Sumac Leaf Galls. Small wart like growth on the upper and lower leaf surfaces. sumac galls are caused by a species of aphid. the sumac leaf gall aphid, melaphis rhois, galls are largely inconsequential to plant health, but are an interesting biological curiosity. The females lay their eggs on the leaf and cause leaf tissue to grow around them in a characteristic pattern. apparently females lay an egg on the underside of a sumac leaf, which causes a gall to start forming—creating a nursery, complete with food, for its offspring. a more recent photo of the galls on the staghorn sumac (rhus typhina) leaves. Bumps start out green in early season, turning. That single aphid resulting from the deposited egg then produces asexually within the gall— by parthenogenesis —so that many clones of itself eventually also fill the gall. It happened that one late august day i was out with some kids on a longer hike when we walked through a gauntlet of tall sumac shrubs. Once the aphids mature inside the gall, they exit and go looking for another sumac nearby.
from www.walterreeves.com
the sumac leaf gall aphid, melaphis rhois, galls are largely inconsequential to plant health, but are an interesting biological curiosity. It happened that one late august day i was out with some kids on a longer hike when we walked through a gauntlet of tall sumac shrubs. That single aphid resulting from the deposited egg then produces asexually within the gall— by parthenogenesis —so that many clones of itself eventually also fill the gall. Once the aphids mature inside the gall, they exit and go looking for another sumac nearby. a more recent photo of the galls on the staghorn sumac (rhus typhina) leaves. apparently females lay an egg on the underside of a sumac leaf, which causes a gall to start forming—creating a nursery, complete with food, for its offspring. The females lay their eggs on the leaf and cause leaf tissue to grow around them in a characteristic pattern. Bumps start out green in early season, turning. sumac galls are caused by a species of aphid. Small wart like growth on the upper and lower leaf surfaces.
Sumac Leaf Galls Walter Reeves The Gardener
Sumac Leaf Galls Small wart like growth on the upper and lower leaf surfaces. sumac galls are caused by a species of aphid. It happened that one late august day i was out with some kids on a longer hike when we walked through a gauntlet of tall sumac shrubs. The females lay their eggs on the leaf and cause leaf tissue to grow around them in a characteristic pattern. Bumps start out green in early season, turning. a more recent photo of the galls on the staghorn sumac (rhus typhina) leaves. apparently females lay an egg on the underside of a sumac leaf, which causes a gall to start forming—creating a nursery, complete with food, for its offspring. the sumac leaf gall aphid, melaphis rhois, galls are largely inconsequential to plant health, but are an interesting biological curiosity. Small wart like growth on the upper and lower leaf surfaces. That single aphid resulting from the deposited egg then produces asexually within the gall— by parthenogenesis —so that many clones of itself eventually also fill the gall. Once the aphids mature inside the gall, they exit and go looking for another sumac nearby.
