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Blueberry Planting and Maintenance Selection and Planting Care (fertilizing, harvesting, spray schedule info., etc.) Pruning Blueberry Problems Several species of blueberry are indigenous to the United States. These include the lowbush blueberry ( Vaccinium angustifolium ) found in Maine and Canada...

Kudzu Bug

The kudzu bugs love kudzu and are one rare example of an invasive feeding on another invasive. Since kudzu is one of its favored hosts in Asia, it is expected that the bug will continue to spread throughout the areas in the U.S. where kudzu grows. It would be nice if the kudzu bug only fed on kudzu but, unfortunately this critter feeds on the leaves and stems of soybeans and can cause serious yield losses.

Japanese Cedar Longhorned Beetle

This beetle has been in New England, North Carolina, and the west coast for some time. It was found in Maryland in 2011. It is a relatively small longhorned beetle (~3/8in). Females are reddish brown and males are black with reddish “shoulders.” Adults emerge mid-April through May. Hosts include...

Sirex Woodwasp

The Sirex woodwasp (SWW) is an exotic, invasive pest considered one of the top 10 most serious forest insect pests worldwide. SWW primarily attacks pine species. It has no natural controls outside its native range and causes extensive losses in areas where it is accidentally introduced. It is...

Spotted Wing Drosophila

Back to Problems of Tree Fruits May is the time to look for spotted wing drosophila (SWD), a relatively new pest of fruit plants in Maryland. Jerry Brust, Ph.D., Extension Vegetable Specialist gives you the details and photos in his (PDF) fact sheet . Two popular backyard fruit crops, blackberry...

Brown Marmorated Stink Bug

Back to Insects/Spiders - Indoors The brown marmorated stink bug ( Halyomorpha halys ) has become a fairly common pest in North America. Adult bugs are 14-17 mm and dark mottled brown. The last 2 antennal segments have alternating light and dark bands. The exposed edges of the abdomen also have...

Asian Longhorned Beetle

Asian Longhorned beetle adult The Asian longhorned beetle (ALB) is a very serious exotic pest that was introduced in solid wood packing material from China. It has the potential to cause more damage than Dutch elm disease, chestnut blight, and gypsy moths combined. The beetle was first detected in...

Emerald Ash Borer (EAB)

The EAB is an invasive pest from Asia that feeds on and kills ash trees. EAB will kill even large ash trees within three years after infestation. Presence of the emerald ash borer typically goes undetected until trees show symptoms of being infested – usually the upper third of a tree will thin and then die back. This is usually followed by a large number of shoots or branches arising below the dead portions of the trunk.

Invasive Insects

An invasive species is a non-native species whose introduction causes or is likely to cause economic harm, environmental harm, or harm to human health. Learn more about invasive insects of concern in Maryland.

Invasive Species

An invasive species is any non-native organism whose introduction can cause harm to the environment, human health or economic interests. Learn more about invasive species of concern in Maryland.


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