NOTES: For the insecticides listed below, one product trade name and formulation is provided for each active ingredient (AI) as an example of rates, preharvest interval (PHI), restricted entry interval (REI), and special instructions. In many cases, there are other products available with the same AI. Please see Table 27 and Insecticides Alphabetically Listed by Trade Name for more information on these insecticides.
The designation (Bee: L, M, or H) indicates a bee toxicity rating of low, moderate, or high. See the Protecting Honeybees and Native Pollinators section for more details.
The symbol * indicates a product is a restricted use pesticide. See Pesticide Safety and Use for more details.
The symbol OG indicates a product is listed by the Organic Materials Review Institute (OMRI) as approved for use in organic production. See Organic Certification section for more details.
Aphids, primarily Green Peach (Myzus persicae)
For more information on this pest and for biological and cultural controls, see Green Peach Aphid in the Pepper Insect Control section.
Stink Bug
Stink bugs, similar to thrips and tarnished plant bugs, feed on the base of buds as they develop. This causes scarring that prevents normal development of the bud in the feeding region, resulting in unmarketable, claw-shaped artichokes.
Tarnished Plant Bug (Lygus lineolaris)
In artichoke, tarnished plant bugs may feed on leaves, leaving behind a shothole appearance. More significantly, they may feed at the base of buds and, in extreme cases, cause buds to turn black, rendering them unmarketable. See Lettuce for more information about tarnished plant bugs.
Thrips
The piercing-sucking mouthparts of thrips cause twisting and curling of leaves. Occasionally, thrips may also feed on bracts of buds, which can become deformed and thus unmarketable.