Aloha! Read below to find out what OISC has been up to this month.
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Certified tree climber Steven Connolly lending his skills to help treat a Little Fire Ant infestation living in the canopy of this gunpowder tree. 
March 2016 Report
  • Steven Connolly of HECO, a certified tree-climber, helped HDOA, OISC and the Hawaii Ant Lab treat a gunpowder tree infested with little fire ant. Steven treated a pothos vine that was providing good habitat for the ants with herbicide and applied pesticide for the ants. OISC supplied and mixed the herbicide and helped test for ants around the base of the tree. OISC also performed trail maintenance in the infestation area for regular monitoring work.
  • The crew found an immature devil weed (Chromolaena odorata) in Haleʿiwa, which is about 5 miles from the main infestation at KTA. This is the second time this species has been found in this location.
  • Crew surveyed 167 acres for devil weed at Kahuku Training Area and removed 40 mature and 569 immature plants.
  • Regular early detection surveys for Naio thrips and little fire ant found none. Trap monitoring for Coconut Rhinoceros Beetle on the Windward side also found none. 
  • Pest response specialist heard but was not able to catch a coqui frog in Waimānalo.
  • Crew conducted 828 acres of aerial surveys and 286 acres of ground surveys for miconia. Only found 4 immature trees in Kahaluʿu.
  • Crew did comprehensive survey for Cape Ivy in Pālehua, there was only minimal re-growth in previously treated spots. Survey went so fast the crew finally had time to expand the search area outside a 100 meter buffer and into a 200 merter buffer. Unfortunately, once expanding the survey, the crew found a medium-sized patch of about 60 plants. OISC will continue to delimit. 
  • Set up Rapid ʿŌhiʿa Death informational booth at “Ag Day at the Capitol”.
  • Met with state legislators to brief them about the status of  Rapid ʿŌhiʿa Death. (Everyone can keep up with the news about this disease at and on facebook at
  • Participated in CTAHR’s Agricultural and Environmental Awareness Day which bussed in about 500 students to visit the booths and ask questions.    
  • Participated in career day at Mākaha elementary.
  • OISC and Representative Cynthia Thielen presented information about Little Fire Ant to 45 kindergarteners at Le Jardin Academy.
  • Presented at Holy Family Catholic Academy and UH PEPS class.
  • Presented Little Fire Ant curriculum at St. Mark’s school in Kāneʿohe.
The field crew flags off devil weed hotspots for later follow-up treatment by the O'ahu Army Natural Resources Program. Nobody likes surveying through guinea grass (top photo). Visibility is low and ledges are sometimes hidden in the grass. So the field crew shares its feelings for this species with the OANRP crew on the flagging. 
Copyright © 2016 Oahu Invasive Species Committee, All rights reserved.

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