Question

The glycosidic insecticide extracted from red onion is _______

• A. Acetamiprid
• B. Sciliroside
• C. Mirexin
• D. Bifenthrin

Hint:

Scilliroside is highly toxic to rodents because they lack the ability to vomit, making red squill extracts a useful, selective natural rodenticide.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Many plants produce natural secondary metabolites, such as glycosides or alkaloids, to protect themselves against insects and herbivores.

Step 2: Detailed Explanation:
Scilliroside is a toxic cardiac glycoside extracted from the red squill (Drimia maritima, formerly Urginea maritima), a bulbous plant closely related to onions in the Liliaceae family.
In classical toxicology and agricultural chemistry, it is referred to as a plant-derived toxic glycoside with selective insecticidal and rodenticidal properties.
Acetamiprid and bifenthrin are synthetic chemical insecticides, and mirexin is a chlorinated synthetic compound.

Step 3: Final Answer:
Therefore, scilliroside is the plant-derived glycosidic pesticide associated with this botanical group.