Understanding plant diseases and threats
Despite the importance of plant health we are one of the few botanic gardens around the world with an active plant pathology research and diagnostic capability so we play an important role nationally in raising awareness of the impact of plant diseases in horticulture and in the natural environment.
Botanic Gardens Conservation International, the peak body for botanic gardens, developed several years ago the concept of an International Plant Sentinel Network, where botanic gardens play a role in detecting new arrivals of insect pests and disease causing organisms such as fungi, bacteria and viruses.
Of course botanic gardens can also play a critical role in raising awareness of the importance of plant health – again we are leading the way, thanks to the Foundation and Friends of the Gardens, with our interpretation and opening up of the PlantClinic facility at the Royal Botanic Garden Sydney. Our Australian botanic garden community has recently teamed up with Plant Health Australia to develop a plant health sentinel network across gardens nationally.
Why botanic gardens matter
Botanic gardens are one of the most visited tourist destinations in Australia with many millions of visitors each year, a great proportion of them from overseas. So it makes sense that one of the most likely places where a new disease or pest incursion to occur would be in a botanic garden – the environment is usually favourable, there are a diversity of different potentially susceptible host plants and the gardens are often the first place visited when tourists get off a plane (what better way to walk off the jet lag!).
A group of target diseases and pests have been selected for surveillance in the first component of the program and a number of horticultural staff from most of the major botanic gardens trained in detection methods, monitoring and reporting.
The next component of the program will be extending this knowledge to volunteer groups like the Foundation and Friends of the Gardens at a ”bootcamp” run by Plant Health Australia in Melbourne to start to build this expertise which can then be extended more widely, not only into the Gardens but also into community gardens and bushland.
As we say often Plants = Life and healthy plants are the foundation of a healthier life, more effective ecosystem functions and improved food security. Plant pests and diseases damage crops, reducing the availability of food and increasing its cost.
Sustaining plant health protects the environment, forests and biodiversity from plant pests, addresses the effects of climate change, and supports efforts to end hunger, malnutrition and poverty. The International Year of Plant Health will be a great opportunity to once again stress the importance of plants and overcome some of that "plant blindness."
If you would like to find out more about how we work to future-proof our planet book the Secret of the Seed Vault tour at the Australian PlantBank or get in touch with the Friends and Foundation of the Garden to support our ongoing scientific research.