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Fact | Step by Step Guide | Species | Soil | Seed Germination | Fertilizing | Diseases & Pests
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Diseases And Pest Management
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Many insect pests are known to cause head damage, but the damage usually is quite limited.
The sunflower head moth is the major insect pest. Aphids and whiteflies also can be a problem.
Insect pests that occasionally appear on sunflower plants include sunflower moth, sunflower maggot and sunflower beetle. Heads can be clipped off or leaves damaged by cutworm, headclipping weevil and assorted caterpillars. Grasshopper and wireworm also can cause plant damage.
Verticillium wilt and sclerotinia stalk/head rot or white mold are two of the worst diseases. Rust, phoma and downy mildew also can appear. Sclerotinia is hard to avoid, since varietal resistance is minimal and sclerotinia organisms can be built up in a field by soybean, alfalfa, canola, and weeds such as lambsquarter and wild mustard.
Several herbicides are registered for sunflower, including compounds such as Eptam, Treflan, Sonalan, Poast, Assert and Prowl.
| Sunflower Species | | Soil Considerations |
| Seed Germination | | Fertilizing | | Diseases and Pests |