Systemic insecticides and insect growth regulators (IGRs) are insecticidal compounds that are absorbed by the plant and spread throughout its tissues. Systemic pesticides are generally more effective and less harmful to humans and the environment, since they prevent pests from reproducing by inhibiting larval development in their immature stages. As a result, systemic treatments might be the types of insecticides you need for whiteflies on your vegetables.  Whiteflies can be a difficult pest to control. They are very common in greenhouses and nurseries. There are many chemical controls sold for whiteflies, but you need to make sure you are familiar with where you can safely use chemical insecticides. If you have children and pets, you will want to carefully read the labels on the products before treating your plants. Serro or Adelphos, both systemics controls recommended by the OMRI (Organic Materials Review Institute), are not approved for home use. Whiteflies are common insects that love to ruin the look of your plants. They tend to feed on the leaves of your plant species, sucking juices out of them. Some only feed on leaves and do not cause any damage. However, once you get a group of whiteflies in your garden, they can start damaging the interior of a plant. They lay their eggs inside the buds and stems of a plant and they could hatch within a month or so.

Systemic Insecticide For Whiteflies

Use an insecticidal soap spray.

Insecticidal soaps are made from plants and can kill whiteflies. These natural insecticides work by disrupting the waxy layer on the insect’s exoskeleton, causing them to dehydrate and die. Insecticidal soaps do not harm humans or animals, but may cause some damage to plants if sprayed too heavily.

To make your own insecticidal soap, mix together:

• 1/4 cup of liquid dishwashing soap (10% concentration)
• 1 gallon of water
• 2 tablespoons of vegetable oil (optional)

Mix in a spray bottle and apply evenly over plant leaves by spraying or swishing gently with a soft cloth or sponge. Spray every two to three days until infestation is gone. Make sure to cover all parts of the plant you’re treating!

Apply neem oil.

To treat whiteflies with neem oil, first remove the plant from its pot and set it on a table or other surface where you can easily spray the underside of its leaves. Using a pump sprayer filled with about two ounces of warm water, apply 10 drops of neem oil per gallon to infested plants. The temperature should be between 78 and 80 degrees Fahrenheit when spraying neem oil onto plants so as not to damage them by getting cold afterward.

When using neem oil as a systemic insecticide against whiteflies, follow these guidelines:

• Use just enough water in your sprayer so that you don’t have too much leftover after applying it all over each leaf surface area. Don’t use too much liquid because that can cause an excess amount of nutrients to be delivered into soil or potting mixes at once—which could lead larvae who have been feeding off those materials until then some time ago now being exposed directly again (and thus dying). This also prevents any buildup occurring inside pipes leading back into storage tanks; if this happens then clogs may form which would prevent future applications being made properly!

Use imidacloprid spray.

Imidacloprid is a systemic insecticide. It can be sprayed on the leaves of your plant or applied to the soil, and it will kill whiteflies that eat leaves. Imidacloprid is recommended for outdoor use only; it’s not safe to treat indoor plants with this kind of pesticide.

To mix imidacloprid with water:

• Fill a bucket halfway with warm water from your garden hose or faucet (not hot water).
• Add 10 ml of imidacloprid insecticide per liter (about 1 US quart) of water in the bucket, stirring well until all crystals have dissolved completely. Do not mix more than you will use in one day; keep unused amounts in a closed container away from children and pets until you dispose of them properly.[4]

Systemic insecticides are best for whitefly infestations on houseplants.

Systemic insecticides are absorbed by the plant and translocated to the leaves, flowers, stems and roots. This means they can be used to kill insects inside the plant without having to spray directly onto it. Whiteflies are often hidden in crevices on your plants or deep within the leaf tissue so they can’t be reached with regular treatments.

Systemic insecticides work well because they are effective against whiteflies at all life stages of development. They also have a residual effect that lasts longer than other types of insecticides which means you don’t have to reapply as often! Systemic pesticides come with an added bonus: since they target insects by getting inside them (through their bodies), there is no risk for pets or kids who may accidentally get too close while gardening because these products won’t harm humans either