Recent studies have shown that the spatial pattern of nests of an arboreal ant, Azteca instabilis (Hymenoptera: Formicidae), in a tropical coffee agroecosystem may emerge through self-organization. The proposed self-organization process involves both local expansion and density-dependent mortality of the ant colonies. We explored a possible mechanism for the density-dependent mortality involvin...

Dialeurodes citri is a major pest in citrus producing areas, and large-scale outbreaks have occurred increasingly often in recent years. Lecanicillium attenuatum is an important entomopathogenic fungus that can parasitize and kill D. citri. We separated the fungus from corpses of D. citri larvae. However, the sound immune defense system of pests makes infection by an entomopathogenic fungus dif...

Abstract Background The misuse of chemical insecticides has developed the phenomenon habituation in whitefly Bemisia tabaci (Gennadius) causing enormous economic losses under geothermal greenhouses southern Tunisia. Results In order to develop means biological control appropriate conditions Tunisia, efficacy native strain predator Nesidiocoris tenuis Reuter (Hemiptera: Miridae) and two entomopa...

The aim of the study was to determine effect copper application in combination with organic materials on genus composition and intensification occurrence entomopathogenic fungi soil. three-year pot experiment carried out greenhouse conditions. set up a completely random design, taking into account two factors: dose fertilization. Soil samples for tests were collected third year experiment, spri...

Ilość szkodliwych ksenobiotyków w ekosystemach nieustannie się zwiększa, ze względu na dużą dostępność i wykorzystanie detergentów, pestycydów, farmaceutyków, rozpuszczalników czy ropy naftowej. Takie substancje chemiczne jak fenol, monocykliczne węglowodory aromatyczne, policykliczne alifatyczne oraz związki fosfonoorganiczne są wyjątkowo trwałe niskich temperaturach zwiększoną gęstość mniejsz...

the aphid species, cinara pini (linnaeus, 1758) reported in our previous work as a new aphid on pinus trees for iran, was described using the classic method and through analysis of coi gene sequence. in the next step, we addressed the efficiency of the entomopathogenic fungus, lecanicillium longisporum (zimm.) zare and gams strain lrc 190, on the aphid. the fungus was administered to the second...