Which of the following are not causative organisms of plant diseases?
Answer Details
Fungi, viruses, bacteria, and nematodes are all causative organisms of plant diseases.
Fungi are a type of organism that can cause diseases in plants. They are responsible for many common plant diseases, such as powdery mildew, rust, and black spot.
Viruses are another type of organism that can cause diseases in plants. They can cause a wide range of symptoms, such as yellowing or mottling of leaves, stunting of growth, and even death of the plant.
Bacteria are also known to cause plant diseases. They can infect plants through wounds or natural openings, causing symptoms such as wilting, leaf spots, and rot.
Nematodes are tiny, worm-like organisms that can live in the soil and infect plant roots, causing damage to the plant's root system and reducing its ability to take up water and nutrients.
Cercariae, on the other hand, are not causative organisms of plant diseases. They are a type of larva that can infect snails and other animals, but they do not infect plants.