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by lisa lafontaine
while we hardly need to extol the virtue of plants, there is an ongoing movement to bring attention to the pests that threaten them, why we should care, and what we can do about it.
healthy plants are the foundation for all life, ecosystems and food security. when we protect plants, we protect life. that is why countries around the world—including canada—are engaged in the international year of plant health.
in december 2018, the united nations general assembly declared 2020 as the international year of plant health (iyph). the year is a once-in-a-lifetime opportunity to raise global awareness on how protecting plant health can help end hunger, reduce poverty, protect the environment and boost economic development.
safeguarding crops, ecosystems, forests and natural habitats from invasive plant pests and diseases is a tall order. we do this by focusing on preventing plant pests from spreading, because just as with human health, preventing a problem is far more cost effective than managing a full-blown emergency.
why we care
oxygen, food and income are only three of the crucial benefits of healthy plants. the list is much longer. plants give us medicine, wood for building materials, and fibres for clothing. they provide protection from the elements. less tangible and more life enriching, plants and green spaces provide comfort and a healthy sense of well-being. canada is home to globally important biodiversity, including one-third of the world’s boreal forests, one-fifth of its freshwater resources, the longest coastline on the planet, and a diverse range of ecosystems. canadian crop industries generate over $34 billion per year in exports.1 our forest industry contributes $24.6 billion to the economy.
pests and threats
plant pests are one of the main drivers of losses in biodiversity and crop productivity. they are responsible for the loss of up to 40 percent of global food crops, and for trade losses in agricultural products exceedingus$220 billion annually.3 insects, weeds and diseases have established themselves and spread more easily due to increased trade in a diverse range of plant commodities and because of climate change.