<![CDATA[Image RSS Feed for Image Collection 274 - sixspined ips (Ips calligraphus) in Southern Plant Diagnostic Network - Selected Images only]]> http://www.ipmimages.org/collections/viewcollection.cfm?id=274 Origin

The six-spined ips, Ips calligraphus calligraphus, the largest of the southern Ips species is native to the Americas. Ips beetles usually attack weakened, dying, or recently felled trees and fresh logging debris.

Life Cycle

Ips c. calligraphus adults are about 0.2 in. (5 mm) long and have 6 spines on each side near the posterior. Their eggs are oblong, pearly white, and about 0.04 in. (1 mm) long by 0.02 in. (0.5 mm) wide. Egg galleries, usually three to five, radiate from a central mating chamber and run up and down, grooving both the bark and the wood. The life cycle may be completed in 25 days, with six or more generations per year. The grub-like larvae are small, whitish, and legless, with orange-brown heads up to 0.04 in. (1 mm) wide. The pupae are waxy white and similar to adults in size. The eastern six-spined engraver commonly infests thick-barked pines and usually attacks portions of trunks that are 4 in. (10 cm) or more in diameter. This is often one of the first bark beetles to attack drought-stricken trees.

Distribution

Ips c. calligraphus is primarily an eastern subspecies that occurs naturally from southern Canada to the Gulf of Mexico. A small population has apparently been introduced into California.

Control Efforts

Beetle-caused damage can be reduced through one or more prevention or suppression techniques. Other control methods are burning, chipping, debarking, or burying infested portions of trees. Burning should be restricted to periods of low fire danger, and Federal and State laws should be observed. Land managers may consult their nearest county, State, or Federal forestry personnel for recommendations on management practices to be followed in a particular stand or area.

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Fri, 29 Mar 2024 08:18:20 -0400 Fri, 29 Mar 2024 08:18:20 -0400 http://Images.bugwood.org/ <![CDATA[<p>Side view taken using an Auto-Montage digital microscopy system.<br />© 2002, 2003 by the University of Florida and may be freely used for educational purposes as long as credit is given to the University of Florida and, if space permits, the photographer. Any commercial use requires written permission of the Chairman, Department of Entomology and Nematology, University of Florida, Gainesville, Florida 32611-0620.</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2516021 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2516021 Side view taken using an Auto-Montage digital microscopy system.
© 2002, 2003 by the University of Florida and may be freely used for educational purposes as long as credit is given to the University of Florida and, if space permits, the photographer. Any commercial use requires written permission of the Chairman, Department of Entomology and Nematology, University of Florida, Gainesville, Florida 32611-0620.

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<![CDATA[<p>pitch tube with US dime for size comparison</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2721038 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2721038 pitch tube with US dime for size comparison

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<![CDATA[<p>sixspined ips (<em>Ips calligraphus</em>) galleries on loblolly pine (<em>Pinus taeda</em>)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=3225003 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=3225003 sixspined ips (Ips calligraphus) galleries on loblolly pine (Pinus taeda)

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<![CDATA[<p>exit hole and frass</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2721037 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2721037 exit hole and frass

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<![CDATA[<p>sixspined ips (<em>Ips calligraphus</em>) egg(s)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1540980 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1540980 sixspined ips (Ips calligraphus) egg(s)

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<![CDATA[<p>Galleries in ponderosa pine, Ashland, MT</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1254008 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1254008 Galleries in ponderosa pine, Ashland, MT

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<![CDATA[<p>sixspined ips (<em>Ips calligraphus</em>) adult(s) on (<em> </em>)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5432921 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5432921 sixspined ips (Ips calligraphus) adult(s) on ( )

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<![CDATA[<p>sixspined ips (<em>Ips calligraphus</em>) galleries</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1541742 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1541742 sixspined ips (Ips calligraphus) galleries

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<![CDATA[<p>sixspined ips (<em>Ips calligraphus</em>) adult(s)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1540987 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1540987 sixspined ips (Ips calligraphus) adult(s)

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<![CDATA[<p>Gallery pattern formed in the inner bark of a pine by the coarse writing engraver, Ips calligraphus.</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1546002 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1546002 Gallery pattern formed in the inner bark of a pine by the coarse writing engraver, Ips calligraphus.

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<![CDATA[<p>sixspined ips (<em>Ips calligraphus</em>) adult(s)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1541006 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=1541006 sixspined ips (Ips calligraphus) adult(s)

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<![CDATA[<p>notice adults and frass in galleries</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2721036 sixspined ips Ips calligraphus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=2721036 notice adults and frass in galleries

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