Posts Tagged: light brown apple moth
The UC Statewide IPM Program provides new resources to help workers identify the light brown apple moth.
Nursery workers are our first line of defense in detecting light brown apple moth when growing ornamental plants in commercial nurseries. A new brochure and video can help those in the field distinguish light brown apple moth from several look-alike caterpillars.
Light brown apple moth is currently under a California Department of Food and Agriculture quarantine that regulates the interstate shipment of plants to keep the moth from spreading to new areas. It has been quarantined in various counties throughout coastal California ranging from Mendocino to San Diego.
Correct field identification of the light brown apple moth is the first step in containing the spread of this moth. Unfortunately several other leafroller caterpillars, including the orange tortrix, omnivorous leafroller, avocado leafroller, and apple pandemic moth, look similar to light brown apple moth caterpillars. This makes photo identification tools that can go into the field with workers, like the Field Identification Guide for Light Brown Apple Moth in California Nurseries, a useful resource for nursery workers.
The field guide was created by Steven Tjosvold, Neal Murray, University of California Cooperative Extension; Marc Epstein, Obediah Sage, California Department of Food and Agriculture; and Todd Gilligan, Colorado State University with the Statewide Integrated Pest Management Program (UC IPM).
An exotic and invasive pest from Australia, light brown apple moth has a host range of more than two thousand plants. It is a pest to a wide range of ornamental and agricultural crops, including caneberries, strawberries, citrus, stone fruit, apples, and grapes. The caterpillars eat leaves and buds, leading to weak or disfigured plants. They also can feed directly on fruit, causing the fruit to be unmarketable.
For more information on light brown apple moth and other leafrollers found in nurseries, see the UC Pest Management Guidelines for Floriculture and Nurseries.
Adult light brown apple moth.
Juvenile stage of the light brown apple moth.
UC Berkeley professor Nick Mills will head to UC Davis on Wednesday, Feb. 20 to speak on just that: "The Light Brown Apple Moth--Not a Typical Invader."
The seminar, hosted by the UC Davis Department of Entomology, is set from 12:10 to 1 p.m. in Room 1022 of the Life Sciences Addition, corner of Hutchison and Kleiber Hall drives.
Mills, with the UC Berkeley Department of Environmental Science, Policy and Management, says "exotic insect pests typically become invasive by building populations and spreading through a new geographic region in the absence of constraints from co-evolved natural enemies. While it is well known that environments can differ substantially in their resistance to invasions of alien species little is known of the factors responsible for this variation."
The light brown apple moth, aka LBAM, has caused quite a stir since its detection in California in 2006. That's when emeritus professor Jerry Powell of UC Berkeley discovered the invader in his back yard in Berkeley.
As a leafrolling caterpillar, LBAM loves just about everything from A to Z: apple, apricot, beans, caneberries (blackberry, blueberry, boysenberry, raspberry), cabbage, camellia, chrysanthemum, citrus, clover, cole crops, eucalyptus, jasmine, kiwifruit, peach, pear, persimmon, plantain, pumpkin, strawberry, tomato, rose and zea mays (corn).
Mills says that since its discovery in California, LBAM "has accumulated a rich set of resident parasitoid species comparable to that seen in its native Australia. However, in contrast to the low levels of parasitism that invasive hosts typically experience from resident parasitoids, parasitism levels for light brown apple moth are very high."
He will discuss, among other things, "the importance of resident parasitoids as barriers to the invasions of light brown apple moth in California."
Plans are to record the seminar for later posting on UCTV. Hosting the seminar is entomologist Mary Louise Flint of the Department of Entomology/UC Statewide Integrated Pest Management Program.
Female light brown apple moth, Epiphyas postvittana. (Photo courtesy of David Williams, principal scientist, Perennial Horticulture, Department of Primary Industries, Victoria, Australia.)
Male light brown apple moth, Epiphyas postvittana. (Photo courtesy of David Williams, principal scientist, Perennial Horticulture, Department of Primary Industries, Victoria, Australia.)
James R. Carey is used to dissent.
The entomology professor at the University of California, Davis, fervently believes that the Mediterranean fruit fly and light brown apple moth, two exotic and invasive pests, have long been established in California and cannot be eradicated.
Trying to eradicate them, he says, is like "throwing money down a rathole."
Check out the current (Jan. 8th) edition of Science Magazine and read the three-page NewsFocus piece headlined "From Medfly to Moth: Raising a Buzz of Dissent."
This is sure to garner a plethora of comments, concern and criticism. This is about as high-profile as it gets in the scientific community. And this is not the message that the California Department of Food and Agriculture (CDFA) is trying to get across. (See CDFA's Web site on the light brown apple moth).
Carey, a Fellow of the American Association for the Advancement of Science, just completed a term as the chair of the UC Systemwide Academic Senate University Committee on Research Policy. He also directs a federally funded program on lifespan and aging; the program just received a $3.4 million grant renewal from the National Institute on Aging.
"James Carey is at it again," began writer Ingfei Chen of Santa Cruz. "In the early 1990s, as a scientific adviser in California's unpopular pesticide-spraying war against the Mediterranean fruit fly, the entomologist vocally charged that the state's program was fundamentally flawed. Bucking conventional wisdom, Carey claimed that the Medfly was already established, defying the eradication attempt."
Fast forward to February 2007 and the discovery in California (Bay Area) of a new invasive pest, the light brown apple moth, a native of Australia.
Aerial spraying of a pheromone resulted in a "red-hot-public ruckus, forcing the state to shift to a plan to release zillions of sterile moths...And once again, Carey has surfaced as a relentless voice of dissent," Chen wrote.
Carey insists it can't be eradicated, that it's here to stay and we ought to focus on pest management, not eradication.
What's next? Michael Parrella, professor and chair of the Department of Entomology wants to organize a spring conference "to reexamine the invasive species-policy paradigm from to bottom," Chen wrote.
"The goal," she wrote, "is an open dialogue with major stakeholders," including the U.S. Department of Agriculture and CDFA.
Carey told us today that Parrella plans to meet with him and a group of other entomologists next week to discuss the proposed workshop.
"It would be nice to think we could sit down and discuss things," Parrella told Chen in the Science Magazine article. "It's not us versus them."
Light Brown Apple Moth
Remember the ravenous light brown apple moth (LBAM) and all the controversy?
The invasive agricultural pest, from Down Under, soars high on the agenda at the Northern California Entomology Society’s meeting on Thursday, Nov. 5 in Concord. Also on the agenda: honey bee regulatory research.
The meeting, open to the public, will be held from 9:15 to 2:30 p.m. in the Contra Costa Mosquito and Vector Control District office, 155 Mason Circle, Concord.
Extension Apiculturist Eric Mussen of the UC Davis Department of Entomology faculty and secretary-treasurer of the society, said attendance at the meeting is free. The only fee is the $15 catered lunch.
In addition to LBAM and other exotic invasive pests, the meeting will include a talk on “Honey Bee Regulatory Research” by Mike Beevers of California Agriculture Research, Fresno.
“Mike is involved with research on the effects of pesticides on honey bees,” Mussen said. "Consideration of honey bees always has been important, but colony collapse disorder (CCD) has brought extreme attention to the possible consequences of bees becoming contaminated with insecticide residues, especially the ‘sublethal effects.’”
The meeting begins at 9:15 a.m. with registration and coffee.
9:30 a.m.: “Biological Control Agents for Light Brown Apple Moth,” Nick Mills of UC Berkeley
10:15 a.m.: “New Exotic Pests and Invasives of Regulatory Significance in California,” Kevin Hoffman, Plant Diagnostic Center, California Department of Food and Agriculture (CDFA)
11 a.m. “Responding to New California State Pests: Control Programs and Pesticide Products,” by Duane Schnabel, CDFA Pest Detection and Emergency Projects
11:45 a.m.: Annual business meeting, with election of new president
12 Noon: Catered lunch by Kinder’s Custom Meats ($15 per person, reservations required with Eric Mussen)
1:15: “Update on Light Brown Apple Moth Eradication Program,” by Laura Irons of CDFA’s Light Brown Apple Moth Program
2 p.m.: “Honey Bee Regulatory Research” by Mike Beevers, California Agriculture, Fresno
Those planning to attend should contact Mussen at (530) 752-0472 or e-mail him at firstname.lastname@example.org. For those needing continuing education hours in Laws and Regulations, California Department of Pesticide Regulation, this meeting will satisfy three hours, he said.
The Nor Cal society membership is comprised of university faculty, researchers, pest abatement professionals, students and other interested persons. Susan Sawyer of the Pest Detection/Emergency Projects, CDFA, has served as president for the last two years.
The society meets the first Thursday in February; the first Thursday in May and the first Thursday in November. Membership dues are $10 year.
Male Light Brown Apple Moth
Female Light Brown Apple Moth
Most entomologists I know maintain a keen sense of humor.
They have to, or the insects (or the people concerned about them) will drive them buggy!
At the Northern California Entomology Society meeting in
He talked about the release of several parasitoids, including Trichogramma sp., an egg parasitoid; Meteorus trachynotus, a larval parasitoid; and Enytus eureka, a larval parasitoid.
These are the critters that can kill the light brown apple moth. The pest, known as LBAM or the "eat-everything moth," loves the Califonria climate.
Roltsch talked about biocontrol test sites in the
Roltsch, a CDFA senior environmental research scientist who received his doctorate in entomology from
And now LBAM.
LBAM lays about 60 eggs at a time, sometimes up to 100. It’s a native of
Its hosts include crops (grape vines, pome, stone fruit and citrus), shrubs (coral pea, tea tree, broom and Asteracae, the sunflower family) and weeds (capeweed, plantain and dock).
Roltsch talked about how much LBAM loves the Australian tea tree (Leptospermum laevigatium); manzanita, bottle brush, and other plants.
But wait, he didn't say anything about my favorite plant, the New Zealand tea tree, Leptospermum scoparium keatleyi. A sea captain named Edward John "Ted" Keatley (probably one of my relatives) discovered the cultivar in the early 1900s in
I'm sure LBAM loves that plant, too, just as it loves everything else. It's not a picky eater.
During the question and answer period, a Contra Costa County resident asked Roltsch: “How did LBAM know to settle in three counties that do not allow aerial spraying:
That question drew one of the biggest laughs of the day.
Ol' LBAM is a clever cuss. It not only eats everything but it's trained in survival skills.
I do know this: Capt. Keatley had nothing to do with transporting LBAM here.