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Pest Control, Degree Day Information, and Other Links

The following are useful sources of information for greenhouse managers.

General Information

Search engine for ornamental bulletins
http://www.cals.ncsu.edu/plantpath/Ornamental_Internet_Guide.html

List of trees and shrubs less likely to have pest problems (from Rhode Island)
http://www.uri.edu/research/sustland/

Registered Pesticide Label Database

National Pesticide Information Retrieval System
http://state.ceris.purdue.edu/

Weather: Degree Day Calendars, Forecasts, Frost Alerts

Purdue University Weather and Climate Information
http://ipmguidelines.org/greenhouse/content/default.asp

Calendar of Degree Day and Flowering Plant Phenology
http://ohioline.ag.ohio-state.edu/b504/b504_21.html

Identification, Biology, and Control of Insects, Diseases, and Weeds:

Purdue University Plant and Pest and Diagnostic Laboratory
http://www.ppdl.purdue.edu/ppdl

Purdue University Landscape Entomology Laboratory
http://www.entm.purdue.edu/Entomology/research/cs/

Insect and mite controls for woody plants and herbaceous perennials
http://ohioline.ag.ohio-state.edu/b504/index.html

Disease Control in the Landscape
http://ohioline.ag.ohio-state.edu/b614/index.html

New Jersey Agricultural Weed Gallery
http://www.rce.rutgers.edu/weeds/default.asp

Controlling Weeds in Nursery and Landscape Plantings
http://ohioline.ag.ohio-state.edu/b867/index.html

Laminated Card Sets of Landscape Pests and Beneficial Insects
http://www.inhs.uiuc.edu/chf/outreach/bad2/guysframes.htm

The Less Toxic Home Garden
http://www.centralsan.org/education/ipm/hgonlineguide.html

Electronic Access to Purdue Publications

Purdue University Cooperative Extension Service Bulletins Online
http://www.agcom.purdue.edu/AgCom/Pubs/menu.htm



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