Pest Lexicon – Green Guardia

Mole Crickets: Recognizing soil tunnels & natural containment

Mole crickets live in the soil and dig sprawling tunnel systems. In doing so, they can damage roots, "clip" young plants, and undermine lawn areas. With targeted natural measures and the right beneficial organism, the infestation can be effectively reduced.

ⓘGryllotalpa · Mole cricket #Tunnels · Root damage · Young plants

What is a mole cricket?

The mole cricket is a soil-dwelling insect with powerful digging legs. It lives predominantly underground, feeds on roots, seedlings, and small soil animals depending on availability, and can loosen or damage plants through its digging activity. Damage occurs especially in vegetable beds, with young plants, and in loose soil.

soil-dwelling digs tunnels threatens young plants

Important: Do not confuse mole crickets with moles: Moles are protected mammals. Mole crickets are insects – but the damage looks similarly "undermined."

How to recognize an infestation

shallow, underground tunnels near the surface
mounds of soil or small "ridges" in the bed/lawn
wilting young plants despite sufficient watering
kinked/loosened plants (roots undermined)
feeding on seedlings and root areas

Green Guardia Tip: Tunnels can often be made visible if you lightly moisten the soil: Hollow spaces will collapse faster, revealing typical tracks.

Which areas are particularly affected?

Vegetable beds and cold frames
loose, humus-rich soil
lawn areas (especially newly laid areas)
areas near compost and damp garden sections

Why do mole crickets appear in the garden?

damp, loose soils provide ideal living conditions
abundant food (roots, seedlings, soil organisms)
undisturbed areas over long periods

Natural measures & suitable beneficials

1. Protect young plants

Use planting rings/protective collars (especially for freshly planted young plants)
Regularly inspect beds during the establishment phase

2. Soil management

carefully loosen heavily affected areas and disturb tunnels
avoid waterlogging; water consistently but moderately

Beneficial organism recommendation: Nematodes (Steinernema) against young stages

Nematodes (beneficial roundworms, e.g., Steinernema species) are an excellent natural option because they are active in the soil – exactly where mole crickets live.

Why suitable: Mole crickets spend most of their time underground – nematodes reach them in their habitat.
Why meaningful: They are particularly effective against young stages (nymphs) before major damage occurs.
Important: Soil moisture is crucial – nematodes need moist soil to remain active.

Why this recommendation works: Since mole crickets are rarely visible on the surface, surface-level measures are often insufficient. Nematodes are mobile within the soil and can reduce the infestation at its source.

FAQ about the mole cricket

Is the mole cricket dangerous to the entire garden?

Usually, young plants and sensitive beds are most affected. In the case of a severe infestation, however, damage can also occur in lawns and larger areas.

How do I recognize the difference from a mole?

Moles typically create larger mounds. Mole crickets tend to cause shallow tunnels and "ridges" near the surface – plus damage to seedlings/young plants.

When is the best time for nematodes?

When young stages are active – often from spring to early summer, or later depending on the weather. Crucial factors are moist soil and appropriate temperatures.

Can the infestation return?

Yes, depending on site conditions. With soil management and nematodes, however, the pressure can often be significantly reduced.