PSHB identification and sample submission - Hortgro Science

Is it PSHB?

Start here

Photo credit Anandi Bierman

Do you observe multiple, small, round entry-holes accompanied by (1) wet staining or; (2) gumming or; (3) white powder/ frass/ sawdust.

Is the entry-hole ±1mm.
Scrape away bark to get a better view.

YES

Is the tree on the list of reproductive hosts?

YES

I. Confirm identification of infestation
II. How to dispose of infested material
III. Do’s and Don'ts

Symptoms likely caused by other insects or diseases

Consult horticulturist, technical pest control advisor, Stellenbosch Insect Identification or Stellenbosch Disease clinic

STEP 1:
Take a photo of the entire tree documenting any wilting or dieback

STEP 2:
Take a photo to assist in identification of tree, include: bark, leaves, flowers and seeds (if available).

STEP 3:
Take a photo of a couple of the observed entry-holes

STEP 4:
Use a knife to remove bark around a single entry-hole and take a photo. Place wood with fungus staining in a container.

STEP 5:
If a beetle is collected, place (dead) beetle in a container (ethanol).

Photo credit Anandi Bierman

STEP 6:
Keep samples cool. Send images and GPS location to pshb@hortgro.co.za Hortgro will contact you with more information.