Small Fruit Insects

    Small Fruit Insects

    Brown Marmorated Stink Bug

    brown marmorated stink bug

    Brown marmorated stink bug (BMSB) is an invasive insect pest from eastern Asia. In Utah, it was first detected in 2012 in Salt Lake City. Its broad host range includes fruit, vegetable, ornamental, and field crop plants; in Utah, it has primarily infested ornamental deciduous trees and shrubs in urban and residential landscapes.

    Bumble Flower Beetle

    bumble flower beetle

    Bumble flower beetles are common throughout the growing season on flowers, oozing sap, and other sweet, overripe, or fermenting matter. Bumble flower beetles seldom warrant the use of chemicals for control.

    European Earwig

    european earwig

    The European earwig is an omnivore; it feeds on detritus, fungi, plants, and insects. Earwigs can injure the buds, leaves, flowers, and fruits of a broad range of plants, including fruits, vegetables, and ornamentals; they can be a nuisance pest by entering buildings.

    Invasive Insect Look-alikes: Mistaken Identity

    invasive insect

    Pest identification is the cornerstone of integrated pest management, but is a skill that can be difficult to master. Mistakes in identification are common, as many insects look and act alike, and/or can cause similar injury.

    Raspberry Crown Borer

    raspberry crown borer

    The raspberry crown borer attacks raspberry plants in northern Utah, causing cane-wilt and death. Crown borer has a 2-year life cycle; it spends much of it as a grub (larva) tunneling in the lower cane, crown and roots of raspberry plants.

    Raspberry Horntail

    raspberry horntail

    The raspberry horntail is a caneboring wasp that can cause crop loss to raspberries in northern Utah. Apply insecticides in the spring targeting adults, to prevent egg-laying in the new canes. Infested canes often become evident during summer when tips wilt and die back.

    Rose Stem Girdler

    rose stem girdler

    Rose stem girdler is a common cane-boring beetle of raspberry and blackberry in central and northern Utah. Larval feeding in the cambium under the cane bark causes spiral grooves and gall-like swellings; injured canes may wilt and break off.

    Spider Mites in Raspberry

    spider mites in raspberry

    Spider mite feeding can cause 'mite burn' in raspberry plantings and is typically first observed on the lower leaves. The twospotted spider mite is the most common mite to attack raspberry in Utah. Populations can build quickly to high numbers during hot, dry conditions.

    Spotted Wing Drosophila

    spotted wing drosophila

    Spotted Wing Drosophila (SWD) is a new Utah pest (first found August, 2010) that can infest un-ripened (pre-harvest), ripe, over-ripe, and spoiled fruits. SWD attacks a broad range of fruits, including tree fruits, berry fruits, and vegetable fruits.

    Western Flower Thrips

    western flower thrips

    Western flower thrips (WFT) are a frequent pest of nectarine, and an occasional pest of apple and other fruits in Utah. WFT can be abundant on numerous weed and crop hosts. They cause damage by feeding on and laying eggs into fruit buds, flowers, and fruits; a halo or “pansy spot” can form.