Identifying Plant Diseases Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what's on both sides.
  • Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What is the first step when diagnosing a plant disease in the field?

Look carefully for visible symptoms on leaves, stems, roots and the whole plant.

Name two common leaf symptoms that suggest a plant disease.

Spots on leaves and yellowing (chlorosis).

How can you tell damage may be from pests rather than disease?

Check for insects or larvae, bite marks or holes, and droppings on or near the plant.

What simple resources can help you identify a plant disease from its symptoms?

Use plant guides and reliable websites with photos and identification keys.

What are the three main ways to identify a plant disease?

Observe symptoms, compare with trusted sources, and confirm with lab tests.

What does a monoclonal antibody test kit detect in plant sap?

It detects proteins from a pathogen, called antigens. This confirms infection.

How can a microscope help identify a plant disease?

You can see fungal spores or bacteria in plant tissue. This helps name the pathogen.

What is PCR used for when identifying plant diseases?

It copies the pathogen’s DNA. This lets you detect it even when only a tiny amount is present.

Which symptom suggests nitrate ion deficiency in a plant?

Stunted growth with pale, yellowing older leaves.

Which symptom suggests magnesium ion deficiency in a plant?

Chlorosis: yellowing between the veins, especially on older leaves.

What does a mosaic pattern of light and dark patches on leaves suggest?

A viral infection.

Why is accurate identification of a plant disease important?

It helps you choose the right treatment and stop the spread.

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