Tag: fire ants

April 16, 2014 General Ag News and Notes Post a Comment

Ant infestation covers 4 acres in Waimanalo

HONOLULU — An extensive survey of an area in Waimanalo has determined approximately 4 acres are infested with little fire ants, tiny invasive ants that can inflict painful stings. Crews surveyed more than 50 acres from Kumuhau Street to Mahailua Street in Waimanalo and determined that the infestation area is on state land and in mulch areas located outside nurseries in that area. Little fire ants were detected previously on hapuu from Hawaii Island at a few nurseries and garden shops earlier this year, but those areas were treated and are now clear of little fire ants.

Survey operations were headed by the Hawaii Department of Agriculture and involved several agencies including: the Department of Land and Natural Resources, Hawaii Ant Laboratory, Oahu Invasive Species Committee, U.S. Fish & Wildlife Service, Coordinating Group on Alien Pest Species, Hawaii Invasive Species Council, The Nature Conservancy, University of Hawaii, City & County of Honolulu, and Hawaii National Guard.

Little fire ants have been found on Hawaii Island since 1999. In late December, the ant was detected on hapuu logs (Hawaiian fern) at retail stores on Maui and Oahu. Since its detection, Oahu and Maui nurseries have been surveyed. Five Oahu nurseries, three of which were in Waimanalo, were found to have small infestations of little fire ants, which were treated and are clear of the ants.

Ant infestation covers 4 acres in Waimanalo | West Hawaii Today

February 13, 2014 General Ag News and Notes Post a Comment

Measure in state Legislature targets alien little fire ants

A bill in the state House would provide $500,000 toward destroying little fire ants.

Of all the ants in all the world, Hawaii had to get bitten by this one.

Hawaii lawmakers on Monday advanced a bill aiming to study and kill the little fire ant, a hard-stinging pipsqueak that threatens the state’s economy and ecology.

House Bill 2469 would provide more than $500,000 toward coordinating efforts to corral and destroy the little fire ant. It includes money to pay for trained dogs to sniff out the tiny pests and for public outreach.

At 1/16th of an inch long, the copper-colored ant does not cut a formidable figure. But since it first landed on Hawaii island 15 years ago, possibly as a stowaway on a potted plant from Florida, the ant has spread on the Big Island and has popped up on Maui, Oahu and Kauai.

Of the perhaps 30,000 species of ants on Earth, only six are considered “really nasty,” said Cas Vanderwoude, the research manager of the Hawaii Ant Lab at the University of Hawaii. Of those six, he said, the little fire ant poses the greatest potential threat to Hawaii.

“Our lifestyle and climate just suit this animal down to a T,” he said. “If I was a little fire ant and wanted to go on vacation, I’d come to Hawaii.”

The ants have proved onerous for several reasons, Vanderwoude said. They live in trees, where they infest crops and bite agricultural workers. They also live on the ground, where they attack people and pets, perhaps partially blinding cats and dogs by stinging their eyes. A single square foot of infested ground can contain 2,000 ants.

The ants travel between islands by hitching rides on crops and propagated plants. That threatens to undermine agricultural exchange among the islands and beyond. The ants also drive away insects, birds, lizards and mammals that prey on other pest insects, further harming crops.

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April 25, 2011 General Ag News and Notes Post a Comment

The incredible floating fire ant

By Brian Vastag,

Congress — and perhaps the rest of us — could learn a thing or two about teamwork from Solenopsis invicta, the dreaded fire ant.

When in danger of drowning, a colony of the critters — thousands of them — will save themselves by joining forces and forming a raft. They pile together and lock legs and jaws. So bound, an ant raft can survive for months.

Engineers studying animal oddities now report that together, the ants aren’t just stronger. They’re floatier. Airtight, even.

“Water does not penetrate the raft,” said Nathan Mlot, a mechanical engineer at the Georgia Institute of Technology and lead author of the ant-raft report published in Monday’s Proceedings of the National Academies. Even the bottom layer of ants stays dry, he said.

Engineers, Mlot went on to explain, think the rafting behavior might aid the quest for new waterproof materials and offer lessons for robotics research.

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October 28, 2010 General Ag News and Notes Post a Comment

Admired ag inspector turns in his badge

After 30 years of protecting native animals and plants, the head of Hawaii’s agricultural inspection operation leaves behind a short-handed and beleaguered team today, worried that invading species are slipping into the islands.

“Shipments are backed up but are still being inspected. That’s the good part,” said Domingo Cravalho Jr., who is retiring as inspection and compliance section chief for the state Department of Agriculture. “Because of the lack of resources and lack of inspectors and the reduction in the amount of good inspections, things are getting through. …

“It’s overwhelming at times and some individuals may be overlooking things or bypassing things. Under the circumstances, we just don’t have enough eyes and ears out there.”

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October 22, 2010 General Ag News and Notes Post a Comment

Little fire ant infestation eradicated

WAILUKU – An infestation of little fire ants on Maui has been eradicated, the state Department of Agriculture announced Thursday.

The department credited the success to its rapid response and the development of innovative pest control methods.

The ants (Wasmannia auropunctata) can deliver a painful sting. They were discovered in October on a Waihee farm, and the Agriculture Department launched what it said was an “aggressive response to survey, contain and treat the infestation.”

The department obtained a special permit from the U.S. Environmental Protection Agency to use an experimental ant bait developed by scientist Cas Vanderwoude, with the Pacific Cooperative Studies Unit at the University of Hawaii at Manoa.

The new bait provided an alternative to ground treatments to combat the pest, and it allowed the ants to be attacked in trees and vegetation where they nest. The Waihee area had been treated monthly with the ant bait and since February no little fire ants have been detected at the site of the infestation.

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September 5, 2009 General Ag News and Notes Post a Comment

Agricultural inspector layoffs slammed – The Maui News

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KAHULUI – Environmentalists and farmers lashed out Thursday night at the announced layoffs of state agricultural inspectors, arguing that the move planned by the Lingle administration would uproot efforts to preserve the island’s agricultural industry and pristine environment.

Close to 100 people turned out at a Senate Ad Hoc Committee meeting held in the Maui Waena Intermediate School cafeteria. The crowd applauded those who spoke against the layoffs, some even attacking Gov. Linda Lingle.

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