Gall-inducing insect Gall-inducing insect A gall-inducing insect is any insect that can cause the growth of galls within plants. The term gall fly is also used to cover these species, although most are not true flies. There are several groups of insects that meet this description. They include the gall wasps, scales, gall midges, aphids, psyllids and certain species of leafminer flies. Galls are growth deformities induced in certain plants by various insects which are mostly species-specific. The gall's form or type depends on what organism is attacking the plant and where the plant is being attacked. Based on the form, there
Yellow crazy ant were also more aggressive toward other ant species and explored their environments more. This is believed to show why the ants decline when deprived access to scale insects in the field, and confirm reduced honey dew will greatly reduce the ants ability to form super colonies. While controlling the yellow lac scale insect is expected to control the yellow crazy ant on Christmas Island, on mainland Australia it is thought this would not help. There are at least a dozen honey dew producing insects as well as extrafloral nectar from native acacia trees all of which fuel yellow crazy ants.