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13 Natural Ways to Get Rid of Whiteflies on Plants

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13 Natural Ways to Get Rid of Whiteflies on Plants

If your plant leaves are covered with a white, waxy substance and the surfaces feel like sticky honeydew, that’s a sign you may have whiteflies on your plants.

These insects feed on plant sap, causing the leaves to turn yellow, dry up, and eventually fall off. Therefore, it is vital that you get rid of them quickly before the damage becomes severe.

White fly is a general term for tiny flying white bugs that infest a wide range of plants and crops and are a particular menace to farmers.

Hundreds of species have been identified [1], including a type that mainly feeds on tomatoes and others that you will find largely in greenhouses. There are also cabbage white flies that damage brassica crops.

Here’s how to get rid of whiteflies naturally.

1. Neem Oil Spray

Neem oil is a long-standing remedy against many garden pests. This natural treatment comes from the seed of the Neem tree. It is bitter and has a unique smell that deters a range of unwanted insects.

Neem oil will repel the adults, hindering them from laying their eggs. Moreover, it will smother the eggs and larvae that are already present.

Spray neem oil under and on leaves and around the plants. The recipe is four teaspoons of the oil with one teaspoon of organic liquid soap to a gallon of water. Shake ingredients well and add to a spray bottle.

Neem is also an effective fungicide dealing with the dark sooty mold caused by the honeydew residue.

2. Vacuum Them

The simplest and cheapest way to start dealing with these destructive insects is to vacuum them away.

Using a small hand-held vacuum cleaner, you can suck them up from under leaves and on plant stems. Release well away from the home and garden.

3. Soap Spray

This is another quick and inexpensive white fly control method.

Mix 4 tablespoons of organic liquid soap in one gallon of water and mist the plants thoroughly.

Spray in the evening and repeat every few days until the insect infestation is down or gone entirely.

4. Sticky Traps

These are unpleasant but effective deterrents. Yellow sticky traps appear to be the most attractive color for capturing white flies.

They will become immobilized, unable to feed or reproduce, and will die.

Hang the traps on or near plants or in the greenhouse. You can also buy a sticky gel and use it around the base of plants and shrubs to catch the pests.

5. Beneficial Insects

This method is at the heart of organic pest control using nature’s own way of reducing pests while feeding and encouraging helpful insects and pollinators.

Natural insect predators include ladybugs, dragonflies, garden spiders, and green lacewing larvae.

Additionally, parasitic wasps are particularly useful in biological control. They lay their eggs inside host insects and hatch out to feed on and destroy the hosts.

Moreover, most of these beneficial insects can be purchased from specialist breeders to help populate the organic garden. Farmers employing this method report notable benefits in pest and cost reduction.

6. Handpicking

A simple but laborious method of control is using your hands to pick them off.

For the squeamish, soft cloth or pieces of kitchen towel can be used on the leaves to collect up and destroy the small white bugs. Also, cut off any infected parts of the plants

7. Worm Castings

Earthworms are beneficial to plants by helping to mix organic matter into the soil. Their excrement (worm casting) helps raise the chitinase enzyme level in plants [2], repelling whiteflies.

You can make your own or buy the product from various farm and gardening stores. Besides, worm castings are often used as organic fertilizer.

8. Companion Plants

Planting flowering plants like French marigolds alongside tomato plants is a good way of controlling whitefly insects. The fragrance is intolerable to these pests, deterring and sending them away from the area.

Nasturtiums are another bright and helpful plant to keep away the pest. Moreover, they give color and attractiveness to the garden and encourage pollinators.

9. Birds

Birds, particularly hummingbirds, are happy to clear your garden of whitefly.

These harmful insects are the natural diet of birds. Therefore, making the garden attractive to the predators by providing some shelter and additional food is a good idea.

10. Garlic Spray

Garlic is yet another effective home remedy against tiny white bugs on tomato plants and other crops.

Crush about four garlic cloves into a tablespoon of mineral oil and leave it to stand for a while. Next, strain and add about a pint of water to the solution. Finally, hand spray outdoor plants or those in the greenhouse.

11. Reflective Mulch

This type of mulch is often used by gardeners to reflect light onto plants in shady areas.

The reflective material is usually made from aluminum or silver polyethylene and confuses white flies, sending them elsewhere.

12. Molt-X

This is a commercial concentrate of azadirachtin, one of the most effective components derived from Neem seeds.

This natural insecticide differs from Neem oil in that it lacks certain fungicidal effects; however, it is an efficient antifeedant of many pests including white fly.

Molt-X disrupts molting and affects all other stages of the insect’s life. Feeding also stops. Consequently, the flies fail to develop and slowly die off.

This organic pesticide should be diluted with water according to the instructions and sprayed onto and around plants.

13. JMS Stylet Oil

Stylet is an OMRI-listed mineral oil that is safe to use on fruit trees and vegetable crops as well as ornamentals.

This organic oil is used to treat mildew as well as being a natural insecticide and anti-virus product. It is non-toxic to beneficial insects, pets, and wildlife if used according to the instructions.

Diluted and sprayed all year round, it is effective in disrupting the life cycle of whitefly and many other pests.

Takeaway

These tiny white flying insects gather under leaves and feed on the sap of plants, weakening and destroying them. Females also shed hundreds of eggs for the next generation to add to the damage.

Using a combination of natural pest control methods such as those described here, appear to be the best solution to get rid of this complex problem.

Andre Campbell

Organic farmer and co-founder of Dre Campbell Farm. He appreciates everything in nature -- sunshine, plants, animals, and human life.

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