Pentatomidae is an insect family with over 4700 species. They’re part of the Heteroptera suborder, which means their forewings are partially hardened and cover their hindwings when resting, creating a flat surface. Besides their fragmented faces, they also have antlers divided into five segments, from which their scientific name comes from. Most of the species have common names associated with their specific scent, a foul smell released when they feel threatened, making them “stink bugs” and other similar variations. Pentatomidaes are usually green, yellow, or brownish, with some species presenting in brighter and more colorful shades. Several species are considered severe pests on crops since they feed off plants’ sap and other fluids, while others are predatory and can be considered beneficial. These insects threaten several crops, including corn, soybeans, vines, shrubs, ornamental trees, and sorghum.
Pentatomidae
Signs of damage
- Physical damage. Due to their pierce-sucking mouths, they inflict physical damage by penetrating their needle-like mouthparts.
- Chemical damage. To help digestion, they inject the plant with harmful chemical materials.
- Death of seedlings.
- Oval holes. A clear sign of Pentatomidae’s presence are rows of oval holes across leaves, with distinct yellow borders.
- Reduction of the root mass.
- Stunted growth.
- Weaker plants. Due to their damaging action, plants become more susceptible to other damaging factors, such as unfavorable weather conditions and other insects and pathogens.
How to prevent
Scouting is considered the most effective way to prevent and mitigate “stink bugs” damage, as it is already a common practice for other insects and parasites. These insects tend to feed at the base of the plant. Also, keep in mind that places that have had Pentatomidae damage in previous years are more susceptible to their reappearance.
Heal
With these insects, preventing their appearance and spreading is more effective than healing the plants after damage, especially since some are resistant to many pesticides.
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