Young adults in spring and early summer are green with yellowish head and thorax, whereas they darken to a rusty red hue towards the autumn.

The new generation develops on young shoots until emerging as adults in May/June, after which they migrate to overwintering sites where they stay dormant until the next spring.

[2] As other psyllids, they mainly cause damage indirectly by exuding sticky liquid which stains the fruits and promotes growth of mold.

[1] Like other psyllids, C. pyrisuga adults use a combination of pheromones and vibrational signals to recognize and locate mates on the host plant.

[4] Recordings of this species have revealed that psyllids do not produce vibrational signals with stridulation (rubbing of body parts together) as was commonly thought.