Question

Insect resistance is the ability of certain host strains to produce larger yields of good quality than others at the same level of infestation under similar environmental conditions. Which among the following statements is NOT TRUE regarding insect resistance mechanisms?

1. Non- preference - Feeding plants adversely affects the development or reproduction
2. Antibiosis -Plants unattractive or unsuitable for colonization or oviposition
3. Tolerance-Ability of the host to produce larger yield than the other varieties at the same level of infestation
4. Avoidance- Escape from infestation

• A. All
• B. 2, 4
• C. 2 only
• D. 4 only

Answer 1

Answer:

B. 2, 4

• There is various mechanism mediating insecticide resistance development in insects.

• The major factors are behavioral resistance, fitness cost, reduced penetration, target resistance, and metabolic resistance.