Organic Gardening with Neem Oil

Organic gardeners are using a gentle but effective product to deal with many pest and disease problems: Neem Oil. The neem seed oil has antibacterial properties.

Gardeners can also use neem oil to control or prevent many common plant pests and diseases such as:

  • Leafhoppers
  • Mites
  • Squash bugs
  • Thrips
  • Cabbage worms
  • Japenese beetle
  • Sawflies
  • Webworms
  • Weevils
  • Whiteflies

Neem will also control the larvae of a number of lawn pests usually lumped together as "white grubs." Sprays will also help to control disfiguring foliar diseases like mildews and black spots.


It is biodegradable and, in small doses, is nontoxic to mammals, so it's a good choice for using around pets, people and plants.


The active ingredient in neem, azadirachtin which act somewhat like steroids. Naked Neem Organic Neem Oil contains 1500ppm, which is among the highest available.


When insects eat neem-coated foliage, the limonoids, which are a component of azadirachtin, disrupt normal hormone production and processing. It causes a loss of appetite in some insects and interferes with normal reproduction, maturation, and molting patterns.

Applied as a spray, neem oil will smother certain pests on contact and will also prevent eggs from hatching. It is safe to use on both ornamental and edible crops and can be sprayed on herbs and vegetables up to the day of harvest. Applying neem oil to a drought-stressed plant can burn the foliage, so water plants thoroughly before using it.


Combine all ingredients, shake well before each use. Spray onto infected plants that have been watered. Can also be used before plants become infected.

For educational purposes only
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