Multiple choice

Field crops are invested by a large number of.........

  1. weeds,insectpest

  2. insectpest,disease

  3. disease,seeds

  4. weeds,insectpest,disease
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Field crops face three major biotic threats: weeds (competition), insect pests (direct damage), and diseases (pathogens). All three together cause maximum yield losses.

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