Which one of the following is used in preparing a natural mosquito repellent?
- Congress grass
- Elephant grass
- Lemongrass
- Nut grass
Explanation
Option (c) is correct
- Lemongrass is often used in preparing natural mosquito repellents. It contains citronella oil, which is known for its insect-repelling properties. The oil derived from lemongrass is commonly used in various mosquito repellent products, including sprays, lotions, and candles.
Option (a) is incorrect
- Parthenium, commonly known as “famine weed” or “Congress grass,” poses significant health risks primarily due to its potent allergens. Exposure to this invasive plant can lead to skin irritation, rashes, and a condition known as parthenium dermatitis. Inhaling its pollen can trigger allergic rhinitis, asthma, and other respiratory issues, while direct contact can cause eye irritation and symptoms like headaches, nausea, and fatigue.
Option (b) is incorrect
- Elephant grass (Napier grass or Uganda grass) is a tall, perennial, fast-growing grass native to the African grasslands
Option (d) is incorrect
- Nut grass, also known as nutsedge or coco-grass. It’s a widespread and troublesome weed found in many tropical and subtropical region.
