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  1. Interpreting a Soil Test Report

    https://ohioline.osu.edu/factsheet/agf-0514

    Soybeans, Wheat, and Alfalfa, Bulletin 974 (Culman, 2021) update. The P and K values used for recommendation ...

  2. Ambrosia Coloration in Maple Trees

    https://ohioline.osu.edu/factsheet/anr-0108

    shade trees. However, any number of insects and diseases affect the trees. Among the most important ... rubrum). Ambrosia colors are usually a combination of greens and browns. This discolored wood is called ... negundo). However, the ambrosia color in boxelder is red, instead of the greenish brown color found in red ...

  3. Brown Patch on Turfgrass

    https://ohioline.osu.edu/factsheet/HYG-3084

    unfavorable conditions. Symptoms Symptoms of brown patch vary greatly depending on turf species, mowing ... round patches on turf brown patch on turf brown path fungus on lawn fungicide infected turfgrass Plant ... to young immature grass seedlings. During long periods of hot, wet, and humid conditions, brown patch ...

  4. Bitter Rot of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-20

    rot is a common fruit rotting disease of apple (and pear) that occurs in all states where apples and ... disease on peach. Glomerella cingulata can also cause a leaf spot and canker on apple, although these ... forms of the disease are not common in Ohio. Disease Development and Symptoms Figure 1. Bitter rot on ...

  5. Lawn Grass Cultivar Selection

    https://ohioline.osu.edu/factsheet/hyg-4027

    patch diseases Failure to select the proper species or cultivar may result in poor or thin grass ... disease and insect resistance, and adaptations that allow the turf to thrive in differing environmental ... selection. Turfgrass cultivars with resistance to diseases should also be included in the blend. For ...

  6. Lime and the Home Lawn

    https://ohioline.osu.edu/factsheet/hyg-4026

    a favorable environment for the development of summer patch disease, caused by a fungus that infects turfgrass ... ranges. Turf outside of these ranges can lose quality.  Several factors cause the formation of acidic soil ... be applied to turf that is wilted or frost-covered. The turf should be irrigated after application in ...

  7. Powdery Mildew of Grape

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

    limited, and they appear as dark-brown to black patches that remain as dark patches on the surface of ... important disease of grapes worldwide. The disease generally is considered less economically important in ... Ohio than black rot or downy mildew. However, uncontrolled, the disease can be devastating on ...

  8. Bitter Rot of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-08

    spots Small, circular, whitish spot, which is soon surrounded by a brown ring Fungal fruiting bodies on ... Pathology Bitter rot has been recognized as a disease of grapes since 1887. The name was derived from the ... infected with bitter rot, the wine may be undrinkable. The disease is more common in the southern grape ...

  9. Black Rot and Frogeye Leaf Spot of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-07

    develop a series of brown and black concentric bands or rings. The rotted fruit finally turns black. The ... dark-brown concentric rings and a purple margin giving it a “frogeye” appearance. Black pycnidia, like those ... leaf spot are phases of a widespread and damaging disease of apple and crabapple. The fruit rot phase ...

  10. Soybean Rust

    https://ohioline.osu.edu/factsheet/plpath-soy-2

    Soybean rust (SBR), caused by the fungus Phakopsora pachyrhizi, is one of the most important diseases of ... favorable conditions and can cause severe defoliation. In regions where the disease has been reported, yield ... urediniospores and teliospores. Urediniospores are pale yellow-brown to salmon colored and have some ...

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