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Clover cutworm

Clover cutworm

Discestra trifolii

A species of Discestra, Also known as Moth

This is a small to medium (wingspan 33–39 mm) species with cryptically coloured forewings, varying from light to dark brown, sometimes with a reddish tinge. The most characteristic feature is a distinctively "W"-shaped, white subterminal line. This feature is seen on some other noctuids, but usually much larger species. The hindwings are grey or buff, darker towards the termen, and marked with dark veins.

General Info About Clover cutworm
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Attributes of Clover cutworm
Colors
Brown
Black
Gray
White
Habitat
Ruderal area; field edge; embankment; roadside; coastal sand dune; warm lowland
Adult Food Sources
Flower nectar, honeydew, sap, fruit juices, pollens
Larva Food Source
Clover, alfalfa, soybeans, sugar beets, peanuts
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Siphoning mouthparts
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Distribution Area of Clover cutworm
It is found in the Western Palearctic (western Europe, Tunisia, Iran), Niger, and Quebec in North America. In the north of its European range it is a summer migrant, not being able to survive the cold winters.
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Life Cycle of Clover cutworm
Egg Laid singly or in clusters, the eggs of clover cutworm are minute and typically round. The color may vary, often starting as pale and becoming darker as development progresses.
Larva Emerging from the egg, clover cutworm larvae are elongated with distinctive chewing mouthparts for feeding. They grow through successive molts, changing size, and sometimes color, with each instar.
Pupal The clover cutworm transforms inside a cocoon or pupal case. This stage is characterized by significant metamorphosis, with internal reorganization into the adult form. The pupa is immobile and may be camouflaged.
Adult Emerging from the pupa, the adult clover cutworm’s development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction.
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Interesting Facts About Clover cutworm
When threatened, clover cutworm can produce ultrasonic clicks to jam the echolocation of predatory bats, remarkably reducing the likelihood of being caught.
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Scientific Classification of Clover cutworm
Tips for Finding Clover cutworm
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Youth Habitat of Clover cutworm
Agricultural and Cultivated Areas, Grasslands and Prairies
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Adult Habitat of Clover cutworm
Agricultural and Cultivated Areas, Grasslands and Prairies, Forests and Woodlands, Urban and Suburban Areas
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When is the Best Time to Observe Clover cutworm
Nighttime is the most suitable time to find clover cutworm, as this is when moths are generally the most active and are attracted to light sources.
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What is the Best Weather to Observe Clover cutworm
Warm and humid conditions are often the most suitable for moth activity; however, the weather should not be rainy or too windy, as this can decrease clover cutworm's activity levels.
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How and Where Can You Find Clover cutworm at Different Life Stages
Egg Clover cutworm eggs are typically laid on host plants. To locate them, inspect the undersides of leaves and along stems of potential host plants, especially during clover cutworm's breeding season.
Larva Clover cutworm larvae (caterpillars) are often found on or near their food plants. Look for signs of feeding damage on leaves, and inspect both the tops and undersides of leaves for the presence of caterpillars.
Pupal Clover cutworm pupae are usually concealed in cocoons or buried in the soil near the host plants. Search the area around the base of host plants and gently dig into the top layer of soil to find them. Take care not to disturb them too much.
Adult Clover cutworm adults can be located by setting up light traps at night, as they are attracted to bright sources of light. Alternatively, bait traps with sweet, fermented substances can also be effective in luring them.
Are Clover cutworm harmful?
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Harmful Effects of Clover cutworm
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Agricultural Pests

Clover cutworm larvae inflict damage primarily by eating leaves and stems, leading to defoliation, reduced photosynthesis, and vigor. Mild infestations may cause little noticeable damage, while severe outbreaks can result in significant crop loss and economic impact on the cultivation of beans, lettuce, and asparagus.

More Effects of Clover cutworm

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