Toxicant refers to a________________?

Related Mcqs:

1. A dose of a toxicant that kills 50% of the exposed organism is called_________________?

   A. LC₅₀
   B. LD₅₀
   C. None of the Above
   D. LD₇₅

2. The concentration of a toxicant that kills 50% of the exposed organism is called_________________?

   A. LC₅₀
   B. LD₅₀
   C. None of the Above
   D. LD₇₅

3. Toxic refers to a________________?

   A. Poison
   B. Poisonous material
   C. None of the Above
   D. Both of them

4. Insect which are found every where are called___________________?

   A. Cosmopolitan insects
   B. Household insects
   C. Store grain
   D. None of the above

5. Fast acting pheromones and called__________________?

   A. Releasers
   B. Primers
   C. Semiochemicals
   D. Allelochemicals

6. Main kind of insect pests are___________________?

   A. Major pest and minor pest
   B. Key pest
   C. Migrant pest and potential pest
   D. All the above

7. Against Lepidopterous larvae we apply_________________?

   A. Lefenuron, Chlorfluazuron, Flufenoxum
   B. Formothion
   C. Methamidohpos
   D. All the above

8. The slow acting pheromones are_________________?

   A. Primers
   B. Releasers
   C. Semio chemicals
   D. Allelo chemicals

9. The pest which causes no significant damage but due to unjudious use of chemical they cause significant loss is called ?

   A. Secondary pest
   B. Key pest
   C. Occasional pest
   D. Migrant pest

10. A chemical which causes plant does it called __________________?

    A. Bait
    B. Defoliant
    C. Chronic poisoning
    D. Acute poisoning