BREAKING NEWS…ELM SEED BUG ALERT

Organics Admin
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Organics Admin

COO at Aladay LLC
Organic Farmer, Property Preservation Specialist and Custom Glass & Wood Worker. Blogger extraordinaire...
Organics Admin
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Elm Seed Bug Pest Alert Plant Industry

Nursery and Landscape Industry,

A new pest has been found in Nevada : The elm seed bug (Arocatus melanocephalus) was found for the first time in northern Nevada this summer. The insect was first found in Idaho in 2009 and is expected to eventually spread throughout most of the warmer regions of the western U.S. Aptly named, it feeds on the seeds of elm trees in the genus Ulmus. Please see attached flyer for additional details. Suspect insects may be submitted to State Entomologist Jeff Knight at any office of the Nevada Department of Agriculture for confirmation.

NEW PEST FOUND IN NEVADA: ELM SEED BUG

The elm seed bug (Arocatus melanocephalus) was found for the first time in northern Nevada this summer. The insect was first found in Idaho in 2009 and is expected to eventually spread. throughout most of the warmer regions of the western U.S.  Aptly named, it feeds on the seeds of elm trees in the genus Ulmus. It is unknown at this time if it will survive on Zelkova, a genus of
trees found in southern Nevada that is closely related to elms.

Identifying the elm seed bug

• four wings and sucking mouthparts
• approximately .25 inches long and a good flyer
• when at rest, wings form an ‘X’ on the back of the insect
with a prominent triangle between the tops of the wings
• black/brown to rust colored with light colored banding along the sides of the abdomen

When and where elm seed bug is found

• emerges from hibernation as temperatures warm up in late February to early April
• mates and lays eggs near or on developing elm seeds
• nymphs feed on elm seeds and go through several molts to adulthood
• feeds on the leaves of elm trees but won’t cause serious damage
• seeks out hibernation sites in July and August, which is when they may start entering
homes in large numbers and become a nuisance
• overwinters in cracks and crevices around windows, in siding and in other protected areas

Prevention

• caulk areas around windows and doors
• check weather stripping and replace if needed
• use a vacuum to physically remove bugs and place captured bugs in a sealed plastic bag (best method of control once they have entered a house)
• place sticky insect traps around windowsills
• collect and destroy any fallen elm seeds to reduce the food source
• inspect firewood before bringing it inside
• spray insecticide barriers around windows, doors and along foundations during July and August (foundation barriers should be three feet wide on the ground and up the foundation for another two to three feet)
• do not spray exterior landscapes for this insect as it may not be effective and could harm beneficial insects and pollinators

Contact
Suspect insects may be submitted to State Entomologist Jeff Knight at any office of the Nevada Department of Agriculture for confirmation.

Nevada Department of Agriculture

Nick Bieser
Agriculturist II | Plant Industry Division | Nevada Department of Agriculture
2300 E St Louis Ave, Las Vegas, NV 89104

Office: 702.668.4569 | Fax: 702.668.4567 | Mobile: 702.499.2141
Look for the Buy Nevada label and buy an agriculture license plate.

Don’t forget…support your local farmers markets.

 

 

Know your Farmer…Know you Food

 

 

 

 

Until Next Time….

Happy Gardening