If anyone wants to love to grow Hibiscus, then he must know about its care and the whiteflies that cause damage to this ornamental plant. This article gives an overview of the whiteflies on hibiscus plant and tips for removing them and caring for the plants!
Also, Read; 11 popular types of jade plant
Numerous exotic-looking blooming plants belong to the Malvaceae family, the largest of which is the genus hibiscus. Large, eye-catching flowers are the main draw of these plants, which are native to temperate and tropical regions. They come in many shapes and sizes, with dark green leaves and long-lasting trumpet-shaped flowers in pastel to bright white, pink, yellow, peach, lavender, and red hues. Sometimes one or more colors appear on each petal.
Common Hibiscus includes the Flowers of an Hour, Chinese Rose, Rocks Bahar, Abelmosk, rosemallows, and Hawaiian Hibiscus. Sun is ideal for them, but not all can withstand winter cold. In temperate zones, these plants spend the winter in containers on patios before being transplanted outdoors during the summer. It can reach 15 feet when water, sunlight, and good drainage are given. The vivid blossoms can reach a diameter of 6 inches. When planted alone in pots or as a hedge, these plants provide a garden with a unique and exotic look. Hummingbirds, butterflies, and other insects are all drawn to the bright colors. The most common pests that attack them are whiteflies, aphids, and mealybugs.
What are whiteflies?
Whiteflies, despite their name, are not true flies despite their four white wings. Instead, the female lays eggs underneath the leaf, where the adult insects stay. According to the University of Australia’s Integrated Pest Management Program, whiteflies cause damage to crops and decorative plants like Hibiscus by using specialized mouth parts to take sap from the plants. In addition, the honeydew that whiteflies secrete feeds a fungus called black sooty mold, which is ugly and can spread disease. As a result, the “giant” whitefly is one of the most dreaded insect pests of hibiscus plants (Aeleyrodicus dugesii).
Common Whitefly Characteristics
- Tiny flying insects are commonly seen on the leaf’s underside. Whiteflies have the chemical formula Trialeurodes vaporariorum and are only about 1/16 of an inch in length.
- White or very pale, these sucking pests get by on a diet of sap from the leaves, which they then rot, hence the name.
- Shaking the plant in question will reveal any bugs lurking within them.
- When whiteflies are disturbed, they take flight in a cloud of bumblebees and return to their leafy perch shortly after that.
- Whiteflies are prevalent year-round in the south and along the coast, making them a common pest of outdoor hibiscus plants.
- The indoor plants in northern regions are vulnerable since these flies like to feed on the plants cultivated in containers.
- Hibiscus, potatoes, cucumbers, grapes, tomatoes, eggplants, okra, broccoli, citrus, and poinsettia are just a few of their favorite plants to eat.
- Whiteflies are tiny insects with powdered white wings and short antennae that grow to only 1/16 of an inch in length as they mature into adults.
- They are moth-like creatures that hover above the tips of stems and leaves.
- Adult female whiteflies will deposit groups of 200-400 embryos on the leaf’s undersides.
- A week later, the eggs had hatched.
Damage of Whiteflies on Hibiscus
The nymphs and adults of whiteflies feed on the sap of young hibiscus plants, causing them to stall in growth, prevent flowers from opening, and turn the leaves of the plants a sickly yellow color. They feed off the plant’s water and nutrients, leaving it weak and susceptible to illness. Whiteflies are the actual perpetrators in the spread of different viral diseases. Honeydew is a sweet, sticky, black residue that these tenacious garden parasites, like aphids, exude. In addition to covering the leaves in a black film, this mold prevents photosynthesis. An otherwise beautiful hibiscus becomes unattractive due to whiteflies. The leaves change color or begin to fall.
A hibiscus plant can be severely damaged or even killed by an infestation of whiteflies. When female giant whiteflies lay their eggs on the underside of leaves, they leave a waxy residue. It is found that in comparison to its yellow counterparts, red hibiscus types are more susceptible to severe whitefly infestations. Whiteflies aren’t likely to be the cause of a hibiscus demise, but they can cause considerable dieback.
Once you have investigated that the Hibiscus has whiteflies, then you must control the whiteflies by following these steps.
- Identify the squashed whitefly eggs and resting nymphs by looking at the undersides of the plant’s leaves.
- Remove any diseased leaves with a pair of clippers.
- Please place them in a bag and throw them away.
- First and foremost, you should use a powerful water blast from a spray hose to eliminate whiteflies.
- Keep doing it once a week to keep the bugs at bay.
- Add yellow sticky traps 3 inches by 10 inches in size to catch whiteflies. Each web will use 1/4 inch of plywood.
- After spray painting the pieces yellow, use wax and liquid dish detergent.
- Disturb the plant’s foliage and set traps so that they face the affected plant.
- When the insects fly into the trap, they will get stuck.
Neem oil for whiteflies
Spray the plant with washing-up liquid, pesticidal soap (recipe), neem, or agronomic oil after the population has dispersed; be careful to coat the underside of the leaves thoroughly. Learn More About Neem Oil and Its Use in Reducing Whiteflies. As a result, the nymphs will die of asphyxiation and fail to mature. In addition, most whiteflies have developed resistance to chemical insecticides. Thus, using them may not be helpful.
Whiteflies can be kept in check by creating a welcoming environment for predatory insects and beneficial insects like hummingbirds and ladybugs, dragonflies, and damselflies.
How do I know if I have whiteflies?
Whiteflies can be detected by shaking the Hibiscus to see if any leaves fall off. If you shake the main stem, you’ll release a cloud of white, winged insects that feed on the undersides of the leaves. They will take off for a while, only to return to the same bush or one close. They look and fly like tiny houseflies but have a brilliant white color.
Honeydew, an excretion made by the insects while they eat and breed on the host plant, is delicious and sticky. Mold spores from the black sooty variety land on the honeydew and develop, eventually coating the leaves in black. This mold is harmless to plants, but it is unattractive and prevents the leaf it’s on from getting any sunlight. It can be removed with a strong spray of water from a hose or BugBlaster, and it may take some washing to get off completely. Swarms of White Flies Destroy Hibiscus. Whiteflies have wreaked havoc on this Hibiscus, leaving its leaves coated in wax and honeydew.
If the Giant Whitefly is not captured early, the symptoms will become unavoidable like they are for the other whitefly species. Adult whiteflies leave behind a spiral of white wax as they crawl across the leaves of your Hibiscus. Extremely high gigantic whitefly populations cause the larvae and their waxy secretions to cover both the upper and lower surfaces of the affected leaves. Wax deposits are a common place for birds to lay their eggs. The nymphs, after they hatch, cause the damaged leaves to develop a beard-like growth of wax filaments up to 2 cm in length—all this wax united nations’ industrial development in a sloppy, unclean exterior and a compromised plant.
What are resistant whiteflies?
The silver leaf whitefly, in particular, is immune to several typical insecticides. That’s why it’s essential to forestall issues before they even arise. Whitefly populations that thrive on certain plants should be avoided or removed.
Which homemade material is used to get rid of whiteflies?
The easy-to-make concoction that mixes dish soap with water and a water gallon with a generous amount of soap added to it ought to do the trick.to combat and discourage whiteflies.
Why do white flies multiply in numbers?
Whiteflies share your plants’ affinity for nitrogen-rich fertilizers. Therefore, frequent infestations are linked to excessive nitrogen fertilizer. Over-fertilizing your garden with nitrogen can increase the frequency of whitefly infestations, despite nitrogen improving plant life.
There is a close relationship between whiteflies and aphids, soft-bodied bug that feeds on plant sap and secret honeydew. Aphids come in thousands of species. However, the melon aphid is the most common one to attack Hibiscus. Therefore, the term “cotton aphid” is commonly used to refer to this species. The melon aphid can transmit more than 50 different types of viruses. This article has provided a complete overview of how to eliminate whiteflies from the hibiscus plants.