SciELO - Scientific Electronic Library Online

 
vol.18 número2FITOSSOCIOLOGIA DOS ESTRATOS ARBÓREO E DE REGENERAÇÃO NATURAL EM UM POVOAMENTO DE ACÁCIA-NEGRA ( Acacia mearnsii De Wild.) NA REGIÃO DA FLORESTA ESTACIONAL SEMIDECIDUAL DO RIO GRANDE DO SULFLORÍSTICA E CLASSIFICAÇÃO DA REGENERAÇÃO NATURAL EM FLORESTA OMBRÓFILA MISTA NA FLORESTA NACIONAL DE SÃO FRANCISCO DE PAULA, RS índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Ciência Florestal

versão impressa ISSN 0103-9954versão On-line ISSN 1980-5098

Resumo

PENTEADO, Susete do Rocio Chiarello; OLIVEIRA, Edílson Batista de  e  IEDE, Edson Tadeu. USE OF SEQUENTIAL SAMPLING TO EVALUATE THE EFFICIENCY OF Deladenus (Beddingia) siricidicola (NEMATODA: NEOTYLENCHIDAE) PARASITISM ON Sirex noctilio ADULTS (HYMENOPTERA: SIRICIDAE). Ciênc. Florest. [online]. 2008, vol.18, n.2, pp.223-231. ISSN 1980-5098.  http://dx.doi.org/10.5902/19805098459.

The nematode Deladenus (Beddingia) siricidicola (Nematoda: Neotylenchidae) is the main control agent of the woodwasp Sirex noctilio (Hymenoptera: Siricidae). It acts by female sterilization and reaches parasitism levels close to 100%, averaging 70%. The monitoring of the efficiency of this nematode parasitism has been done by evaluating the presence of the worm in the reproductive apparatus of male and female wasps, but this process is time consuming and expensive when applied to large samples. The objective of this research was to apply the sequential sampling which has proved to be a viable alternative to evaluate the efficiency of the parasitism of Deladenus (Beddingia) siricidicola on Sirex noctilio. It is based on a variable sample size that is defined in function of the results obtained from the survey, reducing the costs of sampling and obtaining a satisfactory precision level. Some aspects of parasitism by Deladenus (Beddingia) siricidicola are addressed.

Palavras-chave : sampling; nematodes; woodwasp; Pinus pest.

        · resumo em Português     · texto em Português     · Português ( pdf )