The pecan weevil, Curculio caryae (Horn), is a key pest of pecans in the Southeast. Entomopathogenic nematodes have been shown to be pathogenic toward the larval stage of this pest. Before this research, only three species of nematodes had been tested against pecan weevil larvae. In this study, the virulence of the following nine species and 15 strains of nematodes toward fourth-instar pecan we...

The effect of cadmium, copper, lead, zinc, manganese and magnesium on entomopathogenic nematodes S. feltiae was tested under laboratory conditions. The mortality of nematode invasive larvae, their pathogenicity expressed as test insect G. mellonella mortality and reproduction from the test insect bodies were investigated. It was revealed that cadmium, copper, lead and zinc affected an increase ...

• Metarhizium VOCs, 1-octen-3-ol and 3 octanone, influence behaviour of EPN. High doses octanone repel or kill EPN infective juveniles. volatiles reduce infectivity insect hosts. VOCs immobilise insects. Volatiles affect reproduction inside host. The entomopathogenic fungus (EPF) brunneum occupies the same ecological niche as nematodes (EPN), with both competing for insects a food source in rhi...

In Brazil, countless insect species attack and damage sugarcane (Saccharum officinarum L.), which is an extremely important crop since it planted on more than 10 million hectares. Among these insects, the billbug, Sphenophorus levis (Coleoptera: Curculionidae), of great importance as larvae open tunnels in rhizome plant, causing high losses. This attracted mainly to vinasse, liquid fraction gen...

Systemic crop protection using endophytic isolates of entomopathogenic fungi is at the forefront IPM. Nonetheless, any potential trade-offs between virulence and behaviour must be elucidated if they are to effectively used in pest management strategies. Here we investigated adaptation an isolate Beauveria bassiana following successive passage through melon, tomato cotton tissues. Plants were sp...

maceae) is a nematophagous fungus that has been shown to be effective against a wide spectrum of plantparasitic nematodes (Rumbos and Kiewnick, 2006). The commercial strain 251 (PL251) has recently received US registration as a biological nematicide under the trade name MeloCon WG, whereas it is undergoing registration procedure as BioAct WG in Europe (Kiewnick and Sikora, 2006). Entomopathog...

Abstract Background Entomopathogenic nematodes (EPNs) have a great potential as biocontrol agent for wide range of insect pests. EPNs attracted much interest around the world to study their distribution, virulence, and usage in IPM programs. This research was conducted identify steinernematids M.22 M.313, which were isolated during survey different agricultural ecological systems, Syrian coasta...

Among Legionella species, which are recognized to be pathogenic for humans, L. gormanii is the second prevalent causative agent of community-acquired pneumonia after L. pneumophila. Anti-L. gormanii activity of Galleria mellonella hemolymph extract and apolipophorin III (apoLp-III) was examined. The extract and apoLp-III at the concentration 0.025 mg/ml caused 75% and 10% decrease of the bacter...