By Lize Reinecke
Apples are produced in abundance worldwide and is also a very important economic crop. The fly in the applesauce is the disease caused by Venturia inaequalis (apple scab). This disease causes lesions on leaves and fruits which causes the fruit to crack and can even cause deformed fruit growth.
The following flow diagram summarizes the control measures that can be used in terms of the life cycle of the host plant:
Table 1 indicates different types of control strategies and the results that one can achieve:
The apple industry requires high quality apples to be delivered either to the local or international market. It is therefore important to apply preventative and control measures against this disease to ensure proper growth.
Bowers, 2011. Apple Scab. Available at https://extension.tennessee.edu/publications/Documents/W289-O.pdf [Accessed 2019/10/15].
Koetter, 2019. Apple scab of apples and crabapples. Available at https://extension.umn.edu/plant-diseases/apple-scab#cultural-practices-1165362 [Accessed 2019/10/15].
Peter, 2017. Apple Disease – Apple Scab. Available at https://extension.psu.edu/apple-disease-apple-scab [Accessed 2019/10/15].
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PNRC, 2019. Apple Scab. Available at https://www.planetnatural.com/pest-problem-solver/plant-disease/apple-scab/ [Accessed 2019/10/15]