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ARS Home » Northeast Area » Newark, Delaware » Beneficial Insects Introduction Research Unit » Research » Research Project #438705

Research Project: Distribution and Natural Enemy Complex of the Roseau Cane Scale in Asia - Year 2

Location: Beneficial Insects Introduction Research Unit

Project Number: 8010-22000-033-18-A
Project Type: Cooperative Agreement

Start Date: Aug 1, 2020
End Date: Aug 31, 2021

Objective:
Discover and characterize natural enemies of the invasive roseau cane scale (RCS) and determine their natural distribution range in Asia; and characterize their association with host plant genotype differences that may be related to scale insect colonization success. RCS is native to NE Asia and has become invasive along the US Gulf Coast, contributing to coastal erosion and silting of navigation channels. ARS and APHIS are coordinating efforts with US and Asian cooperators to find a biological control solution that can help manage the invasive scale.

Approach:
1. Work with co-PIs to produce a map of the tentative range of Roseau cane and RCS from museum and archive research. 2. Work with co-PIs to provide collecting protocols to Asian collaborators and organize spring collections. 3. Continue current research to collect scale samples and host plant material in Louisiana for genetic comparative analyses. 4. Coordinate with the USDA-ARS Systematic Entomology Laboratory to start genetic characterization and comparison of scale and parasitoid populations from native and introduced range for identification of a putative source population. Coordinate with APHIS to continue the genetic characterization and comparison of the host plant samples from samples collected in Asia as compared to the phylogenic analysis of the samples collected in Louisiana. 5. Update climate matching analyses.