A 3-year study was conducted in a Pinus halepensis reforestation of Apulia Region (Southern Italy) injecting IJs (infective juveniles) of Steinernema feltiae, S. carpocapsae and Heterorhabditis bacteriophora in aqueous and gel suspensions (Idrosorb SR 2002 [Nigem®], and Compex) into the nests of Thaumetopoea pityocampa caterpillar. This study showed that the gel suspensions do not percolate and that slow release of water from the gels allowed nematodes to survive and complete their life cycle in the host. Results demonstrate the feasibility of reducing overwintering larval populations by injecting gel suspension of S. feltiae. We found no negative effects on the endoparasite Phryxe caudata.
Efficacy and persistence of entomopathogenic nematodes in controlling larval populations of Thaumetopoea pityocampa (Lepidoptera: Thaumetopoeidae)
TARASCO, Eustachio
2002-01-01
Abstract
A 3-year study was conducted in a Pinus halepensis reforestation of Apulia Region (Southern Italy) injecting IJs (infective juveniles) of Steinernema feltiae, S. carpocapsae and Heterorhabditis bacteriophora in aqueous and gel suspensions (Idrosorb SR 2002 [Nigem®], and Compex) into the nests of Thaumetopoea pityocampa caterpillar. This study showed that the gel suspensions do not percolate and that slow release of water from the gels allowed nematodes to survive and complete their life cycle in the host. Results demonstrate the feasibility of reducing overwintering larval populations by injecting gel suspension of S. feltiae. We found no negative effects on the endoparasite Phryxe caudata.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
