What eats orchids is a worrying question that gardeners have often been left wondering what is eating their orchids after finding their plants completely or partially devoured by unknown organisms. This can be incredibly frustrating for green thumbs that don’t know the symptoms left by different pests that feed on orchids.What Eats Orchids Ten Common Orchid Pests and Bugs

Apart from the common orchid pests and diseases that attack these plants, there are several animals and insects that feed on their leaves, flowers, roots, and stems. This article will provide ten of them you are likely to encounter and how to prevent them from causing additional damage to your orchids.

10 Common Insects and Animals That Eat Orchids

1. Slugs and SnailsSlugs and Snails Eaters of Orchid

Distinguish Characteristics
  • Black, brown, or gray soft, elongated body
  • Produce mucus from their body for movement
  • Appear slimy and gelatinous.
Symptoms of Damage
  • Holes with jagged edges on leaves
  • Slimy or silvery scraping marks on leaf surfaces
  • Slimy trails on and around the orchids
Control Methods
  • Fill big cans with beer and place them around the area
  • Sprinkle diatomaceous earth on them
  • Handpick them in the morning or at night
Life Cycle
  • Eggs
  • Larvae
  • Adults

Slugs and snails commonly attack young orchids’ leaves, flowers, stems, and roots, leaving a slimy trail in their wake. However, they are more prevalent and cause significant damage to orchids grown outdoors or in greenhouses because they can’t easily access houseplant, but if they do, it would be due to the moisture.

These locations make it easy for them to hide under branches, shrubs, or any other place that provides warmth and moisture. You can remove these mollusks by handpicking them or placing barriers around your orchids, or even a beer trap that would have them drawn.

2. Spider Mites

Spider Mites Consumer of Orchid

Distinguish Characteristics
  • Small, simple, oval-shaped bodies without wings or antennae
  • They can be red, brown, yellow, or green with or without spots
  • Spin small, silk, white webs on the undersides of leaves
Symptoms of Damage
  • Yellowish or white spotting on the surfaces or undersides of leaves
  • Leaves begin to turn yellow, wilt, or drop
  • Leaves begin to look silvery on the undersides
Control Methods
  • Spray neem oil or insecticidal soaps on infested plants
  • Introduce ladybugs or predatory mites
  • Keep orchid leaves and growing areas dust and dirt free always
Life Cycle
  • Egg
  • Six-legged larva
  • Eight-legged nymphs
  • Eight-legged adult

Spider mites are tiny pests the size of a full stop that feeds on orchids by sucking nutrients from the tissues of their leaves. These orchid mites don’t cause severe damage in small numbers, but they reproduce quickly, becoming large and causing severe problems for the plant in a short time.

For this purpose, the best way to get rid of them is by regularly applying neem oil or insecticidal soaps until the infestation is gone.

3. CaterpillarsCaterpillars Eat Orchid

Distinguish Characteristics
  • Soft, segmented, cylindrical bodies
  • Six small eyes on each side of the head detect light
  • Three pairs of true legs on the thorax and many pairs of prolegs on the abdomen
Symptoms of Damage
  • Distorted, rolled-up, or irregular-shaped leaves fastened with silk
  • Fecal waste on leaves where they have fed
  • Skeletonized leaves or holes with ragged edges
Control Methods
  • Handpick them off the orchids and drop them in a bowl of tepid water or crush them
  • Introduce stink bugs, fireflies, or soldier beetles to feed on them
  • Use Bacillus thuringiensis, neem oil, or insecticidal soaps
Life Cycle
  • Egg
  • Larva
  • Pupa
  • Butterfly

Caterpillars are the larvae of butterflies that feed in between the veins of leaf and flower tissues. Adult caterpillars start feeding from the leaf margins until they’ve devoured the entire leaf, as they love to feed on them.

One of the most effective ways to destroy caterpillars on your orchids is to use Bacillus thuringiensis, a bacterium that produces toxic proteins, and your orchids will no longer look crooked because of their bites.

4. GrasshoppersGrasshoppers Consume Orchid

Distinguish Characteristics
  • Brown, black, or green ringlike segmented bodies
  • Three pairs of legs with enlarged hind legs for jumping
  • Two pairs of wings and single pair of antennae
Symptoms of Damage
  • Shredded or irregular-shaped holes in leaves
  • Presence of grasshoppers on the leaves
  • Stunted growth and deformed flowers that don’t open properly
Control Methods
  • Coating spray of Carbryl or Confidor
  • Use diatomaceous earth or neem oil
  • Use pesticidal soaps
Life Cycle
  • Egg
  • Nymph
  • Adult

Grasshoppers are intelligent insects that target new growths and flowers of orchids. For this, you have to find grasshopper infestations on orchids grown on or near grasslands, and they can cause severe damage quickly.

You can apply diatomaceous earth to kill them or apply a coating of Carbryl or Confidor on them, and they will no longer feel welcome.

5. CockroachesCockroaches Eating Orchid

Distinguish Characteristics
  • Shiny reddish, or brown, flat, oval bodies with long, flexible, threadlike antennae
  • Males have two pairs of wings, and females are wingless
  • Three pairs of legs and a small head
Symptoms of Damage
  • Chewed and damaged roots
  • Irregular-shaped holes in leaves that are smaller than those of caterpillars
  • Small fecal droppings on leaves or in the soil
Control Methods
  • Clean areas surrounding the orchids and spray with a pyrethrum solution
  • Submerge container orchids in a bucket of water and put the roaches that float to the top in a bucket of soapy water
  • Apply an insecticide over some time
Life Cycle
  • Eggs
  • Nymph
  • Adult roaches

Cockroaches are some of the most annoying creatures to have in your home and feed on your orchids’ leaves, roots, and flowers after months of care and hard work. Roaches can attack indoor and outdoor orchids, depending on which location provides more warmth.

You can control these pests by using a pyrethrum solution or natural deterrents like garlic or tea tree oil spray. This will also help you as you won’t see them growing and producing numerous their eggs around the leaves.

6. BeetlesBeetles Consumers of Orchid

Distinguish Characteristics
  • Hard exoskeleton with two pairs of forewings and long, threadlike antennae
  • A pair of the compound and adaptable eyes
  • Three pairs of multisegmented legs
Symptoms of Damage
  • Root damage due to larval feeding
  • Chewed or damaged flowers or leaves with irregular holes and discoloration
  • Presence of beetles and their eggs on orchid flowers and pseudobulbs
Control Methods
  • Place a large piece of paper under the plants and shake them to dislodge beetles
  • Put the beetles in a large bucket of soapy water to kill them
  • Apply a pyrethrum and isopropyl alcohol solution at night
Life Cycle
  • Egg
  • Larva
  • Pupa
  • Adult

Beetles feed on orchid leaves and flowers and lay eggs in their pseudobulbs, feeding on the plant’s tissues when they hatch. On the bright side, you should know that the beetles are most active at night, so they are dormant during the day and can easily be dislodged by shaking the plants.

Ensure you place a large cloth or paper underneath the plant while shaking, so you can collect the beetles and crush them.

7. Rats and MiceRats and Mice Eat Orchid

Distinguish Characteristics
  • A long body tapered towards the head with bulging eyeballs
  • Two pairs of legs with four front toes ad five hind toes
  • Shorthairs, a long tail, and a long snout with whiskers
Symptoms of Damage
  • Tunnels or burrows in the growing medium
  • Damaged flowers, shredding and irregularly shaped holes on leaves, and gnawed stems
  • Black fecal dropping resembling rice
Control Methods
  • Use a granular, ultrasonic, or liquid pest repellant
  • Use humane tape
Life Cycle
  •  Pups
  • Juvenile
  • Adults

Rats and mice are common house rodents, but they become pests when they start feeding on the flowers and pseudobulbs of your orchids. If you eliminate them before the infestation worsens, your orchids might survive because the damage would be big.

Otherwise, they can do severe damage to them. You can eliminate these rodents using a pest repellent, placing some humane tape, or by planting mint leaves around your orchids as they find the smell offensive, and they will no longer aim to come again.

8. Fungus GnatsFungus Gnats Digest Orchid

Distinguish Characteristics
  • Small, dark insects with long, slender legs and thin wings
  • A pair of segmented antennae that are longer than their heads
  • Attracted to orchids with fragrant flowers
Symptoms of Damage
  • Small, black-flying insects resembling mosquitoes around the plants
  • Growth medium or soil turning black due to fungal growth
  • Tiny, white larvae in the soil or growth medium
Control Methods
  • Use yellow sticky traps to trap adult gnats
  • Introduce predatory mites to feed on them and their larvae
  • Apply Pyrethrins or Bacillus thuringiensis on infested plants
Life Cycle
  • Egg
  • Larva
  • Pupa
  • Adult

Fungus gnats feed on orchids and have an irritating habit of flying around people’s faces. However, they are completely harmless since they don’t bite. They are only attracted to moist, warm soil, where they lay their eggs, allowing their larvae to feed on the fungi in the orchid’s roots, decaying and weakening the plant.

You can use yellow sticky traps to trap adult fungus gnats and Bacillus thuringiensis to feed on their larvae so they won’t have time to hatch and eat the plant.

9. DeerDeer Loves Eating Orchid

Distinguish Characteristics
  • Big, brown, gray, or red coat with four-chambered stomachs
  • Two pairs of long, spindly legs with two hooves on each foot
  • Long ears and a short tail
Symptoms of Damage
  • Missing or partially eaten leaves and flowers with ragged edges
  • Stunted orchids with broken or damaged stems
  • Dear fecal droppings around the orchids
Control Methods
  • Missing or partially eaten leaves and flowers with ragged edges
  • Stunted orchids with broken or damaged stems
  • Dear fecal droppings around the orchids
Life Cycle
  • Fawn
  • Yearling
  • Adult

If you grow your orchids outdoors without a fence or barricade, you might provide deer in the area with free meals. Deer are attracted to orchids with fragrant flowers, but they generally eat orchids because their leaves are highly nutritious.

For this, you can use scare tactics to get rid of deer from your garden or put up a fence around your orchids or you can also plant some flowers that are deer repellent.

10. MothsOrchid Digester Moths

Distinguish Characteristics
  • Segmented bodies with an exoskeleton
  • Three pairs of jointed legs
  • A pair of compound eyes and antennae
Symptoms of Damage
  • Webworms can spin webs around flowers or leaves, causing them to stick together and hindering growth
  • Withered or brown flowers and leaves with holes or ragged edges
  • Presence of cocoons or caterpillars, indicating their larvae is present
Control Methods
  • Introduce beneficial insects such as lacewings, predatory wasps, or ladybugs to feed on their caterpillars
  • Use insecticides or neem oil
  • Handpick them off your orchids
Life Cycle
  • Egg
  • Larva
  • Cocoon
  • Adult moth

Moths often act as pollinators for the flowers of orchids, but the leaves become the next best thing when they change appetite. Not all moths feed on orchids, but those that do lots of damage. You can control moths and their caterpillars by introducing predatory insects to feed on them or by spraying them with neem oil.

Conclusion

Orchids are beautiful plants to grow in your garden and your home, but they can’t stay healthy by having their parts eaten by animals and insects. Here are a few points to note about organisms that eat orchids:

  • Physical fences and barricades can help keep deer and slugs away from your orchids.
  • Maintaining a clean environment can help prevent pests from attacking your plants.
  • It is best to eliminate pests and animals immediately after noticing any of them on your orchids to prevent killing.

You now know what could be eating your orchids, so next time you notice any of the symptoms in this article, you’ll know what is causing them and how to control them.

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