The correct option is B Insecticide obtained from neem
Azadirachtin is generally known as 'neem extract' is most potent tetranotriterpenoid isolated from neem seed. It is yellowish powder that contains key active component of neem and possesses powerful insecticidal properties.
1. It is most potent insect repellent, antifeedant and an insect growth regulator.
2. It affects more than 300 species of insects.
3. Insects can't develop resistance for azadirachtin.
4. It is completely safe for non targeted insects, like honey bees and butterflies and also safe for mammals like human beings.
5. Pesticides containing azadirachtin are versatile; bio-degradable; leaves no residue hence safe for environment.
6. It provides a broad- spectrum pest control for fruits, vegetables and plantation crops, greenhouses, turf, outdoor ornamental plants and agricultural crops, such as sugarcane, paddy, cotton and tea.