Plant Diseases - GCSE Biology

🦊 In this GCSE Biology video, we explain that plants, like humans, can suffer from communicable diseases. Two specific plant diseases mentioned are Tobacco Mosaic Virus, a viral disease causing a mosaic pattern of discoloration on leaves, and Black Spot, a fungal disease leading to purple or black spots on leaves. Both diseases reduce the plant's ability to photosynthesize, affecting growth. Additionally, the video discusses that insects like aphids can also infect plants, causing leaves to curl and discolor by sucking sap, which reduces growth. A common control method for aphids in gardening involves encouraging ladybirds, which prey on aphids, although this specific predator-prey relationship is not necessary for exams. The focus for exams should be on understanding plant pathogens like Tobacco Mosaic Virus and Black Spot and their effects on plant health.

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