Publications Archive
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January, 2015 Download |
Topics: Tent caterpillars, crane flies, yellowing lawns, and spruce aphids. | |
| Topics: Tent caterpillars, crane flies, yellowing lawns, and spruce aphids. | ||
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April, 2013 Download |
Topics: Resources for science backed Integrated Pest Management (IPM) and pesticide information for the home gardener as well as professionals. Includes brief descriptions of each resource. | |
| Topics: Resources for science backed Integrated Pest Management (IPM) and pesticide information for the home gardener as well as professionals. Includes brief descriptions of each resource. | ||
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April, 2012 Download |
Topics: Spring and wet weather issues — Cherry laurel shot-hole, yellowing lawns, lecanium scales, and rust on roses. | |
| Topics: Spring and wet weather issues — Cherry laurel shot-hole, yellowing lawns, lecanium scales, and rust on roses. | ||
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April, 2010 Download |
Topics: Why fruit trees fail to bear fruit — Lack of pollination, spotted wing drosophila, apple anthracnose, tent caterpillars covered. Brown rot of stone fruits and WSU Snohomish County Extension website for pest and garden resources. | |
| Topics: Why fruit trees fail to bear fruit — Lack of pollination, spotted wing drosophila, apple anthracnose, tent caterpillars covered. Brown rot of stone fruits and WSU Snohomish County Extension website for pest and garden resources. | ||
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April, 2008 Download |
Topics: The initial edition of the online “Bugs and Blights” newsletter, with information/links on season appropriate content — Tent caterpillars, apple ermine moth, cherry brown rot, blossom blight, fruit rot and their hosts. | |
| Topics: The initial edition of the online “Bugs and Blights” newsletter, with information/links on season appropriate content — Tent caterpillars, apple ermine moth, cherry brown rot, blossom blight, fruit rot and their hosts. | ||
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May, 2020 Download |
Topics: Carpenter ants (winged, worker, queen), hemlock woolly adelgid, balsam woolly adelgid, apple anthracnose, alder flea beetles, azalea sawfly, daylily gall midge. Includes relevant links to further info | |
| Topics: Carpenter ants (winged, worker, queen), hemlock woolly adelgid, balsam woolly adelgid, apple anthracnose, alder flea beetles, azalea sawfly, daylily gall midge. Includes relevant links to further info | ||
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May, 2020 Download |
Topics: Elderberry borer beetle, Ellychnia beetle, root-weevil larva, imported currant worm eggs & larva (sawfly), yellow rust on raspberries, burr knot on apple. Includes relevant links to further info | |
| Topics: Elderberry borer beetle, Ellychnia beetle, root-weevil larva, imported currant worm eggs & larva (sawfly), yellow rust on raspberries, burr knot on apple. Includes relevant links to further info | ||
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May, 2014 Download |
Topics: Lily leaf beetles, tent caterpillars, viburnum leaf beetle, cutworms, natural pesticides. | |
| Topics: Lily leaf beetles, tent caterpillars, viburnum leaf beetle, cutworms, natural pesticides. | ||
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May, 2012 Download |
Topics: Beneficial insects: millipedes, banded alder borer, bumblebee, soldier beetle, daddy long-legs, parasitic wasps, true bugs, and fireless firefly. | |
| Topics: Beneficial insects: millipedes, banded alder borer, bumblebee, soldier beetle, daddy long-legs, parasitic wasps, true bugs, and fireless firefly. | ||
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May, 2010 Download |
Topics: Brown rot on flowering plum, quince, almond, cherry and apple. Three types of spring tent caterpillars — silver-spotted tiger moth, western tent caterpillars, and apple ermine moth. Brief description of WSU website Hortsense. Brief biography of emeritus faculty (as of July 2017) Sharon Collman. | |
| Topics: Brown rot on flowering plum, quince, almond, cherry and apple. Three types of spring tent caterpillars — silver-spotted tiger moth, western tent caterpillars, and apple ermine moth. Brief description of WSU website Hortsense. Brief biography of emeritus faculty (as of July 2017) Sharon Collman. | ||
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April, 2014 Download |
Topics: Target the pest, protect the rest! — Red lily leaf beetle, tent caterpillars, freeze damage, pesticide cautions, blueberry bud stages. | |
| Topics: Target the pest, protect the rest! — Red lily leaf beetle, tent caterpillars, freeze damage, pesticide cautions, blueberry bud stages. | ||
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April, 2015 Download |
Topics: Currant sawflies, lily leaf beetles, coral spot, European chafer, rust on roses, and sequoia pitch moth. | |
| Topics: Currant sawflies, lily leaf beetles, coral spot, European chafer, rust on roses, and sequoia pitch moth. | ||
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January, 2014 Download |
Topics: Pesticide licensing, IPM classes, caterpillars, diagnostic books, yellowing lawns and spruce aphids | |
| Topics: Pesticide licensing, IPM classes, caterpillars, diagnostic books, yellowing lawns and spruce aphids | ||
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January, 2013 Download |
Topics: Organizing Bugs & Blights info by month, stink bugs: brown marmorated, native species, Conchuela, red cross stink bugs and proboscis for sucking plant juices. | |
| Topics: Organizing Bugs & Blights info by month, stink bugs: brown marmorated, native species, Conchuela, red cross stink bugs and proboscis for sucking plant juices. | ||
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January, 2011 Download |
Topics: Freeze damage — Lack of leaf drop, hardiness in plants, a list of symptoms stemming from winter freeze: bark split and branch dieback, southwest disease on trunk, root and branch die-back, shriveled and damaged leaves in spring, blossom delay. | |
| Topics: Freeze damage — Lack of leaf drop, hardiness in plants, a list of symptoms stemming from winter freeze: bark split and branch dieback, southwest disease on trunk, root and branch die-back, shriveled and damaged leaves in spring, blossom delay. | ||
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February, 2014 Download |
Topics: Effects of winter temperature fluctuations on insects and pests — tent caterpillars, slugs, snails, hemlock wooly adelgid, fleas, and flies. | |
| Topics: Effects of winter temperature fluctuations on insects and pests — tent caterpillars, slugs, snails, hemlock wooly adelgid, fleas, and flies. | ||
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February, 2013 Download |
Topics: Insects of late winter/early spring — Weevils, pollinators and springtails. | |
| Topics: Insects of late winter/early spring — Weevils, pollinators and springtails. | ||
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March, 2016 Download |
Topics: Target the pest, protect the rest! — European crane fly and European chafer. | |
| Topics: Target the pest, protect the rest! — European crane fly and European chafer. | ||
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March, 2014 Download |
Topics: Basic insect groups and how to identify them — Spiders, termites, stink bugs, and beetles. | |
| Topics: Basic insect groups and how to identify them — Spiders, termites, stink bugs, and beetles. | ||
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March, 2013 Download |
Topics: The landscape professional’s role in attracting pollinators. | |
| Topics: The landscape professional’s role in attracting pollinators. | ||
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March, 2012 Download |
Topics: Stormwater pollution, hellebore leaf spot, Bergenia leaf spot, and WSU Extension Agent Don Tapio and his gardening advice newspaper column/book. | |
| Topics: Stormwater pollution, hellebore leaf spot, Bergenia leaf spot, and WSU Extension Agent Don Tapio and his gardening advice newspaper column/book. | ||
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October, 2011 Download |
Topics: Household nuisance insects: fruit flies, slugs. Late blight, | |
| Topics: Household nuisance insects: fruit flies, slugs. Late blight, | ||
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October, 2014 Download |
Topics: Stink bugs: Wanted and unwanted. Western conifer seed bugs. | |
| Topics: Stink bugs: Wanted and unwanted. Western conifer seed bugs. | ||
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October, 2015 Download |
Topics: Stink bugs: brown marmorated and native species. Boxelder bugs, grass weevils, and banded wooly bear caterpillars. | |
| Topics: Stink bugs: brown marmorated and native species. Boxelder bugs, grass weevils, and banded wooly bear caterpillars. | ||
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September, 2012 Download |
Topics: Graft incompatibility, columbine sawfly, sapsucker (woodpecker) damage to trees, and information on the Snohomish County WSU Extension program Growing Groceries, which teaches gardening methods to those wanting to start community, food bank or family gardens. | |
| Topics: Graft incompatibility, columbine sawfly, sapsucker (woodpecker) damage to trees, and information on the Snohomish County WSU Extension program Growing Groceries, which teaches gardening methods to those wanting to start community, food bank or family gardens. | ||
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September, 2015 Download |
Topics: Drought stress symptoms in plants, and amending soil for better water absorption. | |
| Topics: Drought stress symptoms in plants, and amending soil for better water absorption. | ||
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October, 2010 Download |
Topics: The symbiotic relationship between yellow-jacket nests and carpet beetles. Information on yellow-jackets, bald-faced hornets, paper wasps, mud daubers, differences in nests and bed bugs. | |
| Topics: The symbiotic relationship between yellow-jacket nests and carpet beetles. Information on yellow-jackets, bald-faced hornets, paper wasps, mud daubers, differences in nests and bed bugs. | ||
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October, 1985 Download |
Topics: Pests of Apple Fruit: Apple scab, bull’s eye rot, russetting, apple maggot, San Jose scale, coddling moth, rosy apple aphid, bitter rot, apple anthracnose, pandemis leaf roller, leaf rollers & cutworms, bird injury and fruit drop. Learn the differences between signs and symptoms of these apple problems. | |
| Topics: Pests of Apple Fruit: Apple scab, bull’s eye rot, russetting, apple maggot, San Jose scale, coddling moth, rosy apple aphid, bitter rot, apple anthracnose, pandemis leaf roller, leaf rollers & cutworms, bird injury and fruit drop. Learn the differences between signs and symptoms of these apple problems. | ||
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November, 2015 Download |
Topics: Common landscape insects: European chafer, Japanese beetle, brown marmorated stink bug, and western conifer seed bug. | |
| Topics: Common landscape insects: European chafer, Japanese beetle, brown marmorated stink bug, and western conifer seed bug. | ||
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November, 2013 Download |
Topics: | |
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December, 2010 Download |
Topics: Winter pests in the orchard: tent caterpillars, aphids, lecanium scale, oystershell scales, and San Jose scale. | |
| Topics: Winter pests in the orchard: tent caterpillars, aphids, lecanium scale, oystershell scales, and San Jose scale. | ||
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October, 2013 Download |
Topics: Expanding on the purpose of Bugs & Blights: information resulting in correct diagnosis leading to resources that provide safe and effective monitoring and management options, potentially reducing unnecessary pesticide applications and decreasing the resulting damage to our waters, pollinators, and environment. Pest management resources for more info. | |
| Topics: Expanding on the purpose of Bugs & Blights: information resulting in correct diagnosis leading to resources that provide safe and effective monitoring and management options, potentially reducing unnecessary pesticide applications and decreasing the resulting damage to our waters, pollinators, and environment. Pest management resources for more info. | ||
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October, 2012 Download |
Topics: A primer on slugs and snails: Learn basics on their biology and behavior, where to find them and information on bait. | |
| Topics: A primer on slugs and snails: Learn basics on their biology and behavior, where to find them and information on bait. | ||
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August, 2010 Download |
Topics: Sirococcus shoot blight, apple leaf curl midge, green alder sawfly, woods weevil complex, and WSDA Pesticide License study materials (publications). | |
| Topics: Sirococcus shoot blight, apple leaf curl midge, green alder sawfly, woods weevil complex, and WSDA Pesticide License study materials (publications). | ||
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August, 2011 Download |
Topics: Fruit drop, lack of pollination, cold temperatures and information about the Pacific Northwest Insect Management Handbook. | |
| Topics: Fruit drop, lack of pollination, cold temperatures and information about the Pacific Northwest Insect Management Handbook. | ||
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August, 2012 Download |
Topics: Red lily leaf beetle, fall webworm, columbine sawfly, pesticide usage/label laws and Bugs & Blights blog. | |
| Topics: Red lily leaf beetle, fall webworm, columbine sawfly, pesticide usage/label laws and Bugs & Blights blog. | ||
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May, 2010 Download |
Topics: Fruit related issues: Green apple aphids, rosy apple aphid, lecanium scale, spotted wing drosophila, apple leaf curling midge, black cherry aphids, beneficial insects, and apple scab. | |
| Topics: Fruit related issues: Green apple aphids, rosy apple aphid, lecanium scale, spotted wing drosophila, apple leaf curling midge, black cherry aphids, beneficial insects, and apple scab. | ||
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June, 2020 Download |
Topics: Coreopsis beetle (tickseed beetle) adult & eggs, ladybeetle stages, sequoia pitch moth, cinnabar moth and rose rust. Includes links to additional info. | |
| Topics: Coreopsis beetle (tickseed beetle) adult & eggs, ladybeetle stages, sequoia pitch moth, cinnabar moth and rose rust. Includes links to additional info. | ||
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June, 2015 Download |
Topics: Lace bugs, azalea lace bug. | |
| Topics: Lace bugs, azalea lace bug. | ||
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June, 2014 Download |
Topics: | |
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June, 2013 Download |
Topics: Mountain ash sawfly and management options, including pruning, manual removal and pesticides. Black vine weevil. | |
| Topics: Mountain ash sawfly and management options, including pruning, manual removal and pesticides. Black vine weevil. | ||
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June, 2013 Download |
Topics: Pear and cherry slugs, Lorquin’s admiral, azalea sawfly, syrphid fly. (All references in this article to hortsense should be redirected to the updated site: hortsense.wsu.edu) | |
| Topics: Pear and cherry slugs, Lorquin’s admiral, azalea sawfly, syrphid fly. (All references in this article to hortsense should be redirected to the updated site: hortsense.wsu.edu) | ||
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June, 2012 Download |
Topics: Sawflies, new and native species — Dogwood sawfly, azalea sawfly, pear or cherry slug, willow sawflies, and currantworm. | |
| Topics: Sawflies, new and native species — Dogwood sawfly, azalea sawfly, pear or cherry slug, willow sawflies, and currantworm. | ||
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July, 2014 Download |
Topics: Target the pest, protect the rest! — Pesticide storage, squirrel damage, cottony camellia scale, and lady beetle/ladybug larvae. | |
| Topics: Target the pest, protect the rest! — Pesticide storage, squirrel damage, cottony camellia scale, and lady beetle/ladybug larvae. | ||
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July, 2013 Download |
Topics: Flea beetle and leaf beetle larvae, otherwise known as rose slugs (rose slug, bristly rose slug, curled rose slug, leaf beetle instars), pear-leaf roll midge and related damage. | |
| Topics: Flea beetle and leaf beetle larvae, otherwise known as rose slugs (rose slug, bristly rose slug, curled rose slug, leaf beetle instars), pear-leaf roll midge and related damage. | ||
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July, 2012 Download |
Topics: | |
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July, 2011 Download |
Topics: Heuchera rust, potato flea beetles, sawfly stages (focusing on currant sawfly), and related damage. | |
| Topics: Heuchera rust, potato flea beetles, sawfly stages (focusing on currant sawfly), and related damage. | ||
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August, 2014 Download |
Topics: Target the pest, protect the rest! — Bees vs. Wasps and pesticides. | |
| Topics: Target the pest, protect the rest! — Bees vs. Wasps and pesticides. | ||
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January, 2014 Download |
Topics: Pine tree damage: uniform freeze damage, random disease damage, needle disease, random branch damage, sequoia pitch moth, western gall rust. | |
| Topics: Pine tree damage: uniform freeze damage, random disease damage, needle disease, random branch damage, sequoia pitch moth, western gall rust. | ||
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January, 2014 Download |
Topics: Pioneer Award by WSNLA “Honoring Innovation and Enduring Contributions within the Green Industry” – Recipient/Extension Educator: Sharon J. Collman | |
| Topics: Pioneer Award by WSNLA “Honoring Innovation and Enduring Contributions within the Green Industry” – Recipient/Extension Educator: Sharon J. Collman | ||
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June, 2020 Download |
Topics: Cold damage to vegetable starts, Sirococcus blight on conifers, garden symphylan, wireworms (click beetle larva), downy mildew vs. powdery mildew, identifying hail damage, European chafer (larvae and adult beetle). Includes relevant links to additional info. | |
| Topics: Cold damage to vegetable starts, Sirococcus blight on conifers, garden symphylan, wireworms (click beetle larva), downy mildew vs. powdery mildew, identifying hail damage, European chafer (larvae and adult beetle). Includes relevant links to additional info. | ||