July 10, 2015:  Grape Canopy Maintenance

July 10, 2015: Grape Canopy Maintenance

Variable rain hits Wisconsin this week with substantial rain (in some cases flooding) in western parts of the state and drier conditions in the east.  Wisconsin Horticulture Update participants report an onslaught of fungal and bacterial diseases including anthracnose in trees, Septoria leaf spot, early blight, bacterial spot and bacterial speck of tomato, and angular […]

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June 26, 2015:  Beneficial Insects

June 26, 2015: Beneficial Insects

Off and on rains hit the state this week, and there is enough moisture to stimulate weed growth resulting in an uptick of weed and other plant ID questions at county UW-Extension offices.  Wild parsnip is a particular stand out this week. Wisconsin Horticulture Update participants also report an increase in insect (ants, four-lined plant […]

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June 19, 2015:  Hazelnuts

June 19, 2015: Hazelnuts

Recent rains make many areas of the state lush and green this week with an explosion of weed growth.  Wisconsin Horticulture Update participants mention numerous plant ID questions (including both weeds and herbaceous ornamentals), as well as questions about rose chafer, emerald ash borer, gypsy moth, and fungal leaf diseases (including tomato leaf blights).  The […]

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June 12, 2015:  Trees to Use in the Landscape

June 12, 2015: Trees to Use in the Landscape

Rain, rain and more rain is the norm this week on the Wisconsin Horticulture Update.  This coupled with warmer weather makes for lush plant growth in many areas of the state.  Participants comment on an increase in weed growth (and resulting weed ID questions) as well.  General tree decline is an often-mentioned topic this week, as well as […]

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June 5, 2015:  Compost Teas

June 5, 2015: Compost Teas

More rain and cool weather this week for much of Wisconsin.  Wisconsin Horticulture Update participants mention numerous insect issues in their counties including emerald ash borer, gypsy moth, scale insects, tent caterpillars, fruit worms, aphids (wooly and red), cucumber beetles, flea beetles, leaf miners, four-lined plant bug and spittle bugs.  Many participants comment about dieback on evergreens and […]

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May 29, 2015:  Hydroponics

May 29, 2015: Hydroponics

A rainy week this week for most participants of the Wisconsin Horticulture Update.  Participants comment that things are a bit slow this week at county Extension offices, but that they are being questioned by clients about ash leaf loss, anthracnose, insect leaf galls, ants (and more ants), slugs, and poorly leafing deciduous trees and browning evergreens.  Amy […]

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May 22, 2015:  Fruit Insect Pests

May 22, 2015: Fruit Insect Pests

Cold weather statewide, as well as dry weather in the south of Wisconsin are topics of discussion at this week’s Wisconsin Horticulture Update.  In addition, swarming insects (lake flies and gnats), invasive plants (garlic mustard and dame’s rocket), more mundane weeds (dandelinons and especially poison ivy) and peeling bark on maple trees are also subjects […]

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May 15, 2015:  Early Season Vegetable Update

May 15, 2015: Early Season Vegetable Update

Wet, warm and green are common themes at this week’s Wisconsin Horticulture Update.  Participants report that lilacs are in full to past full bloom in many areas of the state and dandelions are seeding profusely.  Questions at county UW-Extension offices are all over the map, including those on rhubarb and frost, treating ash trees, weed ID, […]

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May 8, 2015:  Turf Diseases

May 8, 2015: Turf Diseases

Spring pops this week in Wisconsin as rains in many areas and warmer temperatures across the state push springtime flowering trees and shrubs, as well as herbaceous ornamentals to bloom.  Crabapples, flowering plums, flowering cherries, serviceberries and even lilacs are showing off their glory this week, as are native plants like trout lily, Jack-in-the-pulpit, mayapple, bleeding […]

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