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G2078 Phytophthora Root Rot of Alfalfa

Phytophthora Root Rot of Alfalfa Stephen N. Wegulo, Extension Plant Pathologist Bruce E. Anderson, Extension Forage Specialist Phytophthora root rot is a major cause of seedling death in newly established alfalfa and causes a progressive decline of established stands in Nebraska. This disease is caused by the fungus Phytophthora

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Common leaf spot in alfalfa is common this year - ANR Blogs

May 04, 2017 · Common Leaf Spot (Pseudopeziza medicaginis) in alfalfa - symptoms are small (.12 inch) circular brown/black spots on leaves, leaves turn yellow and drop. Brown fruiting bodies (apothecia) can be seen within the spots with a hand lens. Common leaf spot is a cool-season foliar disease that requires moisture and humidity, which we've had plenty of this year.

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Weed Management in Alfalfa - wric.ucdavis.edu

dleaf plants, and parasitic and poisonous plants, infest alfalfa hay grown throughout the arid alfalfa production regions of the West. Weeds in alfalfa directly compete for the same resources required for alfalfa growth and development: water, nutrients, light, and space. If .

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Alfalfa Stem Nematode Management in Alfalfa Production

Uncomposted manure from animals fed stem nematode infested hay may be a source of this pest Sheep grazing in the alfalfa for winter weed controlmay be a source of this pest. Sheep grazing in the alfalfa for winter weed control can also move the stem nematode around fields via tracking dirt on hoofs.

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Weed Management in Alfalfa - wric.ucdavis.edu

dleaf plants, and parasitic and poisonous plants, infest alfalfa hay grown throughout the arid alfalfa production regions of the West. Weeds in alfalfa directly compete for the same resources required for alfalfa growth and development: water, nutrients, light, and space. If .

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CROPLAN® Alfalfa Variety | WinField® United - WinField® United

Nematodes live in the soil, surface irrigation water, alfalfa roots and crown tissue, and have been identified throughout most of the West and Plains region to cause significant damage to alfalfa. Plants infested and injured by nematodes are often predisposed to secondary infection by other diseases.

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Plant Bugs Showing Up in Alfalfa Fields

Plant bugs are now becoming active in alfalfa fields across the state. A common question we receive is why some of these bugs looks so different from others. There are actually three different types of plant bugs that commonly appear in alfalfa fields: meadow plant bugs, Lygus bugs (aka tarnished plant bugs), and alfalfa plant bugs.

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Alfalfa Food Plots For Deer, A Beginners Guide.

Home > Alfalfa Food Plots For Deer, A Beginners Guide. Alfalfa Food Plots For Deer, A Beginners Guide. If you're thinking about trying to plant a few acres of alfalfa on your property for deer in the near future, here's a few tips and tricks that might help you grow a successful foodplot of alfalfa .

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Forage Alfalfa Crop Profile for New Jersey - Rutgers NJAES

Pure alfalfa stands - A perennial crop, alfalfa is seeded either in early spring March 15 to April 15 or in late summer, August 15 to September 15, at seeding rates varying from 8 to 15 pounds per acre. A pre-plant, incorporated herbicide is generally used prior to spring planting, but .

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Alfalfa Weevil - 5.500 - ExtensionExtension

The alfalfa weevil spends the winter as an adult in the crowns of the alfalfa plant or under leaves or other debris. Adult weevils are small, 1/4-inch, brownish-grey snout beetles, with a darker brown band down the back. Another weevil that can be confused with the alfalfa .

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Forage Alfalfa Crop Profile for New Jersey - Rutgers NJAES

Pure alfalfa stands - A perennial crop, alfalfa is seeded either in early spring March 15 to April 15 or in late summer, August 15 to September 15, at seeding rates varying from 8 to 15 pounds per acre. A pre-plant, incorporated herbicide is generally used prior to spring planting, but .

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Alfalfa insects: What to look for and how to scout | UMN ...

If the alfalfa plant bug is the dominant species, lower the threshold to two to three per sweep. Check for plant bugs when sampling potato leafhopper. For plant bugs, four to five sets of 10 sweeps each should provide a representative sample.

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Alfalfa Weevil | Alfalfa | Crop Pests | Insect Information ...

Early Season Infestation: Alfalfa is only 3 to 7 inches tall. Treat when feeding is evident on the top inch of growth – this usually requires one to two larvae per stem, depending on expected value of the hay. Retreatment may be necessary before cutting. Mid-Season Infestation: Alfalfa is 8 to 14 inches tall.

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Aphids Showing Up in Alfalfa | Integrated Crop Management

May 17, 2016 · Aphids are common insects to see in field crops, especially in alfalfa. In Iowa, there are at least four aphid species that can persist on alfalfa. A recent report of pea aphids near Clarion, IA from field agronomist Angie Rieck-Hinz prompted me to write this article. Learning to distinguish aphids in alfalfa takes a little practice, but is worth knowing for making sound treatment decisions.

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Adelphocoris lineolatus - Wikipedia

Adelphocoris lineolatus, is commonly known as the Lucerne bug or the alfalfa plant bug, and belongs to the family Miridae. It is an agricultural pest causing vast amounts of damage to numerous crops, but primarily to alfalfa crops around the globe.

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Alfalfa | Diseases and Pests, Description, Uses, Propagation

Alfalfa, Medicago sativa, is an herbaceous perennial in the plant family Fabaceae (peas and beans) which is primarily grown as a forage crop which can be grazed by animals or harvested as hay to be used as an animal feed.Alfalfa has a deeply penetrating taproot and the stems of the plant branch from a woody base, growing upright and erect or along the ground.

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Many Grass Pastures and Alfalfa Fields Infested with Fall ...

Sep 11, 2014 · Although grass pastures and alfalfa fields are preferred hosts of this pest insect, it has a large host range of 60 different forage and field crops. Numbers of fall armyworm larvae often peak in late summer and early fall resulting in substantial damage to grass and legume crops.

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Alfalfa plant bugs: How to identify which are pests | Farm ...

Alfalfa plant bug Alfalfa is a primary host of the alfalfa plant bug, making this insect a pest to watch for. Adults are approximately 3/8 of an inch long and pale green to brown in color. They are nearly twice the size of lygus bugs, although the two can sometimes be confused.

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Aphids Showing Up in Alfalfa | Integrated Crop Management

May 17, 2016 · Aphids are common insects to see in field crops, especially in alfalfa. In Iowa, there are at least four aphid species that can persist on alfalfa. A recent report of pea aphids near Clarion, IA from field agronomist Angie Rieck-Hinz prompted me to write this article. Learning to distinguish aphids in alfalfa takes a little practice, but is worth knowing for making sound treatment decisions.

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Potato Leafhopper Management in Alfalfa | Integrated Crop ...

Jul 23, 2019 · There have been some reports of potato leafhopper activity and plant injury in Iowa alfalfa this season. Some fields experienced winter injury and the cooler spring provided a slow start to plant growth in 2019. It is time to think about assessing alfalfa stands. Potato leafhoppers (Photo 1) do not overwinter in Iowa, but they are persistent alfalfa pests every growing season.

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ALFALFA NEMATODES: WHAT CAN BE DONE?

Plant parasitic nematodes are nonsegmented-microscopic roundworms that are frequently present in alfalfa fields. Whether or not alfalfa is to be planted in a nematode infested area, a grower should be knowledgeable about nematodes. If nematodes are present, both pre and postplant management strategies should be developed for pathogenic species.

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