Invasive pepper pest found hiding in California garden stores
Middleton EG, Lee N.
Invasive Species
The mandevilla or gardenia you just bought at the garden center could be carrying a tiny pest that damages peppers and ornamentals before anyone at the store even knows it's there.
Researchers checked retail garden stores in San Diego and Orange County for a tiny invasive insect called Thrips parvispinus, which hurts pepper plants and ornamentals. They found it living on Capsicum (pepper plants), Dipladenia, Mandevilla, and Gardenia over an entire year, even though this pest wasn't known to be in the area yet. The takeaway is simple: these pests can sneak into new regions on nursery plants long before official surveys catch them, so checking retail stores directly is a smart, easy way to catch invasions early.
Key Findings
Thrips parvispinus was detected in retail garden stores across San Diego and Orange Counties over a year-long survey period.
The pest was found on four plant genera: Capsicum, Dipladenia, Mandevilla, and Gardenia.
This is the first evidence of T. parvispinus presence in Southern California, despite no prior official detection in the region.
chevron_right Technical Summary
A destructive invasive insect called Thrips parvispinus has been found hiding on plants sold at garden retail stores in Southern California, even though it hasn't been officially reported in the region before. This shows the pest can quietly hitchhike into new areas on nursery plants long before anyone notices.
Abstract Preview
Original paper
Detecting Thrips parvispinus (Thysanoptera: Thripidae) in retail plant stores in Southern California.
Thrips parvispinus (Thysanoptera: Thripidae: Karny) is an invasive pest that harms peppers and ornamentals. It has not been reported as present in Southern California but has a history of establish...
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Species Mentioned
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Mandevilla is a genus of tropical and subtropical flowering vines belonging to the family Apocynaceae. It was first described as a genus in 1840. A common name is rocktrumpet.