Model category:
all models
beneficial insects
plant diseases
insects
invasive insects
endangered spp.
other crop models
apple and pear
stone fruits and nuts
CROPTIME models
weeds
Select model: (see list)
degree-day calculator (general purpose)
Asian citrus psyllid, Diaphorina citri [citrus] UC Davis IPM
Asian longhorned beetle [num. trees] OSU OIPMC model analysis
apple maggot 1st emerge [cherry, apple] Jones et al 89
apple maggot % emerge [cherry, apple] Jones et al 89
Asiatic rice borer (Chilo suppressalis) [rice] OSU OIPMC model analysis
Alfalfa Weevil [alfalfa] U WY from: Harcourt 1981
bertha armyworm [vegetables] Bailey 1976
bronze birch borer [birch trees] OSU OIPMC model analysis
black cutworm [vegetables] UC Davis
brown marmorated stink bug [multiple] Nielsen et al 08
boxwood leafminer [boxwood] dEustachio and Raupp 2001 OSU OIPMC model revised analysis
cabbage looper [vegetables] Toba et al 1973
corn earworm [sweet corn] Hartstack et al 1976
w. cherry fruit fly v2 [cherry E. of Cascades] Jones et al 91
w. cherry fruit fly [cherry W. of Cascades] AliNiazee 1979
honeydew moth [citrus, many hosts] OSU OIPMC model anal.
codling moth revised 07 [apple & pear] Knight 2007
cereal leaf beetle [grasses] Fulton et al 1975
codling moth [apple & pear] Brunner and Hoyt 1987
codling moth (new version) [apple & pear] Brief instruction page
cabbage maggot - UC Extension
Pear psylla, Cacopsylla pyricola [pear] WSU model
Diorhabda carinulatata [weed biocontrol] OSU OIPMC model analysis
douglas-fir needle midge [fir] OSU OIPMC model analysis
emerald ash borer [ash trees] Duarte 2013 OSU OIPMC model analysis
emerald ash borer v2 [ash trees] Duarte 2013 OSU OIPMC model revised analysis
Egyptian cotton worm (Spodop. littoralis) [polyphagous] OSU OIPMC model analysis
european grapevine moth [grapes] UC Coop Ext 2010-11
european pine shoot moth [nursery] Regan et al 1990
filbertworm [hazelnut] Aliniazee 1983
false codling moth [citrus, many hosts] OSU OIPMC model analysis
fruittree leafroller [tree fruits & ornament.] Judd et al 93
Galerucella calmariensis [weed biocontrol] OSU OIPMC model analysis v2
rangeland grasshoppers (PNW) [rangeland, crops] OSU OIPMC model analysis
spongy moth egg hatch [mixed oak] Russo et al 1993
spongy moth larvae & pupae [mixed oak] Carter et al 1992
spongy moth from Jan 1 [oak-maple] Sheehan-simpl.
isomate-c+ Pacific Biocontrol Corporation Data
Japanese flower thrips [vegetables] OSU OIPMC model analysis
Japanese knotweed psyllid, Aphalara itadori [weed biocontrol] CABI abstract
Japanese beetle [multiple crops] OSU OIPMC model analysis
Japanese pine sawyer beetle [pine trees] OSU OIPMC model analysis
Light Brown Apple Moth [omnivorous] OSU OIPMC model analysis
Lacanobia fruitworm [apple & pear] Doerr and Brunner 2007
Lygus bug [alfalfa seed] Ben Simko 2000
USDA Mormon Cricket [rangeland, crops] OSU OIPMC model analysis
mint flea beetle Berry et al
mint root borer Berry et al
Oak Ambrosia Beetle [oak trees] OSU OIPMC model analysis
obliquebanded leafroller [tree fruits] Brunner et al 1997
obliquebanded leafroller [hazelnut] Gang. and Ali. 1985
oriental fruit moth [stone fruit] CA IPM
omnivorous leaftier [multiple crops] OSU OIPMC model analysis vers. 1.0
orange tortrix (cold winter) [small fruit] Knight 1988
orange tortrix (mild winter) [small fruit] Knight 1988
Helicoverpa armigera [cotton, corn, others] OSU OIPMC model analysis
pink bollworm [cotton] UC IPM
pecan nut casebearer [pecan] Jackman and Harris 1988
Photuris frontalis - a synchronous firefly [misc] OIPMC model analysis
Pandemis leafroller [tree fruits] Brunner 1991
pine shoot beetle [pine trees] OSU OIPMC model analysis
potato psyllid [potato, tomato] OSU OIPMC model analysis
peach twig borer [stone fruits] 2007 USU Ext.
Pine Tree Lappet Moth [pine trees] OSU OIPMC model analysis
seedcorn maggot [corn, soybean] WI State
San Jose scale [tree fruits] Rice et al 1982
spotted lanternfly [numerous hosts including wine grapes, tree fruits, ornamentals] OIPMC Analysis of several publications PA and VA, USA 2015-2020
Spodoptera litura [omnivorous] OSU OIPMC model analysis
silver Y moth (Autographa gamma) [omnivorous] OSU OIPMC model analysis
sugarbeet root maggot Bechinski et al 1990
strawberry root weevil [peppermint] Cacka 1982
strawberry root weevil [strawb.] Umble, Fisher 2002
sunflower stem weevil Merrill et al 2010
Neoleucinodes elegantalis [solanaceae] OSU OIPMC model analysis
Sunn pest (Eurygaster integriceps) [wheat, barley] OSU OIPMC model analysis
spotted wing Drosophila [fruit] OSU OIPMC model analysis vers. 3.0
spotted wing Drosoph overwint mortal [fruit] OSU OIPMC model analysis
Tomato leafminer [solanaceae] OSU OIPMC model anal.
threecornered alfalfa hopper [legumes, grapes] OSU OIPMC model analysis
variegated cutworm [peppermint] Coop & Berry 1987
western bean cutworm [corn & beans] Neb. IPM
western flower thrips [vegetables] OSU OIPMC model analysis
walnut husk fly [walnut] Kasana & AliNiazee 1997
Thresholds in:
Fahrenheit °F
Celsius °C
lower: ° upper: ° Calculation type:
simple average/growing dds
growing dds (corn, sev. crops)
single triangle
double triangle
single sine
double sine
single sine w/intermed. cutoff
double sine w/intermed. cutoff
heating dds,chill dds-insects
cooling dds (power industry)
p-days (potato development)
wheat GDD (Bauer model)
Tmax units: daily max>Tlow
Tmax units: w/intermed. cutoff
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Starting date instructions: Date based on your own determination
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same yr
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Model validation status: in regular use
Region(s): USA
Output:
Simple header
No table
Graph precip
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All data provided "as is" and users assume all risk in its use - see full disclaimer . All NWS derived data
is not subject to copyright protection.
This site hosted by the Integrated Plant Protection Center at Oregon State University with support from the USDA National Plant Diagnostic Network, The OSU Agricultural Experiment Station, various USDA CSREES/NIFA grants, USDA SARE, USDA RMA, and USDA IPM Centers - Western Region.
Climate map data provided by OSU PRISM Group, real-time public weather data provided by U. Utah Mesowest and other networks including WSU AgWeatherNET , AGRIMET , CPS Adcon Networks , IFPNet Automata , California CIMIS , California PestCast , and others.
Previous versions online since May 16, 1997, this version 5.6, updated Jan 3, 2024
Contact Len Coop at coopl@science.oregonstate.edu
if you have any questions about this program.