Leaf-footed bugs, Leptoglossus phyllopus, were collected from a field containing ergot-infected sorghum plants in Texas, USA. Ergot spores from the external body parts of the insects were germinated on water agar plates to determine viability. Spores from fungal pathogens of sorghum (Alternaria...

Preliminary screening assays were carried out on 17 isolates from five fungal species Beauveria bassiana, Lecanicillium muscarium, Metarhizium anisopliae, Isaria farinosa, and I. fumosorosea. The three most effective isolates against Peregrinus maidis (Hemiptera: Delphacidae) were B. bassiana CEP...

Investigations were conducted in 3 areas of Tucumán, Argentina, during 2002-05 to identify tobacco diseases and develop methods of disease control. The results of optical microscopy and pathogenicity tests revealed that groundnut ringspot tospovirus (GRSV) was the main disease of tobacco. ...

Papua New Guinea (PNG) is the centre of origin for several Saccharum species, including S. officinarum, the original species used in commercial production. There are a number of endemic diseases that affect commercial sugar production in PNG on the commercial estate of Ramu Sugar Limited at Gusap,...

The interactions between the coffee berry borer, berries and fungi species range from mutualism to parasitism. We evaluated the presence of fungi associated with (i) the borer and, (ii) berries of Coffea canephora in Machadinho d'Oeste, Rondonia, Brazil. At the borers' tegument external surface, we ...

The Asian citrus psyllid, D. citri, is particularly harmful to citrus plantations as it is one of the two psyllid vectors of the citrus greening disease or Huanglongbing (Liberobacter asiaticum). This disease, which limits the longevity of trees, is due to an intracellular bacterium which mainly...

The pine shoot beetles Tomicus minor and T. piniperda are common in the Nordic countries. Of these, T. piniperda may attack and kill living but severely stressed trees, whereas T. minor has never been reported to be individually responsible for killing live trees. Both species are associated with...

The occurrence of beech (Fagus sylvatica) necrotic disease (tracheomycotic type) and the biotic vectors of this disease were investigated in a survey conducted in 40 sites in Slovakia during 1996-97. Fungal species associated with beech necrotic disease include those of the genera Fusarium,...

Three species of exotic bark beetles, Hylastes angustatus, Hylurgus ligniperda and Orthotomicus erosus, occur on Pinus spp. in South Africa. Although these bark beetles have been reasonably intensively studied in South Africa, little is known regarding their associated fungi. In this study, 1558...

To determine the presence of Fusarium graminearum [Gibberella zeae] on wheat midges (Sitodiplosis mosellana), adult females were captured from a spring wheat (Triticum aestivum) field near Quebec City (Canada) and plated on potato dextrose agar. A mouth aspirator was used to capture live midges in...