This is the home page for the Agriculture & Natural Resources Program which is part of the University of Guam Cooperative Extension Service. Recently added content is displayed below to give you an idea of what we are currently working on. Please use the left sidebar to search the site for the information you are looking for. For additional help, you may phone the site administrator, Aubrey Moore, at 1-(671)-735-2086.

Video: Little Fire Ant in Hawaii

Here is a video on how the little fire ant is affecting Hawaii. This ant species was detected on Guam in November 2011.

Relative Attractiveness of White and Ultraviolet Light Emmitting Diodes for Rhino Beetles

Rhino beetles are not color blind. They prefer UV LEDs over white ones. See attached.

Arnold Hara's Rhino Beetle Images Taken During his Trip to Guam

Dr. Arnold Hara, an entomologist from the University of Hawaii in Hilo visited Guam during September 2013 to learn about the coconut rhinoceros beetle. He has very kindly shared a presentation he put together using images from this trip. Please see attached files.

No Rhino Pamphlet

The latest version of the No Rhino trifold pamphlet is attached to this post as a PDF file.

Y-tube bioassay with beta-Phellandrene

This experiment was set up after dark, approximately 6 pm, when the beetles are most active.

50ul of beta-Phellandrene were put inside of a heat-sealed plastic straw, with two holes poked into the straw for release of chemical.

The air was set at 3.5 liters per minute. If the CRB did not make a decision at 2 minutes, that subject was taken out of the tube.

20 CRB were used:

1) Jar# 0930, female: at 1:54 min --> air

2) #1471, male: at 2:09 min --> lure

3) # 0154, female: at 4:17 min --> lure

4) # 1349, male: at 15 sec --> air

5) # 0772, male: at 3:21 min -->air

6)# 1172, male: at 17 sec --> air

7)# 0313, male: at 2 min no decision

8) # 0396, female: at 45 sec --> air

9)#1242, male: at 4:12 min --> air

10) # 1434, female: at 5 min --> lure

Cleaned y-tube with Acetone, switched lure sides

11) #1230, female: at 2:18 min -->air

12) # 1282, female: at 2:43 min --> air

13) # 0250, male: at 2:20 min --> air

14) # 1539, male: at 2:20 min --> lure

15) #1226, female: at 2:16 min --> air

16)#1227, female: at 2 min no decision

17) # 1234, male: at 2 min no decision

18) # 1241, female: at 55 sec --> lure

19) #0705, female: at 1:24 min --> air

20)# 0050, female: at 3:30 min --air

Current GMF experiment

On 12/16 we set out to test the efficacy of the entomopathogenic fungus GMF (Green Muscardine Fungus) on third instar larvae of the CRB.

Six larvae were used as a control and placed in mason jars filled with soil and debris from a compost pile found in the field. 2 tablespoons of GMF were then applied to the 1 cubic meter sized compost pile, and the material was stirred up to evenly distribute the spores. This time we took samples from the pile and added the material to the 6 remaining larvae.

There will be a follow up on the experiment every 4 days.

On 12/30/13 all control and treatment larvae were still alive. 20 ml of water were added to each jar to keep the contents moist. So far no GMF is visible.

Online Resources for Mosquito Surveillance on Guam

Armed Forces Pest Management Board This site has a huge pdf document library and mosquito identification guides A search for 'Guam mosquito' yielded more than 700 hits.

Army Medical Department Journal July-Sept 2011 Issue

The Lethal Ovitrap: A Response to the Resurgence of Dengue and Chikungunya 4
Brian C. Zeichner; COL Mustapha Debboun


Mosquitoes of Guam and the Northern Marianas: Distribution, 17
Checklists, and Notes on Mosquito-Borne Pathogens
Leopoldo M. Rueda, PhD; James E. Pecor, BS; Will K. Reeves, PhD; et

Dengue haemorrhagic fever: diagnosis, treatment, prevention and control. 2nd edition. Geneva : World Health Organization. 1997. The contents of this book are available online. The chapter on vector surveillance and control may be of interest.

 

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