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Japanese Beetle

... The Japanese beetle, Popillia japonica, is considered the single most important turfgrass-infesting pest in the United States.  It was first discovered in the U.S. in southern New Jersey in 1916.... The Japanese beetle, Popillia japonica, is considered the single most important turfgrass-infesting pest in the Uni...

Grub Control in Home Lawn

...ntly, they are becoming the preferred management strategy. Preventative control strategies require insecticide application prior to egg lay or hatch, timing varies depending on grub species: May/June beetle; late-May – early-June and Japanese beetle; late- June – late-July.   Applications of preventative control products should not be ...

Flea Beetles

... Flea beetles are an early season pest commonly found on all members of the cole crop group, such as cabbage, cauliflower, and broccoli, as well as spinach, beets, potatoes, and eggplant.Common Wiscons... Flea beetles are an early season pest commonly found on all members of the cole crop group, such as cabbage, cauliflower, and broccoli, as well as sp...

Roseslug Sawfly

The roseslug sawfly (Endelomyia aethiops) is an insect native to Europe that often causes damage on leaves of wild and cultivated roses in May and June.  Appearance:  Roseslug sawfly adults are fly-like insects with two pairs of wings.  Larvae are yellow-green caterpillar-like insects with an orange head.  The larvae grow up to ¾ inches in length. Symptoms and Effects: ...

Home Turf Insecticides

...ht Insect Control) Sod webworm • Bifenthrin (Scotts Step 3)• Carbaryl (Sevin) • Deltamethrin (Bonide Delta Eight Insect Control)• Trichlorfon (Grub Killer) White grubs (including Japanese beetle) • Carbaryl (Sevin)• Imidacloprid (Bayer Season-long Grub Control)• Halofenozide (Grub-Ex)  • Trichlorfon ...

Degree Days for Common Landscape Insect Pests

...00 DD502nd generation nymphs = 2800-3000 DD50 Eastern Tent CaterpillarEgg hatch = 50 DD501st instar larvae = 100 DD502nd instar larvae = 140 DD503rd instar larvae = 350 DD50Adults = 725 DD50 Elm Leaf BeetleLarvae = 400-500 DD50 Elm SawflyLarvae = 365 DD50 Euonymous ScaleCrawlers = 500-700 DD50 European Pine Sawfly1st instar larvae = 50-100 DD50 European Pine Shoot MothSpring la...

Turfgrass Disorder: White Grubs

White grubs feeding on the turfgrass roots can cause either irregular patches or uniformly thin, droughty turf that looks dead. Affected turf often looks like it lacks moisture, even after adequate irrigation or rainfall. Click here to find out more about the signs and symptoms of white grub manifestation as well as tips on preventing and controlling white grub damage.

Home Landscape Insecticides

...yrethrin (several products)Galls•Acephate  (Orthene, Isotox) •Endosulfan (Hi-Yield Thiodan)•Imidacloprid (Bayer Advanced Tree & Shrub Insect Control)•Insecticidal soap (Safer’s, Concern•Leaf beetles (elm, imported willow, Japanese)•Acephate (Orthene, Isotox)•Azadirachtin (Safer’s Brand Neem)•Carbaryl (Sevin)•Cyfluthrin (Bayer Powe...

Cucumber Beetles

... There are two common species of cucumber beetles in Wisconsin:  the striped and spotted.  The striped cucumber beetle is the more serious problem in the state.  Cucumber beetles are a p... There are two common species of cucumber beetles in Wisconsin:  the striped and spotted.  The striped cuc...

Asparagus Beetle

... The common asparagus beetle (Criocercis asparagi) and spotted asparagus beetle (Crioceris duodecimpunctata) are annual pests of asparagus in Wisconsin.  The common asparagus beetle is the more pr... The common asparagus beetle (Criocercis asparagi) and spotted asparagus beetle (Crioceris duodecim...

Garden Now

Prune summer flowering shrubs like hydrangeas, Japanese spirea, potentilla in early spring. For more info, click on the link below:
Cooperative Extension University of Wisconsin-Extension