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  1. Water Hemp (Amaranthus tuberculatus)

    https://pested.osu.edu/node/425

    Habitat: Crop fields, disturbed areas. Prefers poorly drained soils. Flower: Narrow bracts arranged in ...

  2. Perennial sowthistle (Sanchus arvensis)

    https://pested.osu.edu/node/418

    alkaline to neutral, fine textured, rich soils. Flower: Bright yellow to yellow orange clustered flowers ...

  3. Hairy white top or ballcress (Lepidium appelianum)

    https://pested.osu.edu/node/421

    Prefers alkaline soils Flower: Clustered white flowers in racemes made up of 20-30 flowers Fruit: Inflated ...

  4. AGRICULTURE FERTILIZER RECERTIFICATION WEBINAR- February 28, 2024

    https://pested.osu.edu/events/agriculture-fertilizer-recertification-webinar-february-28-2024

    Live Recertification Online Webinars One Hour Agriculture Fertilizer Recertification- Registration ... CLOSED February 28, 2023 Agricultural Fertilizer Recertification Links to the webinars rooms will be ...

  5. Poison hemlock (Conium maculatum)

    https://pested.osu.edu/node/409

    Habitat: Grows in dry to most soils and is often found near roadsides. Field borders, hiking trails, ...

  6. Musk thistle (Carduus nutans)

    https://pested.osu.edu/node/407

    Habitat: Grows in neutral to acidic soils. It invades open natural areas, meadows, grassy bald, disturbed ...

  7. Johnsongrass (Sorgum halepense)

    https://pested.osu.edu/node/402

    Root: Fibrous. Rhizomes are found close to the soil surface. They are stout with purple spots and scales ...

  8. Agricultural and Horticultural Field Crop Webinar- February 27, 2024

    https://pested.osu.edu/events/agricultural-and-horticultural-field-crop-webinar-february-27-2024

    LIVE COMMERCIAL RECERTIFICATION ONLINE WEBINARS Agricultural and Horticultural Field Crop February ... webinar.   Categories Offered: Core 2a- Agronomic Pest 2b- Horticultural Pest 2c- Agricultural Weed 2d- ...

  9. Japanese knotweed (Polygonum cuspidatum)

    https://pested.osu.edu/node/401

    of soil and moisture conditions. Flower: Many white flowers arranged in spikes. Bloom in August and ...

  10. Ohio Commercial Pesticide Recertification Conference- Cincinnati Area- 2024

    https://pested.osu.edu/events/ohio-commercial-pesticide-recertification-conference-cincinnati-area-2024

    Ohio State University Extension & Ohio Department of Agriculture February 22, 2024- OASIS GOLF CLUB ... Information Parking Information Agenda Registration Information Categories Offered Agricultural Fertilizer ... Shade Tree Pest 2 Agricultural Pest Control   A   General Ornamental Pest Control   A   Agronomic Pest ...

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