Like other beetles in the beetle genus Prionus, the California Root Borer resembles its relatives, especially its ‘cousin’ in the east, the Broad-necked Root Borer.Both have long, serrated antennae and 3 points on each side of the pronotum. Larvae tunnel downward to feed on living roots of a variety of trees and shrubs. The broadnecked root borer is a black or reddish brown beetle, up to one and a half inches long, whose appearance differs from ALB in that it is more robust and does not have white spots. Broad-Necked Root Borer. Fungi can attack the roots of a tree, and make control virtually impossible. Broad-necked Root Borer in Howard Co., Maryland (6/29/2016). It is wise to identify those trees affected by root pathogens so that resistant replacements can be sought for future plantings. • Birch bronze borer • Yellow necked caterpillar. Broad-necked root borer, female, Prionus laticollis, subfamily Prioninae, family Cerambycidae. This family includes long-horned beetles that typically have very long antennae relative to their body length. According to BugGuide: “Eggs are inserted into ground (or under litter) in groups. This bug has been reportedly found in the following regions: New Port Richey, Florida. Some are quite small, like the turpentine beetle and others can be several inches long like the hissing borer. Several species of insects bore into apple trees, including round headed apple tree borer, flat headed apple-tree borer, and broad-necked root borer. and Rodenticide Ad:, as ameoded, foe the pestldde Specific Use Restrictions: =~N~'~'l \ ~ -S\ \ A Broad-necked Root Borer in Worcester Co., Maryland (7/19/2013). Eagle, Idaho. Broad-necked Root Borer (Prionus laticollis) 3 more photos VIEW GALLERY. Photo by Scott Housten. This impressive egg-laden, 2-inch long female Broad-necked Root Borer (Prionus laticollis) was attempting to lay her eggs when I discovered her.She repeatedly extended and retracted her ovipositor (pointed, egg-laying structure at tip of abdomen) in an attempt to probe the packed dirt in my driveway, but finally moved on to softer soil. Determined by Bruce Tilden and Blaine Mathison via BugGuide. Elm California Root Borers are found west of the Mississippi River. Once they hatch into larvae (grubs), the larvae eat tree and bush roots. The most common problem is root rot. Root borers can be massive reaching lengths of 3 inches or more! Hi J, Your insect is a female Broad-Necked Root Borer, Prionus laticollis, and the yellow thing is her ovipositor which is used to lay eggs. Photo by Bonnie Ott. Roots. APPLE TREE BORER feed on the wood of trees, affect fruit trees including apples, cherries, peaches, pears and plums. □ The broad-necked root borer uses her ovipositor (shown here) as a hypodermic needle to stab into the ground (or in piles of leaves) and lay her eggs there. This sort of data can be useful in seeing concentrations of a particular species over the continent as well as revealing possible migratory patterns over a … P. laticollis, also known as the broad-necked root borer, is a beetle that belongs to the family Cerambycidae. View gallery. A Broad-necked Root Borer … Boring beetles will fall into three types: those which thrive just under the bark, those which bore through the trunk and those which live in the root system of the tree. Broad-necked Root Borer. The map below showcases (in blue) the states and territories of North America where the Broad-Necked Root Borer may be found (but is not limited to). 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