INSECTS
Armyworm Pseudaleta unipuncta
Armyworm as a Pest of Field Corn - PSU Dept of Entomology Fact Sheet.
Asian Longhorn Beetle
Asian Longhorn Beetle - PSU IPM; discovered in Brooklyn, NY in 1996, now also present in NJ, IL, Toronto, Canada, and Worcestor, MA; not yet a pest in PA. Attacks many hardwood trees, such as maple, elm, horsechestnut, ash, birch, poplar, willow.
Asian Longhorn Beetle - DCNR.
Asian Long-Horned Beetle - USDA National Invasive Species Information Center.
Beneficial Organisms
Plants that Attract Beneficials and Pests and Associated Beneficial Insects - PSU; chart form. Be sure to avoid using any INVASIVE PLANTS listed on these sites. Invasive plants decrease our biodiversity. Check the Invasive Plants page to be sure.
Beneficial Organisms in Home and Garden Information Center's Plant Diagnostic Website - U of MD: photos of beneficial organisms and text stating what insects they eat.
Biological Control: A Guide to Natural Enemies in North America - Cornell U.; photos and descriptions of biocontrol agents of insect, disease and weed pests.
Butterflies and Moths
Butterflies and Moths of North America – Montana State U.; images, species by county.
Cabbage Maggot
PSU Entomological Notes
PA IPM
Carpenter Ants
PSU Entomological Notes
Cicada Killer Wasps
Sttinging Insects: Cicada Killer Wasps - Cornell U. The Bee-Files
Rutgers U. source
Eastern Tent Caterpillars
PSU Dept of Entomology, Entomology Notes.
PSU Woody Ornamental Integrated Pest Management - Eastern Tent Caterpillar Fact Sheet.
PSU Woody Ornamental Insect, Mite and Disease Management - Includes list of formulations for tent caterpillar management.
Emerald Ash Borer EAB
PSU Ornamental Entomology
First found in PA in Butler County in June 2007. In Feb 2009 present in Mifflin County, central PA, in addition to sections of western PA. First noted in the U.S. in Michigan in June 2002 and has now killed 40 million trees in MI, IL, IN, MD, OH, and PA. Unknown source of EAB but may have come in ash wood in cargo ships or in packaging of consumer goods.
The native range of EAB is eastern Russia, northeast China, Japan, Korea, Taiwan, and Mongolia.
All species of ash in the plant genus Fraxinus and their cultivars appear to be susceptible to EAB in North America. It does not attack mountain ash in the plant genus Sorbus.
European pine shoot moth
Text from PSU
photos of insect and damage from Oregon State U.
Home insects
Public Health Pest Problem Solvers - PSU IPM
Cornell Guide to Pest Management Around the Home: Cultural methods
Key to Common Household Ants – U of CA
Brown Marmorated Stink Bugs - PSU Entomology Fact Sheet
Honey Bees
Honey Bees - MAAREC Mid-Atlantic Appiculture Research and Extension Consortium
Japanese Beetles
MI Botanical Garden - complete info, photos of plant damage
Lace bugs
OSU Fact Sheet
Millipedes
Millipedes - PSU Entomological Notes.
Millipedes - OSU Extension Factsheet
Multicolored Asian Lady Beetles
Multicolored Asian Lady Beetles - OSU Fact Sheet.
Periodical Cicadas
PSU Entomology fact sheet.
U of CT Postdoctoral Research Associate website with detailed photos and info. Provides link to report emergences.
Stink Bugs Halyomorpha halys
Brown Marmorated Stink Bugs - PSU Entomology Fact Sheet
Virburnum Leaf Beetle
Viburnum Leaf Beetle Citizen Science - Cornell U.;detailed photos/text.
OTHER INSECT TOPICS
Growing Degree Days
Average daily temp minus baseline temp of 50° beginning 1 March. Degrees above 50° is cumulative through the season. Negative numbers are ignored. Ex. 80° high + 60° low for a particular day, divided by 2 = 70 – 50 = 20° days for that day. The number is used to predict plant and insect development under normal growing conditions. Unseasonal drought or disease would affect the results.
Daily PA Regional Growing Degree Days – PSU; take number from this chart to use with following chart to help determine insect’s life cycle and possible control measures.
Using Growing Degree Days for Insect Management - UNH Cooperative Extension
Insect ID Keys
NCSU key to insects – Center for IPM & NC State.
BugGuide – compiled by naturalists, hosted by Iowa State U.; photos
IDnature guides - MO Botanical Garden & U. of Georgia; scroll down to choose blue link: ants, bees, beetles, butterflies, caterpillars, dragonflies, crane fly, mosquitoes, ticks. Check boxes to narrow search.
Search Engines
Bughelp.org - website administered by professional, university-based entomologists in the northeastern United States. Fact sheets, Image gallery, FAQ, Pesticide info, Links, Spanish version.
Entomology Fact Sheets – PSU; search feature in upper right corner.
Ohioline Yard & Garden
Plant Pest Handbook Index - CT state gov., searchable by plant
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