Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Wild Parsnip"”.
-
A Combined Method for Vegetation Classification Based on Visible Bands from UAV Images: A Case Study for Invasive Wild Parsnip Plants
Wild parsnip is an invasive plant that has serious health risks to humans due to the toxin in its sap. Monitoring its presence and spread has been challenging for conservation authorities due to its small size and irregular shape. On traditional remotely-sensed images acquired by satellites or …
-
The influence of an umbelliferous understory on the parasites of organic apple orchards in Canterbury
The influence of a wild parsnip (Pastinaca sativa L.) ground cover on the parasites of organic apple orchards was examined. The indirect influences on the major pest species, codling moth (Cydia pomonella L.) and lightbrown apple moth (Epiphyas postvittana (Walker)) were also investigated. Sampling …
-
Adaptations to Furanocoumarins of Pastinaca Sativa by Depressaria Pastinacella (Lepidoptera: Oecophoridae)
… toxic to a wide variety of organisms. In the wild parsnip, Pastinaca sativa (Umbelliferae), these compounds are most concentrated in the floral parts. Despite these allelochemicals, the parsnip webworm, Depressaria pastinacella (Lepidoptera: Oecophoridae), feeds almost exclusively on the …
-
Patterns of association in a co-introduced insect herbivore and parasitoid wasp
… determine the invasion routes of the herbivorous parsnip webworm (Depressaria pastinacella; Lepidoptera: Depressariidae), and its primary parasitoid, Copidosoma sosares (Hymenoptera: Encyrtidae) to address the importance of shared population history and ecological fitting in shaping species …
-
Consequences of global redistribution on the ecology and evolution of the invasive weed Pastinaca sativa and its associated insect fauna
… persist and change over space and time. The wild parsnip (Pastinaca sativa L., Apiaceae) and its coevolved specialist florivore, the parsnip webworm (Depressaria pastinacella Duponchel, Lepidoptera: Oecophoridae), are native to Europe but they occur as an invasive association throughout the …