (June-July-August), reaching almost zero in September at the beginning of spring, and increasing somewhat again in October-November.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000200005
Editor: | Sociedade Entomológica do Brasil
Relação: | 10.1590/S0301-80591998000200005
Formato: | text/html
Fonte: | Anais da Sociedade Entomológica do Brasil  v.27 n.2 1998
Fonte: | info:eu-repo/semantics/openAccess