Friday, October 31, 2008
Friday, October 24, 2008
Weed Hotline Issue 26
Ground ivy. Photo provided by: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org.
Canada thistle. Photo provided by: John M. Randall, The Nature Conservancy, Bugwood.org.
Close-up of Canada thistle leaves. Photo by: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org.
Dandelion. Photo provided by: Howard F. Schwartz, Colorado State University, Bugwood.org.
Dandelion seedlings. Photo provided by: Joseph M. DiTomaso, University of California - Davis, Bugwood.org.
Clover. Photo provided by: Howard F. Schwartz, Colorado State University, Bugwood.org.
Friday, October 3, 2008
What's Hot HL Issue 25
Leaf footed bugs (left) and stink bugs (right). Picture provided by: John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org.
Field cricket. Photo provided by: Edward L. Manigault, Clemson University Donated Collection, Bugwood.org.
Boxelder bug immatures and adults. Photo provided by: William M. Ciesla, Forest Health Management International, Bugwood.org.
Boxelder bug adult. Photo provided by: William M. Ciesla, Forest Health Management International, Bugwood.org.
Leaf-footed bug, one hind leg is missing. The existing hind leg has the typical leaf-like projections. Photo provided by: Dan Clark, USDI National Park Service, Bugwood.org.
Weed Hotline Issue 25
Ground ivy. Photo provided by: Richard Old, XID Services, Inc., Bugwood.org.
Ground ivy, notice rooting at the nodes. Photo provided by: Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org.
Ground Ivy seeds. Photo provided by: Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org.
Disease Hotline Issue 25
Dog stinkhorn. Photo provided by: Teresa Mardis, Bugwood.org.
Tar spot on maple. Photo provided by: Steven Katovich, USDA Forest Service, Bugwood.org.
Tar spot on maple. Photo provided by: Andrej Kunca, National Forest Centre - Slovakia, Bugwood.org.
Insect Hotline Issue 25
White prunicola scale on holly.
White prunicola scale on lilac.
White prunicola scale on holly. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.
Tuesday, September 30, 2008
Thursday, September 18, 2008
Insect Hotline Issue 24
Western conifer seed bug nymphs. Photo provided by: Sandy Kegley, USDA Forest Service, Bugwood.org.
Western conifer seed bug adult. Photo provided by: Whitney Cranshaw, Colorado State University, Bugwood.org.
Two different color pattern morphs of Multicolored Asian lady beetle. Photo provided by: Louis Tedders, USDA Agricultural Research Service, Bugwood.org.
Multicolored Asian lady beetle eggs. Photo provided by: Clemson University - USDA Cooperative Extension Slide Series, , Bugwood.org.
Multicolored Asian lady beetle larva. Photo provided by: Joseph Berger, Bugwood.org.
Multicolored Asian lady beetle pupa. Photo provided by: Cheryl Moorehead, individual, Bugwood.org.
Monday, September 15, 2008
What's Hot HL Issue 23
Cercospora leafspot on rose. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware
Pyracantha scab on fruits. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware
Puss caterpillar. Photo by: Gerald J. Lenhard, , Bugwood.org
Puss caterpillar. Photo by: Lacy L. Hyche, Auburn University, Bugwood.org
Plumbago foliar nematode. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware
Disease Hotline Issue 23
Cercospora on Sourwood. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware
Oak anthracnose from a distance. Photo by: Joseph O'Brien, USDA Forest Service, Bugwood.org
Oak anthracnose. Photo by: Robert L. Anderson, USDA Forest Service, Bugwood.org
Insect Hotline Issue 23
Southern Red Mite eggs. Notice the hair coming off the egg. Photo by: Jim Baker, North Carolina State University, Bugwood.org
Damage caused by Southern Red mite. Photo by:Frank A. Hale, University of Tennessee, Bugwood.org
Southern Red Mite adult, nymph, and eggs. Photo by: Jim Baker, North Carolina State University, Bugwood.org
Spruce spider mite damage on older needles of Douglas fir. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware
Spruce spider mite adult. Photo by: Photo by USDA Forest Service - Northeastern Area Archive, USDA Forest Service
Spruce spider mite eggs. Photo by: Photo by USDA Forest Service Archive, USDA Forest Service