Fraser Valley Case Study

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Introduction The Fraser Valley contains the eastern part of the Lower Mainland of British Columbia (BC) and extends from Abbotsford and Mission to Hope. It has a mild climate with warm summers and mild winters, which is prior to produce apple crop (Climate Action Initiative, 2015; A Guide to BC’s Agriculture Resources, 2014). Apples are one of the most valuable edible horticulture crops in BC. BC produces 21% of apple in Canada (Agriculture and Agri-Food Canada, 2013). About 2% of BC apples are grown in the Fraser Valley (A Guide to BC’s Agriculture Resources, 2014). Pests are one of the most serious problem in apple orchards in the Fraser Valley. To control the pests, Integrated Pest Management (IPM) has been promoted today. It is a systematic …show more content…
2017). It is not yet established in the Okanagan Valley where produces 98% of BC apples (BC Ministry of Agriculture, 2016b; A Guide to BC’s Agriculture Resources, 2014). There is an urgent need to encourage all citizens to cooperate in order to stop the spread of the pest from Fraser Valley (BC Ministry of Agriculture, 2016b).
After females insert their eggs (Fig 3), apple is damaged by tunnelling of larvae through the flesh of fruit (Fig 4, 5). As the growth of larvae, the tunnels will become larger inside the fruit, which would eventually drop prematurely or mushy. Rotted fruit will appear during storage even with a slight infestation (BC Ministry of Agriculture, 2017). This pest would cause up to 100% yield loss (Agriculture and Agri-Food Canada, …show more content…
The primary infection often occurs on new leaves in the spring from the overwintered apple scab in infected leaves on the orchard (Agriculture and Agri-Food Canada, 2013). The typical peak season of primary scab is from mid spring to mid summer (BC Ministry of Agriculture, 2016a). Then, lesions develop on the leaves and release asexual spores (conidia) that causes the secondary infections (Agriculture and Agri-Food Canada, 2013). In the second stage, apple scab will remain active and spread largely (BC Ministry of Agriculture, 2016a). It is tough to suppress apple scab during the spring with high precipitation (Agriculture and Agri-Food Canada, 2013). Therefore, control methods could be applied when the apple scab overwinters in the fallen

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