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  1. Powdery Mildew of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-37

    surface has a powdery, white to gray coating (Figure 2). The patches may remain limited throughout most of ... the season. Severely affected leaves may curl upward during hot, dry weather. Expanding leaves that ... are infected may become distorted and stunted. On young shoots, infections are more likely to be ...

  2. Periodical and "Dog-Day" Cicadas

    https://ohioline.osu.edu/factsheet/ENT-58

    branches, creating pockets in the branch. Each pocket may contain 20–28 eggs. Eggs are elongate and pearly ... white in color. The female continues laying eggs in rows along the branch. She may lay from 400 to 600 ... feeding on plant roots. During the spring of an emergence year, periodical cicada nymphs may build mud ...

  3. Tips for Calibrating Grain Yield Monitors—Maximizing Value of Your Yield Data

    https://ohioline.osu.edu/factsheet/anr-8

    yield map data for post-harvest analyses or supporting crop management decisions based on your yield ... monitor and its components. Information provided by your dealer or manufacturer through on-site support ... through your manufacturer's website or by contacting technical support. Check all cables, ...

  4. Phytophthora Root Rot of Raspberry

    https://ohioline.osu.edu/factsheet/plpath-fru-14

    feet” may be suffering from Phytophthora root rot. Symptoms include a general lack of vigor and a sparse ... plant stand. Apparently healthy canes may suddenly decline and collapse during the late spring or ... summer. In such cases, leaves may initially take on a yellow, red or orange color or may begin scorching ...

  5. Ohio’s Natural Enemies: Lacewings

    https://ohioline.osu.edu/factsheet/ent-72

    Brown lacewings, however, may provide valuable pest management services as larvae and adults.  Photo ... credit: Eric C. Matthews. Debris-carrying larvae may use plant material, prey remnants or waxy secretions ... larvae may be “naked” or “debris-carrying.” Debris-carrying larvae cover themselves with material such as ...

  6. Using Soil Electrical Conductivity (EC) to Delineate Field Variation

    https://ohioline.osu.edu/factsheet/fabe-565

    (EMI). These types of sensors do not directly make contact or penetrate the soil surface. The instrument ... a higher conductivity, directly influencing yield potential. This is why clay generally has a higher ... 1999). Temperature – Soil temperature can directly affect EC measurements but mainly around or below ...

  7. Proper Calibration and Operation of Backpack and Hand Can Sprayers

    https://ohioline.osu.edu/factsheet/fabe-531

    directions on the chemical container label tell a user which application rates give the best results. ... calibrated correctly. If the sprayer is not accurately calibrated, too little or too much chemical may be ... walking speed. If needed, adjustments in spray pressure can also be done, but it may take larger changes ...

  8. July 2021 Highlights

    https://fst.osu.edu/newsletter/food-science-and-technology-news/july-2021-highlights

    Measurements: Theoretical Principles and Industrial Applications during the Spring term of 2022. Ohio State News ... the Year “Support” Award; and Ohio State made it to the finals and placed 3 rd in the College Bowl. ...

  9. Pruning and Care of Tree Wounds

    https://ohioline.osu.edu/factsheet/HYG-3311-09

    responsible for nutrient and water translocation (phloem and xylem) or structural support (heartwood), ... nutrient and water availability. Some trees may never completely close their wounds, depending on these and ... longer recommended, with one exception: in areas where oak wilt disease occurs, wound paints may be ...

  10. Cicada Killer Wasp

    https://ohioline.osu.edu/factsheet/ENT-63

    killers rarely sting humans unless someone tries to handle one. However, homeowners may become alarmed ... aggressive territorial behavior, but they are incapable of stinging. Females may sting when handled roughly, ... Typically, the male wasps are smaller than the females. Their coloration may resemble that of yellowjackets ...

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