1. Bring the water to a boil. Remove from heat and add the grated lemon rind.
  2. Allow the mixture to steep overnight.
  3. Strain the mixture through cheesecloth, and pour into the pump spray bottle.
  4. Apply the mixture to plant leaves that are under attack by aphids or other soft-bodied insects. The mixture must come in contact with die insects' bodies to be effective.

Yield: About 1 pint of citrus oil extract

Adult aphid

Aphids will suck your plant's juices and can cause considerable damage if you don't control them, A safe and simple spray, made with lemon rind and water, is ail you need to stop aphids in their tracks.

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Lemon isn't the only source for a citrus spray. You can make a similar spray using orange or grapefruit rinds. Richard Merrill, Director of Horticulture at Cabrillo Community College in Santa Cruz, California, has tried several kinds of citrus sprays on aphids. "Citrus fruits with pungent rinds work best, since they probably include more limonene and linalool, which are the active ingredients," he says. For example, a navel orange with a mild, sweet rind would probably not carry the punch of a spray made from the rind of a sour orange, grapefruit, or lemon. ^

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