Polyphagous Shot Hole Borer (PSHB) Workshop

Polyphagous Shot Hole Borer (PSHB) Workshop will be held on around the country.

  • Johannesburg – Saturday the 9th March 2019
  • Cape Town – Saturday the 30th March 2019

The Workshop covers the following topics:

PSHB – Habitat and life cycle
PSHB – Control and treatment
South African Law and Act 36

 

Johannesburg PSHB Workshop Agenda and Programme – Saturday the 9th March 2019

Cape Town PSHB Workshop Agenda and Programme – Saturday the 30th March 2019

This session is intended for service providers who are not familiar with treating trees for PSHB, and for the public who want to learn more about PSHB. This one-day training is limited to 20 people.

iol.co.za – Tree borer activists slam city’s ‘inaction’

Tree borer activists slam city’s ‘inaction’

 

“The City of Johannesburg has been accused of “misleading” the public about the extent of the polyphagous shothole borer (PSHB) infestation, which is killing off some of the city’s trees.”

“While Johannesburg City Parks and Zoo last week said it was too early to classify the borer beetle outbreak as a disaster, the Borer Action Group (BAG) countered that this was another attempt “to minimise this environmental threat to excuse its inaction”

View the article here

2019-02-26
Sheree Bega
Saturday Star
iol.co.za

iol.co.za – City declares war on invasive beetle damaging thousands of trees

City declares war on invasive beetle damaging thousands of trees

Cape Town – The City of Cape Town has announced an operational plan to deal with an invasive beetle species threatening trees in the metropole and surrounding areas after it invaded and damaged thousands of trees in other parts of the country.”

An invasive beetle, polyphagous shot hole borer (PSHB), has in other parts of the country resulted in more than 10 000 trees being lost, which could have an adverse effect on the ecosystem and take years to replace, according to reports quoting academic research.

Read the article here

STAFF WRITER
2019-02-08
iol.co.za

capetownetc.com – Invasive beetle species threatens local trees

Invasive beetle species threatens local trees

An invasive beetle species has destroyed more than 10 000 trees across the country and poses a serious threat to trees in the metropole and surrounding areas of Cape Town.

The City of Cape Town Mayoral Committee Member for Community services and Health, Zahid Badroodien, explains that it is the City’s duty to protect the area’s natural fauna.

PSHB beetles attack more than 300 tree species countrywide, and more than 130 of these are susceptible to FD, including oaks, most willows, plane trees, avocado trees, some acacias, and most maples.

View article here

2019-02-08
Ishani Chetty
Cape Town ETC
capetownetc.com

southcoastherald.co.za – Borer beetle battle: Arm yourself now

Borer beetle battle: Arm yourself now

This course is oriented towards arborists and the public who want to learn more about treating infested trees and controlling the spread of PSHB.

Are you an arborist wanting to find out how to treat trees for polyphagous shot hole borer (PSHB) infestation? Or are you a resident wanting to mobilise your community into action? Do you need data to manage the spread of PSHB within South Africa? Or are you just desperate to save the dying trees in your garden?

View article here

AUTHOR
Mid South Coast Mail
2019-02-02

Facebook – Polyphagous Shot Hole Borer (PSHB) Training Workshop

Polyphagous Shot Hole Borer (PSHB) Training Workshop

Heuristic Guru just hosted the first Polyphagous Shot Hole Borer (PSHB) Training Workshop in Sandton at Workshop 17. Huge thanks to all contributors toward this body of knowledge during the course of the past year, and also to Prof. Wilhelm de Beer from FABI (University of Pretoria) for his great efforts.

Read the article here

Hilton Fryer
2019-01-19

Journal of Economic Entomology – Evaluation of Emamectin Benzoate and Propiconazole for Management of a New Invasive Shot Hole Borer and Symbiotic Fungi in California Sycamores

Evaluation of Emamectin Benzoate and Propiconazole for Management of a New Invasive Shot Hole Borer and Symbiotic Fungi in California Sycamores

This journal article shows that Emamectin Benzoate and Propiconazole is effective as a reactionary and preventative treatment for Polyphagous Shot Hole Borer (PSHB). Whilst specific trees can be successfully treated, sustainable control options for PSHB entails maintaining tree vigor and removal of severely infested host material.

Read the article here

Abstract:
The polyphagous shot hole borer (Euwallacea nr. fornicatus, Coleoptera: Curculionidae: Scolytinae), an exotic and invasive ambrosia beetle, was recently found attacking a number of tree species in Los Angeles, Orange, Riverside, and San Diego Counties in southern California. Their colonization and subsequent inoculation of a suite of symbiotic fungi that cause Fusarium Dieback, has resulted in extensive mortality of some tree species, including, California sycamore (Platanus racemose Nutt.). There are no sustainable control options for polyphagous shot hole borer other than maintaining tree vigor and removal of severely infested host material. The effectiveness of therapeutic treatments of an injected systemic insecticide containing emamectin benzoate (EB) alone and in combination with a systemic fungicide, propiconazole (P), was evaluated over a 4-yr period for maintaining the health of individual sycamore trees infested by polyphagous shot hole borer. All treatments containing EB reduced levels of polyphagous shot hole borer colonization and associated sap flow at attack sites compared to untreated controls. A second trial evaluated preventative treatments of EB and P alone or combined to protect individual sycamore from colonization by polyphagous shot hole borer. After 45 mo posttreatment, all treatments significantly reduced polyphagous shot hole borer attack levels and successful attacks compared to untreated controls (EB + P > EB alone > P alone). We concluded that EB alone or combined with P are acceptable therapeutic and preventative treatments for management of polyphagous shot hole borer in California sycamore in southern California.

Keywords: ambrosia beetle, chemical control, polyphagous shot hole borer, tree injection

Donald M Grosman Akif Eskalen Cavell Brownie
2019-01-12
Journal of Economic Entomology

entomologytoday.org – So Many Shot Hole Borers: New Research Charts Four Nearly Identical Species

So Many Shot Hole Borers: New Research Charts Four Nearly Identical Species

 

PSHB - four-species-of-Euwallacea

 

The four newly delineated species of the Euwallacea fornicatus species complex are, from left to right, E. fornicatior, E. fornicatus, E. whitfordiodendrus, and E. kuroshio. The wood-boring beetles known as various kinds of “shot hole borers” are so similar in morphological characteristics while also variable in body dimensions that their appearance can’t be reliably used for differentiating specimens. (The four shown here vary in size but some of their cousins within each species can all range from 1.8 to 2.9 millimeters long.) New research has used molecular genetic techniques to identify the different species within the complex. (Photo credit: Demian Gomez)

View article here

Jiri Hulcr and Jackson Landers
2019-01-07
entomologytoday.org