Black field crickets damage lawns by feeding on the growth centre of grasses. In large numbers they can severely damage lawns and become a nuisance in homes.
To get rid of field crickets follow these steps:
Kiwicare LAWNGARD PRILLS will kill the insects in the soil as eggs and nymphs and adults the hide in cracks in the ground will also be killed on contact with the insecticide.
A bait can be made by mixing MALDISON INSECT CONTROL with grain (wheat, barley or crushed maize) at the rate of 12.5g to 1kg grain and spread on 500-1000m2 depending on extent of infestation. This should applied around February when the adults appear.
See advice from Northland Regional Council page 15.
Crickets will enter buildings close to the lawns and pasture where they are feeding and breeding. NO BUGS SUPER can be used to treat surfaces and reduce the infestation of this nuisance pest.
Black field crickets are normally a problem only in Northland, Auckland, parts of Taranaki, and Hawke’s Bay. Eggs are laid in moist soil from February to May, and nymphs (immature adults) emerge from November to January. Adults appear from February and live for two or three months.
They inhabit cracks in the soil and eat surrounding crowns of grasses, which usually die. During long drought periods the growing crowns of grasses are attacked; this often kills the plants and leaves the soil open to weed invasion.
When numbers grow large they can often invade homes becoming a nuisance pest.
The scientific name of black field cricket is - Teleogryllus commodus