Will Peri-Urban Cydia pomonella (Lepidoptera: Tortricidae) Challenge Local Eradication?
| Autor: | Georgia Paterson, James T S Walker, Rachael M. Horner, Rodelyn Jaksons, George L. W. Perry, David M. Suckling |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Tortricidae Codling moth market access apple sterile insect technique Cydia pomonella 01 natural sciences Article Lepidoptera genitalia Sterile insect technique pheromone trap eradication lcsh:Science Phytosanitary certification biology Host (biology) public fungi suppression biology.organism_classification Pheromone trap 010602 entomology Malus domestica Agronomy Insect Science lcsh:Q PEST analysis peri-urban biosecurity 010606 plant biology & botany |
| Zdroj: | Insects Volume 11 Issue 4 Insects, Vol 11, Iss 207, p 207 (2020) |
| ISSN: | 2075-4450 |
| Popis: | Codling moth, Cydia pomonella (Lepidoptera: Tortricidae), is a phytosanitary pest of New Zealand&rsquo s export apples. The sterile insect technique supplements other controls in an eradication attempt at an isolated group of orchards in Hawke&rsquo s Bay, New Zealand. There has been no attempt in New Zealand to characterize potential sources of uncontrolled peri-urban populations, which we predicted to be larger than in managed orchards. We installed 200 pheromone traps across Hastings city, which averaged 0.32 moths/trap/week. We also mapped host trees around the pilot eradication orchards and installed 28 traps in rural Ongaonga, which averaged 0.59 moths/trap/week. In Hastings, traps in host trees caught significantly more males than traps in non-host trees, and spatial interpolation showed evidence of spatial clustering. Traps in orchards operating the most stringent codling moth management averaged half the catch rate of Hastings peri-urban traps. Orchards with less rigorous moth control had a 5-fold higher trap catch rate. We conclude that peri-urban populations are significant and ubiquitous, and that special measures to reduce pest prevalence are needed to achieve area-wide suppression and reduce the risk of immigration into export orchards. Because the location of all host trees in Hastings is not known, it could be more cost-effectively assumed that hosts are ubiquitous across the city and the area treated accordingly. |
| Databáze: | OpenAIRE |
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