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  1. Check your asparagus field for aphids - MSU Extension

    • Asparagus aphids cause damage to the plants by injecting a toxin when feeding and a few aphids per plant are enough to lead to economic injury. Aphids do not feed on the spear, but prefer to feed on fer… See more

    Biology

    The asparagus aphid overwinters in the egg stage on the fern residue left in the field. Eggs hatch in the spring; nymphs and adults feed on the spears and fern. Their only host i… See more

    College of Agriculture & Natural Resources
    Description

    Asparagus aphids can be easily distinguished from other aphids because they are very small (1 to 1.5 mm), grey-green with a bluish tint and the body is covered wit… See more

    College of Agriculture & Natural Resources
    Monitoring

    Place a white beat sheet (larger is better) at the stem below the fern. Put your arm around the bush and shake the fern vigorously into the beat sheet. Closely examine th… See more

    College of Agriculture & Natural Resources
    Management

    Populations tend to build up later in the season in established asparagus after the field is in full fern. Young fields where spears are not picked, nurseries and volunteer pl… See more

    College of Agriculture & Natural Resources
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  2. Asparagus aphids are small (1.6 to 2 mm), oval, green to gray aphids that may be covered in a waxy secretion. Unlike many aphids, they have no visible ‘cornicles’, two exhaust pipe-like structures on the tip of the abdomen. They often occur in dense clusters and may be winged or wingless.
    ag.umass.edu/vegetable/fact-sheets/aphid-asparagus
    Asparagus aphids are small (1⁄16″), powdery gray to gray-green insects. They may be winged or wingless. They feed in colonies on the ferns of asparagus and are typically found at the base of leaves. Aphid feeding causes severe stunting of the foliage and gives fronds a tufted, blue-gray appearance. Shoots of mature plants are severely stunted.
    hortsense.cahnrs.wsu.edu/fact-sheet/asparagus-as…
    The powdery, pale green asparagus aphid is only a few millimeters long. Like other aphids, it is a pear-shaped, soft-bodied insect with a pair of tailpipe-like appendages (cornicles) on its abdomen.
    content.ces.ncsu.edu/insect-and-related-pests-of-v…
    Description: The asparagus aphid is a recent import from Europe that causes a brooming distorted growth of the ferns of asparagus. It is bluish gray in color, and the cornicles aren’t readily apparent. Normally only isolated plants are affected and can be spot treated.
    vegento.russell.wisc.edu/pests/aphids/
    Asparagus aphids cause damage to the plants by injecting a toxin when feeding and a few aphids per plant are enough to lead to economic injury. Aphids do not feed on the spear, but prefer to feed on fern, causing bushy, distorted branching, yield loss for next year’s crop, and, if damage is severe, the plant may be killed.
    www.canr.msu.edu/news/check_your_asparagus_f…
     
  3. Disease and Insect Pests of Asparagus - MSU Extension

    Nov 9, 2015 · Asparagus Aphid. Brachycorynella asparagi Family – Aphididae. Identification. Adults and nymphs are bluish gray, milky opaque with a powdery texture. They are some of the smallest aphids at about 0.04-0.0625 inches, …

     
  4. Pests of Asparagus - NC State Extension Publications

  5. Asparagus pest management - UMN Extension

  6. Asparagus: Asparagus aphid | Hortsense - Washington State …

  7. Aphid, Asparagus - Center for Agriculture, Food, and …

    Asparagus aphids are small (1.6 to 2 mm), oval, green to gray aphids that may be covered in a waxy secretion. Unlike many aphids, they have no visible ‘cornicles’, two exhaust pipe-like structures on the tip of the abdomen. They often occur in …

  8. Aphids | Wisconsin Vegetable Entomology - University …

    Description: The asparagus aphid is a recent import from Europe that causes a brooming distorted growth of the ferns of asparagus. It is bluish gray in color, and the cornicles aren’t readily apparent.

  9. Asparagus Aphid: Brachycorynella asparagi | Integrated Pest …

  10. Asparagus Aphid, Brachycorynella asparagi (Mordvilko) …

  11. Asparagus | Pacific Northwest Vegetable Extension Group

  12. Asparagus Asparagus - CT.gov

  13. Asparagus Insects | Hortsense | Washington State University

  14. Asparagus > Spear > Deformed spear - University of Minnesota …

  15. Asparagus Pests - Master Gardener Program

  16. Pest & Disease Control for Asparagus Plants - Stark Bro's

  17. Asparagus beetles | UMN Extension

  18. Asparagus aphid | Pacific Northwest Vegetable Extension Group ...

  19. Asparagus insect pests: asparagus beetle and asparagus miner