Neem tree is native of India. Its leaves contain chemicals such as Nimbin which have antifungal, antibacterial properties. Hence, dried neem leaves are used for storing food grains at home. Neem leaves are kept in stored grain, protecting from pests and microorganisms.

Neem leaves are used to protect stored grains from insects and microorganisms. Neem, also known as Azadirachta indica, is a tree native to the Indian subcontinent. Its leaves have been traditionally used in various applications due to their medicinal and insecticidal properties.

The use of neem leaves for grain protection can be attributed to the following factors:

1. Insecticidal properties:
- Neem leaves contain various bioactive compounds such as azadirachtin, nimbin, and salannin, which exhibit strong insecticidal properties.
- These compounds disrupt the feeding, growth, and reproduction of insects, making them effective in controlling pest infestation in stored grains.
- Neem leaves act as a natural insecticide, preventing the growth and spread of insects that can damage stored grains.

2. Antimicrobial properties:
- Neem leaves possess antimicrobial properties that inhibit the growth of microorganisms such as bacteria and fungi.
- The bioactive compounds present in neem leaves, such as nimbin and gedunin, have been found to exhibit antimicrobial activity.
- By inhibiting the growth of microorganisms, neem leaves help in preventing the spoilage of stored grains and maintaining their quality.

3. Safe and eco-friendly:
- Neem leaves are a natural and safe option for grain protection as they do not pose any health hazards to humans or animals.
- Unlike synthetic chemical pesticides, neem leaves are biodegradable and do not contribute to environmental pollution.
- The use of neem leaves for grain protection aligns with sustainable and eco-friendly agricultural practices.

In conclusion, neem leaves are used to protect stored grains from insects and microorganisms due to their insecticidal and antimicrobial properties. The bioactive compounds present in neem leaves act as natural pesticides, effectively controlling pest infestation and preventing spoilage of stored grains. Additionally, the use of neem leaves is safe and environmentally friendly, making it a preferred choice for grain protection.