What's Hot HL 23

Aschocyta Blight on Lily-of-the-Valley

Photo by Bob Mulrooney, University of Delaware, Extension Plant Pathologist

Anthracnose on Walnut

Photo From an Online Guide to Plant Disease Control, Oregon State University Extension

Scoliid wasps are usually considered beneficial insects because they help control green June beetle and other grubs.

Photo from the University of Minnesota

Scoliid Wasps Searching and Feeding

Photos by Brian Kunkel, Extension Ornamental IPM Specialist, University of Delaware

Weed Hotline Issue 23

Japanese Stiltgrass Close Up

Japanese Stiltgrass Competing with Planted Ferns

Stand of Japanese Stiltgrass in Wooded Clearing

Japanese Stiltgrass Mowed Area Showing Regrowth

Japanese Stiltgrass Mowing Effects

All Pictures by Susan Barton, University of Delaware, Extension Ornamentals Specialist

Insect Hotline Issue 23

Japanese Beetle Grubs

Photo by John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

Asiatic Garden Beetle Grubs

Photo Credit John Obermeyer, Purdue Cooperative Extension Service

Phyllophaga species include May beetles, June beetles, and scarab beetles. These grubs have a multi-year life cycle.

Photo from Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org

Third instar oriental beetle with Tiphia vernalis (parasite) egg on ventral side

Photo by Mike Reding & Betsy Anderson, USDA ARS, Bugwood.org

Green June Beetle Grub

Photo from Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org

Northern Masked Chafer Grub

Photo by Mike Reding & Betsy Anderson, USDA ARS, Bugwood.org

Disease Hotline Issue 23

Botrytis Stem Canker

Botrytis on Geranium (Pelargonium)

Above 2 Photos from New England Greenhouse Update

Foliar Nematodes Magnified

Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Foliar Nematode Damage to Mums

Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Foliar Nematode on Anemone

Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Foliar Nematode on Butterfly Bush

Photo by Jody Fetzer, New York Botanical Garden, Bugwood.org

Foliar Nematodes on Ferns and Hostas

Photos by Bob Mulrooney, Extension Plant Pathologist, University of Delaware

HL Issue 23 2007

HL Issue 22 2007

HL Issue 21 2007

HL Issue 20 2007

HL Issue 19 2007

Weed Hotline Issue 22

Horseweed or Marestail Seedling

Downy Brome Seedling

Shepard's Purse Seedling

Wild Mustard Seedling

Annual Bluegrass Seedling

Purple Deadnettle Seedling

Henbit Seedling

Common Chickweed Seedling

All Photos From Online Pacific Northwest Insect and Weed Management Handbooks

Photos Credit: Oregon State University Jed Colquhoun and Larry Burrell photo Collection

Wild Radish

Hairy Bittercress

Corn Speedwell

Persian Speedwell

Purslane Speedwell

Ivyleaf Speedwell

Field Violet or Field Pansy

Yellow Rocket

Annual Ryegrass

Mousear chickweed

All Photos Courtesy of Shawn Askew, Turfgrass Weed Science, Virginia Polytechnic Institute & State University. www.ppws.vt.edu/~saskew/turfweeds/ or www.turfweeds.net