57 research outputs found

    The potato leafhopper in alfalfa (1983)

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    "The potato leafhopper is often a serious pest of alfalfa grown in Missouri. These insects are small and frequently escape detection by growers until serious damage has occurred. Moreover, the early symptoms of feeding are subtle and often go unnoticed. If not detected in the early stages, yellowing of leaves may be the first indication of a problem. The nutritional value of alfalfa, as well as yield and stand vigor, can be reduced by the feeding of this insect pest."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)Revised 2/83/8

    The meadow spittlebug on alfalfa and red clover (1984)

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    "The meadow spittlebug, a small (1/4 to 3/8 inch), leafhopper-like insect, is a pest of forage crops in the northern third of Missouri. The nymph can cause economic damage to the first cutting of both alfalfa and red clover."--First page.R.L. Brandenburg (Department of Entomology, College of Agriculture)Revised 1/84/5

    Aphid control in alfalfa (1983)

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    "Aphids, tiny insects with piercing-sucking mouthparts, can attack alfalfa at any time during the growing season. The pea aphid and spotted alfalfa aphid can be found throughout the state of Missouri, but the spotted alfalfa aphid is most often a problem only in the southwestern portion of the state. The blue alfalfa aphid is now present in the western portion of the state but at this is not a problem."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)Revised 2/83/8

    Blister beetles in alfalfa

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    "In Missouri, blister beetles are an infrequent pest of alfalfa, but when present in sufficient numbers the consequences can be serious. These insects cause only limited plant damage. However, when they are ingested by livestock, especially horses, the animals may become sick and even die. These insects produce a highly toxic drug called cantharidan."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)New 11/83/10

    Grasshopper control in forage crops and pastures (1983)

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    "Grasshoppers are relatively large insects, capable of doing considerable damage to a number of crops. In early summer, they normally feed on grasses and weeds in non-crop areas, and later in the season, they move into fields. Grasshopper populations in Missouri are sporadic. In general, damage to crops is most severe in years with dry weather."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)Revised 2/83/8

    The meadow spittlebug on alfalfa and red cover

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    "The meadow spittlebug, a small (1/4 to 3/8 inch), leafhopper-like insect, is a pest of forage crops in the northern third of Missouri. The nymph can cause economic damage to the first cutting of both alfalfa and red clover. The meadow spittlebug has been known to feed on over 300 different kids of plants, ranging from trees and shrubs to grasses. Alfalfa and red clover are both preferred hosts."--First page.R.L. Brandenburg (Department of Entomology, College of Agriculture)Revised 1/85/5

    Grasshopper control in forage crops and pastures (1984)

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    "Grasshoppers are relatively large insects, capable of doing considerable damage to a number of crops. In early summer, they normally feed on grasses and weeds in non-crop areas, and later in the season, they move into fields. Grasshopper populations in Missouri are sporadic. In general, damage to crops is the most severe in years with dry weather."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)Revised 1/84/5

    Control of the variegated cutworm and fall armyworm in alfalfa (1982)

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    "The variegated cutworm and the fall armyworm are both serious pests of alfalfa. Although both are the larvae of moths and feed on alfalfa stems and leaves, they are usually pests at opposite ends of the growing season. While the variegated cutworm overwinters in Missouri, the fall armyworm migrates into Missouri each summer. As a result, variegated cutworms frequently damage alfalfa in the spring, while the fall armyworm can cause serious damage to alfalfa in the fall (especially in fall-seeded stands). Failure to control outbreaks of these pests can lead to reduced yields and loss of stands."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)New 12/82/10

    Control of the variegated cutworm and fall armyworm in alfalfa

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    "The variegated cutworm and the fall armyworm are both serious pests of alfalfa. Although both are the larvae of moths and feed on alfalfa stems and leaves, they are usually pests at opposite ends oft he growing season. While the variegated cutworm overwinters in Missouri, the fall armyworm migrates into Missouri each summer. As a result, variegated cutworms frequently damage alfalfa in the spring, while the fall armyworm can cause serious damage to alfalfa in the fall (especially in fall-seeded stands). Failure to control outbreaks of these pests can lead to reduced yields and loss of stands."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)Revised 1/85/5

    Control of the variegated cutworm and fall armyworm in alfalfa (1984)

    Get PDF
    "The variegated cutworm and the fall armyworm are both serious pests of alfalfa. Although both are the larvae of moths and feed on alfalfa stems and leaves, they are usually pests at opposite ends of the growing season. While the variegated cutworm overwinters in Missouri, the fall armyworm migrates into Missouri each summer. As a result, variegated cutworms frequently damage alfalfa in the spring, while the fall armyworm can cause serious damage to alfalfa in the fall (especially in fall-seeded stands). Failure to control outbreaks of these pests can lead to reduced yields and loss of stands."--First page.Rick L. Brandenburg (Department of Entomology, College of Agriculture)Revised 1/84/5
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