PlantVillage is an open access public resource at Penn State that aims to help smallholder farmers grow more food. Please consider donating LINK and helping us, help smallholder farmers. Your gift will go 100% to PlantVillage and is tax free in the USA.
Neem (Azadirachta indica) is a tree that belongs to the Meliaceae (Mahogany) family. Originated from southern and southeastern Asia neem is presently worldwide distributed. Neem is a fast-growing tree and can reach 25 meters in height. The leaves can reach up to 40 cm long with a flexible midrib carrying 20-30 leaflets each measuring 3-8cm and attached to the midrib by a short stalk. The flowers are grouped giving green olive-shaped fruits that turn yellow when ripe.
Neem extracts are used in agriculture for pests and disease management and to supply nutrients to plants. In addition, neem is safe for farmers can be used during the entire crop cycle, environmentally safe, and compatible with the different IPM strategies.
Neem compounds act as systemic and as contact poisons for pests:
Note You can use the liquid from the leaves for up to one week after preparation; but it is best to store it in a cool, dark place.
Learn more about your crops in our library
Learn about ways to keep your crops healthy