Pheromones: chemical scent signals

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Pheromones chemical scent signals
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Aphthona Photos
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Aphthona Collection
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Leafy spurge flea beetle collection
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Leafy spurge flea beetle collection
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Flea Beetle Bomb Shell Effect
-flea beetles release attractant pheromone

• -stay together and spread outwards from initial
  release site causing larger area of damage each
  year.

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Before And After Photos
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Oberea spurge root boring beetle

• adults late May July
• rapidly disperse by flying
• lay eggs on large spurge stems
• larvae bore down stem to root
• over winter in root as larvae
• pupate early spring
• nice combo w/ flea beetles
• sweep net
• hand pick from net.

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Oberea Collections
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Mecinus janthinus toadflax stem boring weevil
-Too new, not available from us yet -ask County
and/or purchase.
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Release Site Location

• Use newspaper articles,phone calls and word of
  mouth to find suitable sites
• Have list of potential release sites and
  landowners
• Weed present
• Must fit the insects ecological needs
• Must fit land owners needs
• Fit w/in spacing of your plan
• Guaranteed undisturbed for 5, preferably 10
  years
• Contiguous to other weed patches so bioagent can
  spread
• Easy to access for monitoring and future
  collections
• Will not flood.

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Store and Transport

• Store insects in refrigerator or cooler with ice
  pack. KEEP FROM FREEZING!
• Transport in cooler with ice pack separated from
  insect container by paper/packing material
• Moths last 1-3 days
• Beetles tougher! last 3-7 days.