Peppers · Symptom guide
Bugs on pepper plants
Bugs on pepper plants in a garden bed are a look-and-compare job. Cited sheets list aphids as observations, not a ranked or confirmed cause. This page does not diagnose, name a spray, or sell a treatment.
Cited observations are comparisons—not a confirmed diagnosis. Check the cited sources and local requirements before taking action.
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Illustrative photograph — not identification proof.
Look
Compare the plant in front of you with the cited notes after Other causes. Leaf curl, sticky leaves, or small insects alone do not name a cause on this page.
Other causes
Growing notes live on how to grow peppers. Leaf-curl notes live on pepper leaves curling. Garden-wide looks live on garden pests. Tomato hornworm is a separate species page — not this crop-pest list.
What the sources say — at a glance
One source per card. Facts are not averaged.
UMN Extension (Minnesota)
Aphids can colonize pepper plants. Leaf curling, discoloration, sticky leaves. Natural enemies nearby.
Details and limits (3)
Look
UMN Extension (Minnesota): aphids can colonize pepper plants in large numbers. You may notice leaf curling, discoloration, and sticky leaves. Observation on their pepper sheet — not a diagnosis.
Look
UMN Extension (Minnesota): if you have aphids, you may see natural enemies nearby feeding on them. Observation on their pepper sheet — not a biological-control program and not an efficacy claim.
Limit
Minnesota pepper sheet. Observation only — not a treatment.
UMN Extension (Minnesota)
1/16–1/8 in, pear-shaped. Green peach aphid and potato aphid named on pepper.
Details and limits (2)
Look
UMN Extension (Minnesota): aphids are small, 1/16- to 1/8-inch-long, pear-shaped, soft-bodied insects. They can range in color from green, black, red, yellow, brown, or gray. Green peach aphids feed on pepper. Potato aphids commonly infest peppers. Identification and named hosts — not a ranking and not a diagnosis.
Limit
Minnesota aphids sheet. Named-host list — not a ranking.
Maryland Extension (Maryland)
Aphids on peppers among named vegetables. Pepper leaves can be distorted.
Details and limits (2)
Look
Maryland Extension (Maryland): aphids can be found on a wide range including peppers. Pepper leaves can be distorted from aphid feeding. Observation on their leaf-curling sheet — not a diagnosis.
Limit
Maryland leaf-curling sheet. Observation only.
Maryland Extension (Maryland)
Peppers on the vegetable host list. Row cover until flower. Plant diversity as method.
Details and limits (4)
Host
Maryland Extension (Maryland): vegetables that appeal to aphids include peppers. Host list as named on their home-garden aphid sheet — not a ranking.
Method
Maryland Extension (Maryland): apply row cover around seedlings and vegetable transplants. Remove the cover when the plant begins to flower to allow for pollination. Method on their aphid sheet — not a prevention promise.
Method
Maryland Extension (Maryland): increase plant species and structural diversity. Method on their aphid sheet — not an efficacy claim.
Limit
Maryland home-garden aphids sheet. Method and host as named — not a program.
Clemson HGIC 1316 (South Carolina)
Aphids named among insects that may be a problem on pepper.
Details and limits (2)
Look
Clemson HGIC 1316 (South Carolina): insects that may be a problem on pepper include aphids. Named on their pepper sheet — not a ranking and not a diagnosis.
Limit
South Carolina HGIC 1316. Naming-on-sheet only.
Illinois Extension (Illinois)
No pepper-aphid note on this page.
Details and limits (2)
Look
Illinois's gardening/pepper page does not provide a pepper-aphid note for this page.
Limit
Illinois gardening/pepper page. Absence as stated.
Sources differ
Make it yours
Save the bed in the Field Book so next season is not a guess.
How we know — methodology. Ranges and assertions are cited per source, not blended.