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
Ant on a rubber rope the end of each second. Let formula_16 be the proportion of the distance from the starting-point to the target-point which the ant has covered at time "t". So formula_17. In the first second the ant travels distance formula_18, which is formula_19 of the distance from the starting-point to the target-point (which is formula_20 throughout the first second). When the rope stretches suddenly and instantaneously, formula_16 remains unchanged, because the ant moves along with the rubber where it is at that moment. So formula_22. In the next second the ant travels distance formula_18 again, which is formula_24 of the distance from