Harmful Effects of Walnut sphinx

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Home > Walnut sphinx > Harmful Effects of Walnut sphinx

Walnut sphinx

Photo By gcsnelling , used under CC-BY-4.0 /Cropped and compressed from original

Harmful Effects of Walnut sphinx

Amorpha juglandis

A species of Amorpha, Also known as Sphinx moth

Walnut sphinx larvae feed on walnut and butternut tree leaves, causing defoliation that reduces photosynthesis, impairs growth, and weakens the trees, making them more vulnerable to environmental stresses and secondary pests.

What Type of Pest Is Walnut sphinx?

Hurt Plant

Hurt Plant

Damage Stage

Larvae

Host Plants

Walnut (juglans) and butternut (juglans cinerea)

Host Plants Organs

Leaves

Damage Ways

Chew Plant Tissues

Damage Reason

Feeding

Damage Level

Mild to Severe

The larvae of walnut sphinx, while feeding on the leaves of walnut and butternut trees, chew through plant tissues. This defoliation leads to a reduction in photosynthetic area, impairing plant growth and potentially weakening the trees, which can make them more susceptible to environmental stresses and secondary pests.

More Insects that are Similar to Walnut sphinx

Titan sphinx

The wingspan is 6 - 7 cm . The body is dark brown with a wide white stripe across the abdomen. The wings are dark brown and the upperside of the forewing has a black spot at the end of the cell and two bands of translucent white spots. The upperside of the hindwing has pale patches along the costa and inner margin.

Mango hawkmoth

The wingspan is 13 - 17 cm .

Elibia dolichus

Elibia dolichus

Elibia dolichus is a moth of the family Sphingidae first described by John O. Westwood in 1847. It is found in Nepal, north-eastern India, Bangladesh, Thailand, southern China, Malaysia (Peninsular, Sarawak, Sabah), Indonesia (Sumatra, Kalimantan, Java) to the Philippines (Palawan Island).

Mournful sphinx

Mournful sphinx

The mournful sphinx (Enyo lugubris) most likely gets its name from the somber colors that make us think of a desert environment, with deep, dark browns. Other people think that it may be related to its droopy posture, but this is just speculation. The insect is also attracted to lights, meaning it flies and is difficult to spot during the nighttime.

Spurge hawk-moth

Spurge hawk-moth

The spurge hawk-moth (Hyles euphorbiae) earns its name from being a biological control agent of leafy spurge, which is considered to be an invasive plant. It lays eggs on the leaves of these plants, covering them in what has been called a "liquid gum" substance that keeps them sticky. Adults are brown and pink while the caterpillars are smooth and black.

White-Lined Sphinx

White-Lined Sphinx

The white-Lined Sphinx ( Hyles lineata) is a colorful furry moth with striped wings. It has a similar size of a hummingbird, and behaves like a hummingbird as well. It can fly extremely fast, and instantly swing from side to side while hovering just like a hummingbird. It feeds on nectar from a variety of flowers including petunia, honeysuckle, lilac, clovers, thistles, and jimson weed.

Bedstraw hawk-moth

Bedstraw hawk-moth

The bedstraw hawk-moth (Hyles gallii) flies throughout the night in search of meadows and mates. Their main caterpillar host, bedstraw, is where it gets its name. Otherwise, they are a beautiful combination of tan, red, and darker streaks of color. They enjoy living in warm locations, such as nearby plantations.

Southern pine sphinx

Southern pine sphinx

The wingspan is 50–57 mm. The forewing is grey with two or three black stripes in the middle of the wing. Other marking are vague.

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