Study Suggests Closer-Proximity Lures Help Increase Insect Pest Catches

Christopher Adams, Ph.D., postdoctoral researcher in entomology at Michigan State University, checks a line of five pheromone traps for codling moth in an orchard. Adams and colleagues have found that placing five traps in a line and averaging the catch number from them produces a more reliable sampling of pest abundance, less prone to variability and false positives or false negatives, than a single trap placed on its own. (Photo: Christopher Adams, Ph.D.)

For the past decade, researchers led by James Miller, Ph.D., at Michigan State University (MSU) have been refining our understanding of how insects move and interact with pheromone traps. In particular, they’ve studied the codling moth (Cydia pomonella), a global pest of apple and pear orchards, and found the standard pheromone traps for the pest emit plumes of no more than 17 feet.

“Rather than envisioning a codling moth pheromone trap functioning as a vacuum cleaner sucking up males from great distances,” Miller says, “we deduced that it had very weak ‘suction’ and that the males were doing most of the work in moving around randomly until arriving at that weak suction.”

The problem, then, with a pest that staggers about and a trap that is not broadly attractive is variability: one trap in a field might catch zero moths, or it might catch 30. And when a pesticide application for codling moth could cost $1,000 for a 50-acre plot, that kind of randomness makes for a potentially costly lack of reliability in predicting the actual abundance of a pest.

Placing more pheromone traps at multiple locations throughout an orchard to get a more representative sampling, however, has been an unattractive option for pest managers for the simple added time cost of visiting multiple trap locations throughout the season. But, a new approach that Miller and colleagues have tested effectively addresses that problem: lining up multiple traps in very close proximity to each other.

In an experiment reported in the Journal of Economic Entomology, a team led by MSU postdoctoral researcher Christopher Adams, Ph.D., shows that five codling moth pheromone traps placed in a line, each about 13 feet apart, produce catch numbers — when averaged across all five traps per line — that are much less variable than single traps at their own location, says EntomologyToday.

In their report, Adams and co-authors write that they were inspired by long-line fishing: “In pondering this problem, we were struck by its parallels to the challenge fishermen face in needing to deploy multiple baited hooks across fish habitat while minimizing travel and service time per hook. A favored solution to this optimization problem in fishing is long-line fishing, where multiple baited hooks descend from short snood lines at increments from a tow-line. This configuration dramatically raises the probability of catch by summing the reaches of plumes emanating from all bait point-sources.”

 

 

Topics: ,

Leave a Reply

2 comments on “Study Suggests Closer-Proximity Lures Help Increase Insect Pest Catches

Crop Protection Stories
Citrus
July 23, 2017
USDA Invests $7.6 Million toward Beneficial Insect Research
Projects to promote beneficial organisms as part of a pest control strategy. Read More
Fruits
July 14, 2017
Brown Marmorated Stink Bug Predator Egg Mass Found
Samuri wasp parasitized egg mass found in Southern New Jersey peach orchard. Read More
Beet-armyworms-on-a-tomato-plant
Citrus
July 12, 2017
Tomato Pests Can Be Induced to Cannibalism, New Study Shows
The University of Wisconsin's John Orrock says when beet armyworms are exposed to concentrations of methyl jasmonate, they will abandon eating tomatoes — and start eating one another. Read More
Citrus
July 12, 2017
USDA Pulls 8 Products from Approved Organic Production List
After a few months of speculation, the USDA's Agricultural Marketing Service has published its Sunset 2017 final rule on approved products for organic production and handling. Read More
darkwinged fungus gnat larvae
Fruits
July 12, 2017
How to Deal with Annoying Fungus Gnats on the Farm
Learn how to identify, the survival and spread, as well as management methods for this insect pest. Read More
Close-up of mature diamondback moth
Insect Control
July 7, 2017
Can Genetic Engineering Put an End to Diamondback Moth Plague?
USDA OKs field release of pest with self-limiting gene at Cornell research farm. Read More
Center pivot irrigation system at Florida research farm
Citrus
June 30, 2017
New Project to Promote Water Security for Florida and Georgia Farmers
With the help of five-year, $5 million USDA grant, stakeholders will learn what it takes to better preserve precious resource. Read More
Crop Protection
June 25, 2017
Study Suggests Closer-Proximity Lures Help Increase Insect Pest Catches
Research shows single-trap locations are not as effective as those kept close together. Read More
Mobile technology farming
Citrus
June 22, 2017
Technology Boom Boosting Farm Life to a New Level [Opinion]
Whether it is human genetics or genetics applied to plants, knowledge is growing at a dizzying pace. Read More
Crop Protection
June 21, 2017
Certis Bolsters Biopesticide Business Portfolio with Acquisition
Addition of LAM International to allow for expansion of product development. Read More
Crop Protection
June 21, 2017
Early-Season Scouting Tips for Sweet Corn Growers
Black cutworm and true armyworm have been caught in relatively high numbers across the Midwest, including Michigan. Learn more about determining risk and scouting in your sweet corn plantings. Read More
Cucurbit leaf crumple virus
Cucurbits
June 20, 2017
Take Caution to Curb Cucurbit Leaf Crumple Virus
Learn how to identify, the survival and spread, as well as management methods for this disease. Read More
Purple nutsedge on tomato plants
Fruits
June 16, 2017
Florida Farmers Fighting to Find Their Way out of the Weeds
For growers in the Sunshine State, the battle with pesky plants out of place never ends. Read More
Illustration of CRISPR-Cas9
Citrus
June 15, 2017
Make Way for Life-Saving Science on Your Farm [opinion]
While nature always finds a way to adapt, science continues to find other ways to cope. Read More
Crop Protection
June 12, 2017
Registration Open for Ag Innovations Conference
Event focuses on microbial control strategies. Read More
The Latest
Crop Protection
July 25, 2017
Vegetable Field Scouting Guide: Diamondb…
Due diligence is needed to help take down this pest of biblical proportions. Read More
Citrus
July 23, 2017
USDA Invests $7.6 Million toward Benefic…
Projects to promote beneficial organisms as part of a pest control strategy. Read More
Citrus
July 12, 2017
Tomato Pests Can Be Induced to Cannibali…
The University of Wisconsin's John Orrock says when beet armyworms are exposed to concentrations of methyl jasmonate, they will abandon eating tomatoes — and start eating one another. Read More
Citrus
July 12, 2017
USDA Pulls 8 Products from Approved Orga…
After a few months of speculation, the USDA's Agricultural Marketing Service has published its Sunset 2017 final rule on approved products for organic production and handling. Read More
Crop Protection
June 25, 2017
Study Suggests Closer-Proximity Lures He…
Research shows single-trap locations are not as effective as those kept close together. Read More
Citrus
June 22, 2017
Technology Boom Boosting Farm Life to a …
Whether it is human genetics or genetics applied to plants, knowledge is growing at a dizzying pace. Read More
Crop Protection
June 21, 2017
Certis Bolsters Biopesticide Business Po…
Addition of LAM International to allow for expansion of product development. Read More
Crop Protection
June 21, 2017
Early-Season Scouting Tips for Sweet Cor…
Black cutworm and true armyworm have been caught in relatively high numbers across the Midwest, including Michigan. Learn more about determining risk and scouting in your sweet corn plantings. Read More
Citrus
June 15, 2017
Make Way for Life-Saving Science on Your…
While nature always finds a way to adapt, science continues to find other ways to cope. Read More
Crop Protection
June 12, 2017
Registration Open for Ag Innovations Con…
Event focuses on microbial control strategies. Read More
Crop Protection
June 7, 2017
Field Scouting Guide for Squash Powdery …
Learn how to spot and treat a pest that impacts all cucurbits. Read More
Crop Protection
June 1, 2017
Can Attract-and-Kill Technology Protect …
Since devastating many Mid-Atlantic farms in 2010, this Asian-borne pest continues to cause growers significant headaches. New research, however, may offer insights into treatment options that minimize the use of harsh chemicals. Read More
Crop Protection
May 23, 2017
Valent Grants Organic Farming Scholarshi…
University of Florida Doctor of Plant Medicine student receives $1,500 toward the development of training materials. Read More
Berries
May 15, 2017
Grower Comments on Pyrethroids Being Sou…
Comment period on popular class of insecticides opens today. Read More
Crop Protection
May 14, 2017
Springtail Is an Unexpected Vegetable Pe…
One springtail species is targeting germinating seeds, impacting seedling growth. Read More
Citrus
May 9, 2017
Barn Owls Can be an Effective Control fo…
The predators are already getting results in vineyards and orchards. Research is showing they’re just as effective in vegetable and fruit fields. Read More
Crop Protection
April 30, 2017
BASF Adds Pest, Crop, Weather Modeling t…
ZedX’s agronomic models help farmers make better production decisions. Read More
Crop Protection
April 29, 2017
BioSafe Systems Introduces Broad-Spectru…
Alternative to potassium bicarbonate and lime sulfur for tree and vine crops. Read More