Claim · model-written summary
Eight percent of damaged shoots had upper-leaf damage attributable chiefly to Archanara oblonga.
- Interactor
- A. oblonga
Capsula oblongae0herbivore - Outcome
- damaged shoots had damage to upper leavese0
- Value
- Eight percente0
TyphaVerbatim
e0“Eight percent of damaged shoots had damage to upper leaves attributable to lepidopteran miner-borers (chiefly A. oblonga).”
e1“Typha spp.”
Title
Insect Herbivory in MinnesotaTyphaStands
J. M. Penko; D. C. Pratt Journal of Freshwater Ecology 1987. doi:10.1080/02705060.1987.9664657
Other claims from this paper (13)
- Observation Six lepidopterans and two aphids were observed feeding on Typha shoots.
- Observation Archanara oblonga was the most common herbivorous insect in natural Typha stands.
- Observation Bellura obliqua was the most common miner-borer in newly planted cultivated Typha stands.
- Observation About 15 percent of Typha shoots showed insect herbivory evidence.
- Observation Five percent of Typha shoots had stem damage.
- Observation Less than one percent of Typha shoots were damaged by leaf-chewing insects.
- Association Typha latifolia stands were more heavily infested than T. angustifolia or T. glauca stands.
- Association Southern Minnesota Typha stands were more heavily infested than northeastern Minnesota stands.
- Association Water depth had no significant effect on Typha infestation rate.
- Association Shoot nitrogen content had no significant effect on Typha infestation rate.
- Observation Most infested Typha shoots had under 20% leaf-area reduction.
- Observation Much damage from lepidopteran miner-borers in Typha was indirect.
- Recommendation The authors considered insect pests unlikely to hamper Minnesota Typha bio-energy production.