Vitex as Insect Repellant

Posted by Robert Dailey Jul 6, 2008

In parts of the tropics, vitex (Vitex agnus-castus)leaves are used as a repellant for armyworm, diamondback moth, hairy caterpillar, rice leaf folder, rice stem borer, and semi-looper, among others.

Here’s how to make it:

Tools and Supplies

• ¼ kg (1/2 pound) of vitex leaves
• Two liters (4.2 pints) of water
• 1 ml (1/2 teaspoon) of liquid soap
• A pot to steep the mixture
• A strainer
• A spray bottle

Process

• Soak the leaves overnight in about a half liter of water. The next day, bring the mixture to a boil and boil for a half hour.
• Let it stand until room temperature and then strain the liquid.
• Back into the pot, add the remaining liter and a half of water, then the soap. Mix well.
• Place the mixture into a spray bottle and spray infested plants. Make sure you spray thoroughly, getting under leaves and on stems as well as over the top of leaves.

Safety Precautions

Although the mixture should not have any effect on humans, some people may develop a slight rash. Therefore, it is necessary to use proper safety precautions, just as you would for any substance.

• Clean all utensils well after brewing.
• Wear protective clothing, safety glasses and breathing mask before applying.
• Wear rubber gloves when brewing the mixture and when handling it.
• Keep out of reach of children and pets.
• Harvest fruit before spraying.
• Use a potash-based soap.
• Remember to wash hands after handling.