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Articles 1 - 2 of 2
Full-Text Articles in Forest Sciences
Pathogenicity Of Paecilomyces Spp. To The Glasshouse Whitefly, Trialeurodes Vaporariorum, With Some Observations On The Fungal Infection Process, Ayhan Gökçe, M. Kubi̇lay Er
Pathogenicity Of Paecilomyces Spp. To The Glasshouse Whitefly, Trialeurodes Vaporariorum, With Some Observations On The Fungal Infection Process, Ayhan Gökçe, M. Kubi̇lay Er
Turkish Journal of Agriculture and Forestry
This study was carried out to determine the infection rates of 9 Paecilomyces fumosoroseus isolates and 1 Paecilomyces lilacinus isolate on the glasshouse whitefly (GWF), Trialeurodes vaporariorum. Furthermore, the infection progress of P. fumosoroseus was observed on the insect using light and scanning electron microscopes. Bioassays were carried out on second instar nymphs by the application of a spore suspension of each isolate. The mortality data were recorded 3 and 6 days after the application. The effect of Paecilomyces isolates increased as the incubation time was extended. Seven isolates caused significant mortality to the GWF nymphs. The most virulent isolates, …
A Retrospective Analysis Of Known And Potential Risks Associated With Exotic Toadflax-Feeding Insects, Sharlene E. Sing, Robert K.D. Peterson, David K. Weaver, Richard W. Hansen, George P. Markin
A Retrospective Analysis Of Known And Potential Risks Associated With Exotic Toadflax-Feeding Insects, Sharlene E. Sing, Robert K.D. Peterson, David K. Weaver, Richard W. Hansen, George P. Markin
USDA Forest Service / UNL Faculty Publications
To date, eight exotic toadflax-feeding insect species have been accidentally or intentionally introduced to North America. Reports on their establishment and impact have been recorded for more than 60 years. Environmental risks linked to biological control of toadflax were identified in terms of host resources and undesirable impacts on the target species through the critical review of this record. Data gaps revealed during this retrospective analysis are addressed through suggestions for future research and associated experimental methodologies. Known and potential impacts of toadflax-feeding insects on both invasive toadflax and non-target species are examined. Recent programmatic demands for demonstrated agent efficacy …