Plant Pest Control Branch

Eradicates, contains, or controls pests of plants which could cause significant economic damage to agriculture, our environment, and quality of life. Also certifies and inspects seeds.

The primary mission of the Hawaii Department of Agriculture’s Plant Pest Control Branch is to provide a favorable environment for agricultural development in Hawaii by limiting plant pest populations that have the potential to cause significant economic damage. This is achieved through statewide programs using chemical, mechanical, biological, and integrated control measures to eradicate or control plant pests, including insects and mites, molluscs, weeds, and plant pathogens.

New Pest Advisories keep the public abreast of new threats to our environment (see below). Other responsibilities of the branch include certification of seed and inspection and certification of honey bee queens for export.

The Plant Pest Control Branch is composed of three sections:

  • The Biological Control Section engages primarily in work commonly referred to as “classical” biological control, the importation and colonization of natural enemies (predators, parasites, and pathogens) to control pests.
  • The Chemical/Mechanical Control Section uses chemical (pesticides) and/or mechanical (roguing, trapping, digging, etc.) methods to control plant pests such as insects, snails, noxious weeds, and plant diseases. Whenever possible, chemical and mechanical methods are integrated, resulting in an optimum level of control with fewer chemicals. The Chemical/Mechanical Control Section is also called upon to act on plant pests in the early stages of infestation when there is a chance for eradication.
  • Apiary Program and Hawaii Beekeeper Registry




 PPC In the News:

  • Oct. 5, 2012 – HDOA entomologist Darcy Oishi gave a presentation to the Hawai`i Conservation Alliance on the topic of biological control of plant pests and diseases.  `Oiwi TV posted this video clip which explains the research process and some misconceptions:

Plant Pest Control Information:

New Pest Advisories

Contact Information:

email: [email protected]  


Hawaiʻi Department of Agriculture
Plant Pest Control Branch
1428 South King Street
Honolulu, HI 96814-2512
Phone: (808) 973-9530

Oʻahu Ant Lab (Little Fire Ants)
(808) 824-1366

Hawaiʻi Department of Agriculture
Plant Pest Control Branch
4395A Pua Loke Street
Lihue, HI 96766-1673
Phone: (808) 241-7138

Maui Nui (Maui, Molokaʻi, Lānaʻi)
Hawaiʻi Department of Agriculture
Plant Pest Control Branch
635 Mua Street
Kahului, HI 96732-2322
Phone: (808) 873-3555

Hawaiʻi Department of Agriculture
Plant Pest Control Branch
16 East Lanikaula Street
Hilo, Hawaii 96720
Phone: (808) 974-4140

Hilo Ant Lab (Little Fire Ants)
(808) 315-5656

Hawaiʻi Department of Agriculture
Plant Pest Control Branch
82-6130 Mamalahoa Hwy
Captain Cook, Hawaii 96704
Phone: (808) 323-7579

Kona Ant Lab (Little Fire Ants)
(808) 209-9014