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Impact of Imported Fire Ants on Mississippi Soils


Figure 7
Figure 7. Tracings of horizontal cross-sections of imported fire ant mounds on: (1) sandy loan (Site B); (2) silt loam (Site A); and (3) clay (Site C). Channels and peripheral void space are darkened.


Figure 8
Figure 8. Tracings of vertical cross-sections of imported fire ant mounds on: (1) clay (Site C); (2) silt loam (Site A); and (3) sandy loam (Site B). Channels and peripheral void space are darkened.


Figure 9
Figure 9. A decpiction of mound construction as described by McCook (1877) and as hypothesized for imported fire ants.


Figure 10
Figure 10. Photomicrograph of the crust of a mound on a silt loam soil (site A) magnified 14X showing porous structure.


Figure 11
Figure 11. Photomicrograph of wall structure in a mound on a sandy loam soil (Site B) magnified 30X showing detail of coherent wall lining.


Figure 12
Figure 12. Photomicrograph of the wall structure in a mound on a clay soil (Site C) magnified 30X showing coherence of lining and absence of pellet-based matrix structure.

For more information about Technical Bulletin 223 -- Impact of Imported Fire Ants on Mississippi Soils contact:
Dr. David E. Pettry
Phone: (662) 325-2770
Email: David E. Pettry

To contact the Experiment Station:
MAFES Director's Office
Box 9740
Mississippi State, MS 39762
Phone: 662/325-3005
Fax: 662/325-3001
E-mail: MAFES

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