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Wrażliwość larw Hylobius abietis (L.) na rodzime gatunki i szczepy nicieni entomopatogenicznych

100%

Tumalis D., Skrzecz I., Mazurkiewicz A., Pezowicz E., Goral K.

Sylwan

2013

tom 157

nr 10

The use of entomopathogenic nematodes (Steinernema and Heterorhabditis spp.), against the large pine weevil Hylobius abietis (L.) is currently studied in many countries. They show a great potential of nematodes for H. abietis control in laboratory and field experiments. In 2011 similar studies began in Poland to develop new biological control method of H. abietis with the use of native isolates of the nematodes. The first laboratory stage of the experiments pointed at the estimation of biological activity of 3 native isolates: 2 of Steinernema feltiae (Filipjev) and 1 of S. kraussei (Steiner). The tested nematodes were applied at the dose of 100 invasive larvae per 1 larva of H. abietis. After 48 hours H. abietis larvae were sectioned and examined for a determination of their mortality, extensivity and intensity of infection. No statistical differences were found between larvae mortality and extensivity of infection by tested isolates of nematodes. In all variants the mortality and extensivity of infection were high and reached 92−100% and 80−86% respectively. Statistical differences were found between the intensity of infection, which were the highest in case of S. feltiae Zag15. The obtained results indicated different activity of nematode isolates within one speies.

Ograniczanie wyników

1 Sylwan

1 Goral K.

1 Mazurkiewicz A.

1 Pezowicz E.

1 Skrzecz I.

1 Tumalis D.

1 2013

Wyniki wyszukiwania

Wrażliwość larw Hylobius abietis (L.) na rodzime gatunki i szczepy nicieni entomopatogenicznych