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Channel: Ornamentals Diagnostics » 2013
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Insect Hotline Issue 4

Above picture is of a later instar of the eastern tent caterpillar.  Photo was provided by author imbedded with picture via insect images.org Photo above is a picture of an early tent formed by...

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Insect Hotline Issue 5

Close-up of boxwood leafminer larvae after boxwood leaf is broken open.  Photo provided by: Nancy Gregory, University of Delaware Blistered boxwood leaf and boxwood leafminers.  Photo provided by:...

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Insect Hotline Issue 6

  Spruce spider mite damage from a distance.  Photo by Brian Kunkel, University of Delaware             Close-up of spruce spider mite damage.  Photo by Brian Kunkel, University of Delaware...

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Insect Hotline Issue 7

A picture of a carpenter bee feeding.  Photo provided by: Karan A. Rawlins, University of Georgia, Bugwood.org Galleries and tunnel made by female carpenter bee.  Photo provided by: USDA Forest...

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Insect Hotline Issue 8

Heavy infestation of pine needle scale.  Photo provided by: James B. Hanson, USDA Forest Service, bugwood.org Scale infestations start with small populations so scouting and monitoring is crucial....

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Insect Hotline Issue 9

Imported willow leaf beetle damage and adults.  Photo provided by:  David Cappaert, Michigan State University, Bugwood.org Damage caused by imported willow leaf beetle feeding.  Photo provided by:...

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Issue 10: Hot in May

Aphids are feeding and reproducing on many plants at this time of the year.  The picture is of aphids feeding on tulip popular.  Honeydew falling onto furniture, structures, vehicles, other plants and...

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Insect Hotline Issue 10

Honeylocust plant bug adult.  Photo provided by:  John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org Honeylocust plant bug damage.  Photo provided by:  Whitney...

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Insect Hotline Issue 11

Close-up of roseslug sawfly larva. Roseslug sawfly damage called ‘window-paning’.  The leaf epidermis becomes ‘frosted’ as leaf dries out from feeding on underside of leaf. ‘Window-paning’ damage on...

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Insect Hotline Issue 12

Bagworms in the “dunce cap” stage.  B. t. and Conserve provide good control at this stage. Bagworm infestation with bags already drooping down. Damage from bagworm feeding (Photo by: T. Simms). Bag...

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Insect Hotline Issue 13

  Oak lecanium scales (females).   Close-up of Fletcher scale and eggs.       Group of Fletcher scale on bald cypress.  All photos provided by:  Brian Kunkel, Ornamental IPM Extension Specialist,...

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Insect Hotline Issue 14

  Indian wax scale removed from stem.  Red coloration is the female insect.     Wax scales on holly branch.  Photos provided by Brian Kunkel, Ornamentals IPM Extension Specialist, University of Delaware

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Insect Hotline Issue 15

Pupal skin sticking out of the trunk of a tree.  Insect has emerged from the pupal skin which is left in the tree.  Photo provided by Whitney Cranshaw, Colorado State University, bugwood.org     Adult...

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Insect Hotline Issue 16

  Masked chafer white grub (notice lack of pattern of the spines) Japanese beetle white grub (notice the v-shaped pattern to the spines) Oriental beetle white grub (notice the parallel lines of...

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Insect Hotline Issue 24

Acer with die-back caused by Japanese maple scale infestations. Close-up of an Acer branch with gloomy scale (dark circular raised) and Japanese maple scale (brownish is the underlying skin after waxy...

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Insect Hotline Issue 17

Hibiscus sawfly adult.  Photo provided by:  Rose Hiskes, Diagnostician, Horticulturist at The Connecticut Agricultural Experiment Station   Cocoons (pupae) of hibiscus sawflies.  Photo provided by:...

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