Some fundamentals first:
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- Dustin Snow
- 5 years ago
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Transcription
1 Indoor Ants
2 Some fundamentals first: Metamorphosis pattern Castes Winged vs. non-winged forms Size variations The pedicel (one lump - or two?)
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4 Citronella ants tending larvae
5 Ant larvae and pupae (within cocoons) tended by workers
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9 Field ant workers
10 Field Ants Winged Reproductive Forms Top: Male Bottom: Female
11 Carpenter ant worker
12 Winged males and females Winged males and females
13 In abrupt episodes, workers push the winged stages from the colony After the nuptial flight the males die and the females each try to establish a new colony
14 Carpenter ant queen without wings (dealate)
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16 Red imported fire ant a polymorphic species
17 Pavement ant a monomorphic species
18 Ants and honeydew
19 Honeydew production
20 Honeydew Producing Insects* Aphids Soft scales Leafhoppers Whiteflies Mealybugs *All suck sap from the phloem
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22 Ants that May Occur in a Building Field ants (Formica spp.) Carpenter ants (Camponotus spp.) Odorous house ant (Tapinema sessile) Pavement ant (Tetramorium caespitum) Pharaoh ant (Monomorium pharaonis)
23 Field Ants Formica spp. A common group of ants outdoors A temporary ant found in homes in early spring
24 Thorax noticeably indented
25 One hump (node) on pedicel
26 Field ants aka thatcher ants
27 Field ants collecting sugary secretion from peony buds Field ants collecting aphid honeydew
28 Harbingers of Spring Robin (left); Field ants temporarily forage in homes (below)
29 Carpenter ants
30 Thorax smoothly humped (no indentation)
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32 One hump (node) on pedicel
33 Carpenter ant tunneling
34 Expelled sawdust at colony openings
35 Debris expelled from carpenter ant nest
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37 Carpenter Ants Nest in wood Produce clean, debris-free galleries May produce satellite colonies in structures Feed heavily on honeydew Live, dead insects are other common foods Are primarily night active
38 Odorous house ant
39 Odorous house ant Medium sized (1/8-1/10 inch/ mm) Monomorphic One node on pedicel, but flattened and concealed
40 Odorous house ants heavily utilize honeydew
41 Mulches provide favorable nest sites for odorous house ants
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43 Myrmicine Ants Possess stinger Pedicel is two-humped (two nodes) Examples Pavement ant Pharaoh ant Fire ants Harvester ants
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45 Pavement ant a monomorphic species
46 Two humps (nodes) on pedicel
47 Grooves on head
48 Nests are shallow and usually under rocks, pavement or similar cover
49 Flickers feed heavily on pavement ants
50 Swarms of worker pavement ants a raid in progress!
51 Pavement ant raids are common
52 Sweets, oils, and protein-rich foods may alternately be favored by pavement ants
53 Pharaoh ant the tiniest household ant
54 Notes on Pharaoh Ants Smallest indoor ant (less than 1 mm) Produce numerous queens New colonies readily form by budding Environmental disruptions cause colonies to disperse, bud Primarily visit oily materials Photo by Apex Bait
55 Control of Ants in the Home Eliminate food resources Eliminate water resources Bait to reduce colony size Seal/caulk entry points Sprays?
56 Eliminate Sources of Water
57 Eliminate Alternate Sources of Food
58 Baiting for Ants
59 Fundamentals of Ant Baiting Match bait to feeding habits of target ant species Use slow-acting toxicant Remove alternate food sources Place bait near foragers Maintain bait quality Replenish baits as needed
60 Fundamentals of Ant Baiting Match bait to feeding habits of target ant species Use slow-acting toxicant Remove alternate food sources Place bait near foragers Maintain bait quality Replenish baits as needed
61 Other Food Preferences Oily materials Pharaoh ant Pavement ant (often) Sweet materials Field ant Carpenter ants Odorous house ants Pavement ants (sometimes)
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64 Fundamentals of Ant Baiting Match bait to feeding habits of target ant species Use slow-acting toxicant Boric acid Hydramethylnon Indoxcarb Fipronil Remove alternate food sources Place bait near foragers Maintain bait quality Replenish baits as needed
65 Borax or Boric Acid based baits
66 Borates used for wood protection Boric acid used for ant and cockroach control Primary uses of boron based insecticides
67 Hydramethylnon an insect growth regulator type of insecticide
68 A hydramethylon product used on ants outdoors
69 Fipronil
70 Carpenter Ant Baits Special baits are designed for these type of ants Must be liquid or moist gel Sugar based
71 Fundamentals of Ant Baiting Match bait to feeding habits of target ant species Use slow-acting toxicant Remove alternate food sources Place bait near foragers Maintain bait quality Replenish baits as needed
72 Boric acid can be used as a tracking powder Boric acid is picked up and returned to the colony similar effects of baiting.
73 Effectiveness of sprays indoors for ant control?
74 Eliminate entry points used by ants
75 Use multiple approaches to eliminate ants from a home
76 Control of Ants in the Home Eliminate food resources Eliminate water resources Bait to reduce colony size Seal/caulk entry points Sprays?