Publications

Nov 2016

PCR bias associated with conserved primer binding sites, used to determine genotype diversity within Citrus tristeza virus populations

Read DA, Pietersen G

Journal of Virological Methods

Citrus tristeza virus (CTV) is present in almost all of the major citrus production areas where it continues to reduce the...

Nov 2016

First report of a Turnip Yellows virus in association with the Brassica Stunting Disorder in South Africa

New SA, van Heerden SW, Pietersen G, Esterhuizen LL

Plant Disease

Nov 2016

Comparison of multiple viral population characterization methods on a candidate cross-protection Citrus tristeza virus (CTV) source

Kleynhans J, Pietersen G

Journal of Virological Methods

Citrus tristeza virus (CTV) is the most economically important virus found on citrus and influences production worldwide. The 3'...

Oct 2016

New Raffaelea species (Ophiostomatales) from the USA and Taiwan associated with ambrosia beetles and plant hosts

Simmons DR, De Beer ZW, Huang Y-T, Bateman CC et al.

IMA Fungus

Abstract: Raffaelea (Ophiostomatales) is a genus of more than 20 ophiostomatoid fungi commonly occurring in symbioses with...

Nov 2016

Genetic basis for high population diversity in Protea-associated Knoxdaviesia

Aylward J, Steenkamp ET, Dreyer LL, Roets F et al.

Fungal Genetics and Biology

Sexual reproduction is necessary to generate genetic diversity and, in ascomycete fungi, this process is controlled by a mating...

Dec 2016

Minimizing the disruptive effect of Ips grandicollis (Coleoptera: Scolytinae) on biocontrol of Sirex noctilio

Clarke CW, Carnegie AJ, Yousuf F, Bashford R et al.

Forest Ecology and Management

Sirex noctilio Fabricius (Hymenoptera: Siricidae) is an invasive wood wasp that can cause significant tree mortality to Pinus....

Sep 2015

Seasonal phenology of Sirex nigricornis (Hymenoptera: Siricidae) in Arkansas with implications for management of Sirex noctilio

Hartshorn JA, Fisher DM, Galligan LD, Stephen FM

Florida Entomologist

The southeastern United States contains a multi-billion dollar pine timber industry that could be affected significantly by the...

2016

Molecular identification of Deladenus proximus Bedding, 1974 (Tylenchida: Neotylenchidae), a parasite of Sirex nigricornis (Hymenoptera: Siricidae)

Hartshorn JA, Fisher JR, Riggins JJ, Stephen FM

Nematology

Parasitic nematodes were isolated from Sirex nigricornis (Hymenoptera: Siricidae) females collected in baited traps across pine...

Sep 2016

Interactions among latitude, nematode parasitization, and female Sirex nigricornis (Hymenoptera: Siricidae) fitness

Hartshorn JA, Chase KD, Galligan LD, Riggins JJ et al.

Environmental Entomology

Sirex nigricornis F. (Hymenoptera: Siricidae) is an innocuous pine-inhabiting woodwasp native to eastern North America, utilizing...