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  1. April 10, 2024- New Applicator Training- Webinar

    https://pested.osu.edu/events/april-10-2024-new-applicator-training-webinar

    Ornamental Weed Control (Category 6c). Attendees will choose between Industrial Vegetation (Category 5) and ... Turf (Category 8). No testing is available at the conclusion of this course. Contact the ODA to ... permitted to make 6c applications. 8- Turf-  The application of pesticides to lawns, turf, sod, or to soil ...

  2. Soil Acidity and Liming for Agronomic Production

    https://ohioline.osu.edu/factsheet/AGF-505-07

    is considered adequate if soil test levels are greater than 50 ppm (100 lb). Hi-cal (calcitic) lime ... ($50 hauling charge/60 acres). Summary In summary, make sure you obtain a soil test, determine if lime ... neutralization to raise the soil pH. High concentrations of hydrogen in soil solution (low soil pH) may cause the ...

  3. Water Hemp (Amaranthus tuberculatus)

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

    Water Hemp (Amaranthus tuberculatus) Description: Erect plant up to 8' in height.  Highly ... stems. Life Cycle: Annual Habitat: Crop fields, disturbed areas. Prefers poorly drained soils. Leaves: ...

  4. Annual Bluegrass Weevil

    https://ohioline.osu.edu/factsheet/ent-0095

    overwinter in grass near tree lines, in leaf litter, moss, high-cut grass, and pine litter. In spring, they ... plant’s crown. The last (fifth) instar larvae pupate near the soil surface and then emerge as adults, ... Larvae start to appear in the soil during the full bloom of Catawba rhododendron hybrid. However, the ...

  5. A Guide to Corn Growth and Development

    https://ohioline.osu.edu/factsheet/anr-0148

    maturity). Vegetative and reproductive stages of development are determined when 50% or more of the plants ... coleoptile emerges through the soil surface (Figure 2). The root system consists of the radicle (with branch ... roots) and seminal roots. The number of calendar days between planting and emergence varies and is ...

  6. Purple loosestrife (Lythrum salicaria)

    https://pested.osu.edu/node/410

    showy flowers throughout much of the summer. Mature plants can have from 30 to 50 stems arising from ... source of nutrition for wildlife. The highly invasive nature allows it to form dense, homogeneous stands ...

  7. Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage

    https://ohioline.osu.edu/factsheet/plpath-cer-04

    steps. Semi-quantitative tests estimate vomitoxin at or above certain levels (>5ppm) or within a given ... (DON), also called vomitoxin. As a result, high levels of Gibberella ear rot severity and moldy grain are ... usually accompanied by high levels of vomitoxin. Mycotoxins are harmful to both humans and animals. ...

  8. Poison hemlock (Conium maculatum)

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

    to most soils and is often found near roadsides. Field borders, hiking trails, railroad tracks, ... concentration of poison. It contains highly poisonous alkaloids toxic to all classes of livestock and humans. It ...

  9. Japanese knotweed (Polygonum cuspidatum)

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

    herbaceous plant that can grow up to 10' high. The plant is aggressive and produces extensive rhizomes ... tolerate a wide array of soil and moisture conditions. Leaves: Alternating and broad. They typically grow ...

  10. Forage Kochia (Bassia prostrata)

    https://pested.osu.edu/node/424

    Forage Kochia (Bassia prostrata) Description: Small to medium polymorphic evergreen subshrub, ...

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