Clean Sweep: Informed Trading through Intermarket Sweep Orders
More Sweep Net Photos. Insect Storage & Transport Container with holes, label Add food & surfaces ...
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Transcript of More Sweep Net Photos. Insect Storage & Transport Container with holes, label Add food & surfaces ...
Insect Storage & Transport Container with holes, label
Add food & surfaces
Keep shaded!! Keep Cool!!
Cooler, packing, ice packs
Store in refrigerator
Transport in coolers
Separate Cool in refer to slow
Hand pick
Aspirator = “bug sucker”
Accelerator
Larinus minutus knapweed seed head weevil
Accelerator-Sweep net through flea beetle infestation. -place nettings in screen. –flea beetles fit through screen.
-flea beetles fall through funnel into jar. –release fairly well cleaned up.
-measure flea beetle #’s by volume.
Insect Economy Defoliators
Seed Head Feeders
Leaf Galls
Stem Galls
Stem Borers
Root Borers
Root Feeders
Other: fungi, nematodes, bacteria, etc..
Specific Insect How To Cyphocleonus achates – knapweed root boring weevil
Agapeta zoegana – knapweed root boring moth
Larinus minutus – knapweed seed head weevil
Aphthona spp. – leafy spurge flea beetles
Oberea erythrocephala – leafy spurge root boring beetle
Mecinus janthinus – toadflax stem boring weevil.
Bio-agent Collection Cyphocleonus: hand pick, sweep net
Agapeta: hand pick, sweep net, vac
Larinus: sweep net + asperator or pump
Aphthona: sweep net + accelerator
Oberea: sweep net + hand pick from net.
Cyphocleonus achates – Root Boring Weevil
Adults emerge Aug./Sept. Lay eggs on root crown Larvae bore into root Over winter as larvae in
root Feeding in taproot and
exit hole cause damage Pupate in early summer Emerge and do it all
again Do not fly 2000-29,000+/yr..
Agapeta zoegana - root boring moth
Biology: Adults emerge spring/summer
Lay eggs on lower stem
Larvae hatch, mine down stem into the root
Larvae over winter in root
Pupate in soil early/late spring
Larvae can move a short distance through soil to a new plant if theirs dies
Adults disperse by flying
Collected 2,950 in 2007!
Larinus minutus Biology:• Over winters as adult weevil!
• Adults gather at knapweed plants when flower buds appear
• Females lay one egg per flower
• Larvae soon hatch and consume seeds (that is a good thing!!)
• Pupate in destroyed flower
• Emerge as adult in late summer
• Fly away and over winter
• Strong flier, readily disperses
• Great one-two punch with root borers!!
Aphthona – leafy spurge flea beetles Adults emerge from soil early/mid summer
Release pheromone, stay together
Adults feed on spurge leaves, high #’s can damage plants
Scatter eggs on soil around spurge plants
Larvae soon hatch, feed on root hairs
Major effect: larval root feeding
Larvae feed all fall, winter & spring
Pupate in soil in late spring
Becoming very successful bio-agent!
Can hop & fly, we need to disperse them…