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Target Species Accomplishments
Miconia
One mature miconia tree was found in Kalihi Valley.
| Watershed |
Aerial Acres Surveyed |
Ground Acres Surveyed |
Mature Controlled |
Immature
Controlled |
Work Hours |
| Ahuimanu |
32.47 |
36.31 |
0 |
1 |
64.40 |
| Heeia |
0.00 |
33.35 |
0 |
0 |
40.00 |
| Kahaluu |
259 |
0.00 |
0 |
0 |
46 |
| Kalihi |
0.00 |
85 |
1 |
31 |
167 |
| Kawainui |
105 |
0.00 |
0 |
0 |
19 |
| Makiki |
0.00 |
9.18 |
0 |
0 |
40.00 |
| Manoa |
532 |
91 |
0 |
43 |
240 |
| Nuuanu |
0.00 |
76 |
0 |
1 |
182 |
| Waimanalo |
288.02 |
0.00 |
0 |
0 |
20.00 |
| Waimea |
407.79 |
0.00 |
0 |
0 |
20.00 |
| TOTAL |
1624.28 |
349.4 |
0 |
76 |
838.4 |
Cape Ivy
Surveys and treatment of Delairea odorata were conducted over 31 acres in Kaloi watershed culminating in 177 work hours.
Devil weed
Crew conducted surveys and treatment of Chromolaena odorata in Kahuku and in Kahana Valley.
| Watershed |
Acres Surveyed |
Mature |
Immature |
Total Plants |
Work Hours |
| Kahana |
17 |
24 |
1609 |
1633 |
90 |
| Paumalu |
323 |
34 |
503 |
537 |
360 |
Fireweed
Survey and treatment for Senecio madascariensis was conducted in the Keamanea watershed.
| Watershed |
Acres Surveyed |
Mature |
Immature |
Total Plants |
Work Hours |
| Keamanea |
32.60 |
0 |
0 |
0 |
32 |
Fountain grass
Survey for and treatment of Pennisetum setaceum were conducted over 64.55 acres. A new fountain grass located was discovered by a partner agency in Waianae. It is a large mature plant and OISC is working on gaining permission to survey and remove the grass.
| Watershed |
Acres Surveyed |
Mature |
Immature |
Total Plants |
Work Hours |
| Kaneohe |
0.02 |
2 |
1 |
3 |
4.00 |
| Kaupuni* |
0.00 |
0 |
0 |
0 |
0 |
| Waimalu |
64.53 |
0 |
1 |
1 |
20.00 |
| TOTAL |
64.55 |
2 |
2 |
4 |
24 |
Himalayan blackberry
Survey and treatment for Rubis discolor was conducted in Palolo over 6 acres.
| Watershed |
Acres Surveyed |
Mature |
Immature |
Total Plants |
Work Hours |
| Palolo |
13 |
1 |
305 |
306 |
111 |
Pest Response
Coconut rhinoceros beetle (Oryctes rhinoceros)
OISC is working in partnership with the U.S. and Hawaii Department of Agriculture to survey for a new pest species on Oahu, the coconut rhinoceros beetle. This pest beetle is only known to occur on Oahu in the State of Hawaii. It is a pest of a variety of palm and pandanus tree species.
| Watersheds |
Acres Surveyed |
Work Hours |
| Heeia |
101.07 |
4.00 |
| Kaelepulu |
10.29 |
2.00 |
| Kahawai |
6.33 |
4.00 |
| Kalihi |
0 |
0 |
| Kaneohe |
1.58 |
2.00 |
| Kawainui |
5.54 |
2.00 |
| Keaahala |
0.79 |
1.00 |
| Koko Crater |
711.84 |
12.00 |
| Waimanalo |
1.58 |
3.00 |
| TOTAL |
839.02 |
30 |
Coqui (Eleutherodactylus coqui) Early Detection Surveys*
| Watersheds |
Acres Surveyed |
# of surveys |
# of frogs detected |
# of frogs controlled |
Work Hours |
| Kamilonui |
3 |
2 |
0 |
0 |
7 |
* All work is conducted in collaboration with the Hawaii Department of Agriculture
Little fire ant (Wasmannia auropunctata) Early Detection Surveys*
| Watersheds |
Acres Surveyed |
# of surveys |
LFA detected (y/n) |
Work Hours |
| Honouliuli |
4.36 |
2 |
N |
20.00 |
| Kahawai |
14 |
4 |
N |
58.00 |
| Kaloi |
8.46 |
2 |
N |
28.00 |
| Kapalama |
0.323 |
3 |
N |
2.00 |
| Koko Crater |
3.05 |
1 |
N |
7.00 |
| Makapuu |
2.61 |
1 |
N |
8.00 |
| Makaua |
0.88 |
1 |
N |
4.00 |
| Manuwai |
0.119 |
2 |
N |
12.00 |
| Waianu |
1.07 |
1 |
N |
4.00 |
| Waikele |
12 |
3 |
Y |
24.00 |
| Waimanalo |
13 |
15 |
Y |
132.00 |
| Total |
50.402 |
26 |
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240 |
* All work is conducted in collaboration with the Hawaii Department of Agriculture
Naio Thrips (Klambothrips myopori) Early Detection Surveys
| Watersheds |
Acres Surveyed |
# of surveys |
Thrips detected (y/n) |
Work Hours |
| Ala Wai |
0 |
6 |
N |
3.6 |
| Kamiloiki |
0 |
1 |
N |
1.5 |
| Kamilonui |
0 |
1 |
N |
0.6 |
| Manoa |
0 |
1 |
N |
0.6 |
| Palolo |
0 |
1 |
N |
0.6 |
| Waialaenui |
0 |
1 |
N |
0.6 |
| Total |
0 |
11 |
N |
7.5 |
Outreach
OISC outreach staff participated in the Ocean Fest environmental education day at Turtle Bay and the Mililani Mauka Town Hall meeting to discuss the little fire ant infestation. They met with the group, Waihee Ahupuaa Initiative, and presented invasive species information to the Pearlridge Rotary Club, the Friends of Honolulu Botanical Garden and staff of Foster Botanical Garden and the Hoomaluhia Botanical Garden, at two neighborhood board meetings, Waimanalo and Manoa and at the Hawaii Tourism Authority annual conference. OISC staff hosted a little fire ant education table at the Hawaii Conservation Conference and HEEA educational symposium. They also attended the Hawaii State Farm Fair. OISC outreach staff hosted a little fire ant hoike curriculum session at Mililani Middle school. They conducted Best Management Practice trainings for HDOT contractors and attended the environmental council planning meeting at the Capitol.
Volunteer Trip
OISC leads a monthly volunteer trip to Lyon Arboretum to survey and control two incipient invasive species, Ardisia virens and Stromanthe tonckat.
OISC Volunteer Trip Control Results
| Date |
Ardisia virens |
Stromanthe tonckat |
Acres Surveyed |
Volunteer Hours |
Work Hours |
| June 14 |
135 |
383 |
8.54 |
25 |
13 |
| July 12 |
36 |
30 |
7.78 |
20 |
13.25 |
| Aug 23 |
1113 |
213 |
24 |
25 |
15 |
| Total |
1284 |
626 |
NA |
70 |
41.25 |
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Views from miconia surveys this month. There was one large mature plant found in Kalihi Valley.
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