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  1. Downy Mildew of Blackberry

    https://ohioline.osu.edu/factsheet/plpath-fru-48

    blackberry (Rubus sp.) is a systemic disease caused by the fungal-like pathogen Peronospora sparsa. Nearly ... all blackberry cultivars are susceptible to downy mildew. The disease also occurs on boysenberry, ... visible. Disease is most severe during wet weather with cool to warm temperatures. Figure 1. Downy mildew ...

  2. Growing Peaches and Nectarines in the Home Landscape

    https://ohioline.osu.edu/factsheet/hyg-1406

    nectarines are firm and free from defects such as bruising, and insect and disease damage. The best ripe ... and diseases. Frequently, the season’s crop may be lost either by flower bud kill due to low winter ... and managing insects and diseases. Those unable or unwilling to do these things should not attempt to ...

  3. Billbugs in Turfgrass

    https://ohioline.osu.edu/factsheet/HYG-2502-12

    of the turf, as if the turf was going into drought and heat dormancy or disease attack was occurring. ... turf plant. Larvae are grub shaped, but legless; they have cream-colored bodies, brown head capsules, ... weevils chemical control of larvae snout beetles turf pests turf damage turf fungal diseases parasitic ...

  4. Japanese Beetle

    https://ohioline.osu.edu/factsheet/ENT-46

    like old carpet to reveal the grubs. Large populations of grubs kill the turf in irregular patches ... usually in high-quality urban turf. Beetle skeletonizing a leaf Hosts The adult beetles are general ... most commonly damage turf. The turf first appears off-color as if under water stress. Irrigating causes ...

  5. Powdery Mildew on Turfgrass

    https://ohioline.osu.edu/factsheet/HYG-3081

    ornamentals, and turfgrass species. In general, it is not considered to be a serious disease on turf. Powdery ... disease lawn and turf powdery mildew on turf turf fungus chemical control of powdery mildew fungal growth ... Severe outbreaks on Kentucky bluegrass tend to occur on turf growing in shaded areas during spring to ...

  6. Ripe Rot of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-0052

    disease that primarily occurs in warm, moist, growing regions in the southeastern United States. However, ... during fruit maturation. The disease is caused by multiple species of the fungus Colletotrichum. Ripe rot ... to undesirable flavors and color. Disease Development and Symptoms Ripe rot is caused by multiple ...

  7. A Guide to Corn Growth and Development

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

    most often being aborted. Silks outside the husk leaves are drying and changing from tan to light brown ... to brown. Silks will naturally detach from their respective kernels following fertilization, which ... remain white or change to pink or red. The ears have husk leaves beginning to turn brown on the edges. ...

  8. Growing Apples in the Home Orchard

    https://ohioline.osu.edu/factsheet/hyg-1401

    color, bloom period, ripening season, disease resistance and pollen compatibility, all of which are ... that are resistant to important diseases such as apple scab, cedar apple rust, and fire blight. Some of ... the more common disease-resistant apple cultivars are Enterprise (Figure 1), Goldrush, Jonafree, ...

  9. White Rot and Botryosphaeria Canker of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-42

    canker phase of the disease is most severe in trees weakened by drought, winter injury, sunscald, poor ... pruning, low or unbalanced nutrition, and other plant diseases. The fruit rot phase can be sporadic in ... to be affected than other varieties. Symptoms Fruit At first, small, reddish-brown spots appear ...

  10. Brown Rot of Stone Fruits

    https://ohioline.osu.edu/factsheet/plpath-fru-29

    Pathology Brown rot is a common and destructive disease of peach and other stone fruits (plum, nectarine, ... appear in the spring as the blossoms open. Diseased flowers wilt, turn brown, and may become covered with ... from an infected peach. Figure 5. Brown rot disease cycle. We want to thank the New York State ...

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