How to Use Emulsified Vegetable Oil for Plants?

To use emulsified vegetable oil, often called horticultural oil, for plants, you should dilute it with water before application.

Here’s a detailed guide on how to do it effectively:

Dilution and Preparation

Concentrate Mixture: The standard recipe involves mixing 2 tablespoons of the emulsified vegetable oil concentrate with 1 liter of water. This creates the appropriate dilution for plant use.
Mixing: Ensure that you mix the concentrate and water thoroughly to create a homogenous solution before application.

Coverage is Key: Horticultural oil works by smothering insect pests. Therefore, you must achieve full coverage of the plant, making sure that the oil coats the insects effectively.
Timing: Apply the oil in the early morning or late evening to avoid leaf burn in direct sunlight. Also, avoid application during high temperatures.
Frequency: Reapplication may be necessary depending on the pest infestation severity, usually every 7-10 days, or as directed by product instructions.

Here are additional tips to ensure success:

Test First: Always test a small area of the plant before a full application, to make sure it doesn't have any adverse effects.
Spray Technique: Use a fine mist sprayer to ensure even coverage, and focus on both the top and underside of leaves.
Target Insects: This type of oil is effective on soft-bodied insects, such as aphids, mealybugs, and spider mites.

Step	Action
1. Dilute	Mix 2 tablespoons of emulsified vegetable oil concentrate with 1 liter of water.
2. Mix	Thoroughly mix the solution until it is homogenous.
3. Apply	Spray the plant, ensuring full coverage, especially on the affected areas and pests.
4. Timing	Apply in the early morning or late evening, avoiding direct sunlight and high temperatures.
5. Reapply	Reapply every 7-10 days or as needed, following product instructions and pest severity.

By following these guidelines, you can effectively use emulsified vegetable oil to control pests on your plants.