We plant lovers don’t want to witness plants being harmed by pests. The problem enters our homes, which is gross, therefore we especially don’t want to see pests in our houseplants! The little winged creatures known as fungus gnats are about the size of fruit flies and resemble tiny mosquitoes (don’t worry, they don’t sting!). The good news is that these pests are considerably less dangerous than many others, and even better, they are rather simple to get rid of.
What are Fungus Gnats?
It’s probably a fungus gnat if you encounter a little winged bug that resembles a fruit fly fluttering about the soil of your houseplant. They are attracted to damp, nutrient-rich soils and have long legs for a fly their size. Your plants’ leaves have very little appeal to fungus gnats; instead, they prefer the damp earth beneath the plant canopy. They devour the hair roots of your plants and lay their eggs in the top layer of damp soil. Nothing is more impolite than an unwelcome guest laying eggs in your favorite plant and consuming its roots, even though their damage may be modest. These bugs eventually cause wilting, poor growth, and discolored leaves if left untreated.
Signs of Fungus Gnats
If you have a gnat infestation, you already know how noticeable they are. Due to their poor flight abilities, these flies usually stay rather near to the plant. They’ll be moving in zigzag patterns as you watch. Their tiny, transparent larvae could be visible if the dirt is carefully stirred. Yellow sticky cards are an excellent control method as well as a terrific way to keep track of their activity. See more below on that.
The Number One Way to Get Rid of Gnats
Infestations of fungus gnats typically occur when the soil is very damp. Problems might arise when plant parents provide the same care to their plants throughout the year. Consider this: Compared to the winter, our homes are typically brighter and more humid in the summer. In the winter, most plants become more dormant as a result of the changing seasons. You can keep fungus gnats from setting up camp in your plant pots by reducing the amount of water you use.
Gnats deposit their eggs in the top layer of the soil, and the soil must remain moist for the eggs to survive. It can harm the eggs and disrupt the gnats’ life cycle if you let it dry out. Your indoor plants should be soaked from below if your pot allows it. While the soil near the root ball absorbs water, the soil surface remains dry. Place the pot in a dish of water and let the water to seep up through the drainage holes to do this.
What If That Doesn’t Work?
You can intensify your treatment plan if you’ve modified your watering schedule and the gnats are still present or if you want to get rid of them quickly. Here are a few simple methods for getting rid of gnats in your indoor plants:
Apply sticky cards. In our greenhouse, you may have noticed the yellow cards on sticks and wondered what they were for. The cards are positioned directly above the soil’s surface since gnats prefer the color yellow. Checking what you’ve captured allows you to keep track of what you have while also getting rid of all the gnats that land on your credit card. Replace your sticky card every 4-6 weeks (or sooner if it’s bugged), just to be safe.
Larvae are quickly, inexpensively, and efficiently killed upon contact with hydrogen peroxide solution. Spray your soil with a solution made of four parts water to one part hydrogen peroxide.
Although unpleasant, fungus gnats can’t stand a chance against a plant parent with a game plan. To avoid these disgusting bugs, reduce your watering frequency throughout the winter and develop the habit of bottom-watering. You won’t regret it!
Change Your Watering Routine
Fruit flies prefer moist environments to grow. All they require to begin reproducing is a small amount of moisture.
So think about altering your watering routine. Reduce watering if your indoor plants require less than what you are now providing. It will aid in drier conditions, which will aid in the management of fruit flies in your indoor plants.
Get a moisture sensor if you have trouble estimating the amount of moisture in the soil. You can determine how damp the soil is using this instrument.
Turn the Soil
Disturbing the soil is one approach to stop fruit flies from reproducing. The moist, dark soil below the soil’s surface is a haven for fruit fly larvae. You can expose the larvae to the dry, open air above by regularly rotating the soil.
If the issue is extremely pervasive, you might occasionally need to re-pot the plant. Put the infested dirt in a plastic bag after removing it. The larvae will choke and die in the airtight conditions. Before using the pot again, properly sanitize it.
Attack the Root Problem
The root of the issue, not the real roots of your plants, which would be awful. Rotten fruits and leaves draw the attention of fruit flies.
Additionally, they enjoy eating any fungus that grows. Be thorough while removing any fungus, damaged fruit, or leaves. To get rid of the fungus, rub your plants with alcohol or spray them with dishwashing detergent.
Control the Humidity
Fruit flies love to breed in wet environments. Fungus, their preferred food source, flourishes when the air is excessively humid. Make sure not to overwater your plants.
You can get rid of fruit flies from your indoor plants with these four procedures. Consider installing traps to capture the fruit flies in addition to this.
Why do my houseplant has tiny flies on it?
Because of this, you might have noticed much smaller flying insects buzzing around your houseplants and mistaken them for common or garden fruit flies, but the more likely species is fungus gnats.
Soil gnats is another name for these little flying insects. In the potting soil of indoor plants, they thrive and reproduce.
Therefore, if you see little black gnats flying around or crawling through the dirt around your houseplants, they are most likely fungus gnats.
Fungus Gnats Are Part Of A Family Of Insects That Include:
- Bolitophilidae
- Ditomyiidae
- Keroplatidae
- Diptera
- Diadocidiidae
They typically eat mushrooms and dead plant detritus and are naturally found in moist forest environments.
Small Pests
Fruit flies are much larger than fungus gnats, which are considerably smaller. In actuality, they only reach a length of around a quarter inch.
Therefore, despite your incorrect belief that they are too small to do any real harm, their larvae may and will harm your indoor plants.
Fungus Gnats Like Warm Moist Soil
Fungus gnats are frequently drawn to indoor plants because they lay their eggs in damp soil.
When the eggs hatch, the young birds will eat roots, algae, fungi, and other organic matter like potting soil.
Fungus gnats are generally innocuous as adults, but the larvae can destroy your houseplants.
The larvae, as we have seen, are the ones that cause the greatest harm because they may feed on plant roots that are buried in the soil, which can cause damage to the roots and stunted growth.
A fungus gnat is most likely what you are witnessing if you notice tiny black gnats flying or crawling about in the dirt surrounding your houseplants.
How are fruit flies removed from plants?
1 cup of warm water and 1/2 a teaspoon of dishwashing liquid should be combined. Spray the liquid on the fruit flies on the plants after putting it in a spray bottle. To remove the flies from the plants, use a gentle cloth.
What causes fruit flies inside?
by Extension Entomologist Michael F. Potter from the University of Kentucky College of Agriculture
Fruit flies are most likely to blame if you’ve noticed little flies or gnats in your kitchen. Because they are drawn to ripening or fermenting fruits and vegetables, fruit flies can be a nuisance any time of the year, but they are more prevalent in the late summer and early fall.
Bringing in perishable foods from the garden, such as tomatoes, melons, squash, grapes, etc., is frequently the catalyst for an infestation to start indoors. Rotten bananas, potatoes, onions, and other grocery store items that wasn’t refrigerated are also attractive to fruit flies. This fact sheet will outline the causes of infestations and how to avoid them in your house or place of business.
Biology and Behavior
Fruit flies are prevalent whenever food is allowed to rot and ferment, including homes, restaurants, supermarkets, and other places. Adults typically have crimson eyes and are around 1/8 inch long. Tan makes up the front of the body while black makes up the back. The surface of foods that are fermenting or other moist organic materials is where fruit flies lay their eggs. After emerging, the tiny larvae stay close to the surface of the fermenting mass to continue feeding. This surface-feeding trait of the larvae is important because it allows damaged or overripe fruit and vegetable sections to be removed without the rest being thrown out out of concern about harboring any developing larvae. Fruit flies have a huge capacity for reproduction; given the chance, they will lay roughly 500 eggs. From egg to adult, the life cycle can be finished in roughly a week.
Ripe fruits and vegetables in the kitchen are particularly appealing to fruit flies. In addition, they will procreate in drains, garbage disposals, empty bottles and cans, trash cans, mops, and cleaning cloths. Development only requires a wet coating of fermenting material. Overripe fruits or vegetables that have been infected in the past and brought into the house can be the source of infestations. Through improperly screened windows and doors, the adults can also fly inside from the outside.
Fruit flies are mostly bothersome pests. However, they also run the risk of introducing germs and other disease-causing organisms into food.
Prevention
Eliminating sources of attraction is the greatest method to keep fruit flies from becoming a problem. Produce that has matured should be consumed immediately, thrown away, or refrigerated. If eggs or larvae are found in the cracked or damaged section of fruits or vegetables, the portion should be taken away and thrown away. Numerous fruit flies can be produced by a single abandoned rotting potato, onion, or spilled fruit juice under a refrigerator. The same is true for a recycling bin that is kept in the basement but is never cleaned or emptied.
To prevent fruit flies from laying their eggs under the lid and hatching tiny larvae within the container, people who can their own fruits and vegetables, manufacture wine, cider, or beer, or can their own fruits and vegetables should make sure the containers are tightly sealed. To help stop adult fruit flies from entering from outside, windows and doors should have snug-fitting (16 mesh) screens.
Eradication
Once fruit flies have taken over a building, all potential breeding grounds must be found and destroyed. No matter how frequently insecticides are used to control the adults, the issue won’t go away unless the breeding areas are eliminated or cleaned up. It can be very difficult to identify the source(s) of attraction and breeding, and it frequently calls for some effort and perseverance. Inaccessible potential breeding locations, such as drains and garbage disposals, can be checked by putting a clear plastic food storage bag over the opening for the duration of the night. The adults will emerge and be trapped in the bag if flies are breeding in these places.
A pyrethrum-based aerosol insecticide can be used to kill any adult flies that are still present after the attraction and breeding sources have been taken care of.
A paper funnel made from a sheet of notebook paper coiled into a jar and then baited with a few ounces of cider vinegar is a superior strategy, though. Put the jar trap(s) where you notice fruit flies. Any remaining adult flies will quickly be captured by this easy-to-use trap, which may then be killed or released outside.
CAUTION! This publication’s pesticide recommendations are only authorized for use in Kentucky, USA. Some goods’ use might not be permitted in your state or nation. Before applying any pesticide indicated in this publication, kindly check with your local county agent or regulatory official.
Of course, FOR SAFE USE OF ANY PESTICIDE, ALWAYS READ AND FOLLOW THE LABEL INSTRUCTIONS!
How can I eradicate little black flies from my houseplants?
A house plant purchase can be really thrilling! Whether you are adding to your indoor plant collection or buying your first indoor plant. It can change any space with its lovely foliage, shape, and brilliant colors. Unfortunately, little pests like fungus gnats and fruit flies can ruin our love and appreciation for our lovely houseplants. We are frequently frustrated by this, as is your houseplant.
Small flies called fungus gnats can be found buzzing around your indoor plant’s soil. Because of their sad biology, these small insects are drawn to indoor plants because they eat on outdoor plants. The good news is that you can get rid of them. The type of pests you have can vary depending on the houseplants you grow.
You must first determine what kind of pests are bothering you. Small black insects known as fungus gnats, which are frequently mistaken for fruit flies, are the most prevalent pests. The distinction is that fruit flies live around fruit, especially rotting fruit, but fungus gnats thrive in plants like succulents that have damp soil. These can harm your plant since they lay their eggs in the soil.
1. Add less water or dry soil Due to the fact that the majority of fungus gnats like to live in moist soil, laying a thick layer of dry soil on top of the bedding for indoor plants will allow the soil underneath to gradually dry out and keep the fungus gnats away. It should be mentioned that even though you may scare the flies away, depriving your houseplant of water for an extended length of time can harm it. For instance, cacti can tolerate dry soil, while other indoor plant species might not.
Another choice is to water less frequently. Because fungus gnats require a moist environment to exist, watering the plant less frequently and letting the soil dry out between waterings will make the fungus gnats uncomfortable and drive them away.
3. Think about Sticky Traps Fly sticky traps can be useful because they capture adult fungus gnats, stop them from laying eggs, and disrupt the life cycle. Place the sticky trap at soil level on or close to the damaged houseplant. Fly sticky tape is available online for purchase or DIY creation. Using a card, a yellow highlighter, a wooden stick, and Vaseline, draw attention to the stick, which will draw flies, then capture the fungus gnats with the Vaseline to end their life cycle.
4. Pesticide Soap or Spray Using insecticidal soap or spray, often known as horticulture soap, is a frequent option if the aforementioned approaches fail to successfully get rid of pests. You have the option of buying the soap online or at your neighborhood garden center, or you may create it yourself. When the sun has set and you have your horticultural soap, all you need to do is apply it to the leaves of your houseplant and the area surrounding it. This will prevent sunburn. This ought to discourage those bugs.
6. Pot up your indoor plants The best course of action is to sanitize your plant by removing contaminated dirt that has numerous eggs imbedded in the soil and repotting your houseplant in new and fresh soil without disturbing the roots if all else fails or the sticky traps are catching a lot of insects. For more information, see our tutorial on repotting your houseplant.
Congratulations, you’ve done all necessary to get rid of houseplant flies! The longevity of our cherished houseplants can be extended by removing these pests.