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Broad-bean weevil

Broad-bean weevil

Bruchus rufimanus

A species of Bruchus, Also known as Broad bean weevil, Bean weevil, Broadbean Weevil

Bruchus rufimanus, commonly known as the broadbean weevil, broadbean beetle, or broadbean seed beetle is a leaf beetle which inhabits crops and fields, as well as some homes. It is a pest of faba beans (Vicia faba L.). The adult beetles feed on pollen, while their larvae tunnel in seeds destroying crops and moving on to new ones once they dry out. The adult beetle, being one of the biggest of its genus, ranges from 3 to 5 mm in length.

General Info About Broad-bean weevil
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Attributes of Broad-bean weevil
Colors
Brown
Black
Gray
White
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
The Broad-bean weevil is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Species Status of Broad-bean weevil
Common
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Predators of Broad-bean weevil Larvae
Birds, rodents, parasitic wasps, lady beetles, spiders
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Predators of Adult Broad-bean weevil
Birds, rodents, predatory beetles, spiders, mantises
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Interesting Facts About Broad-bean weevil
Broad-bean weevil's larvae deploy stealth by burrowing within seeds, undetected, as they consume vital nutrients meant for plant growth.
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Scientific Classification of Broad-bean weevil
Class
Bugs
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Order
Beetles
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Genus
Bruchus
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Tips for Finding Broad-bean weevil
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Youth Habitat of Broad-bean weevil
Agricultural and Cultivated Areas
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Habitat Preferences of Broad-bean weevil Through Different Life Stages
The adult broad-bean weevil can be found on and around their host plants, primarily legumes, during spring and summer. They are often seen mating on these plants. The larvae of broad-bean weevil, however, develop inside the seeds of legumes such as broad beans. To locate the larvae, one would search inside the seeds of these host plants. During the pupal stage, broad-bean weevil remains within the seed, so identifying the plant's seeds where the adult broad-bean weevil was present would be the approach for finding the pupae. Therefore, collecting seeds from these plants, opening them, and inspecting for the presence of larvae or pupae is essential for locating these stages.
Are Broad-bean weevil harmful?
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Are Broad-bean weevil harmful to humans?

Some colorful leaf beetles are actually toxic, and their beautiful appearance is warning predators: I am very dangerous, do not eat me! However, just observing with your eyes and touching the leaf beetle with your hand will not be poisoned.
Harmful Effects of Broad-bean weevil
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Agricultural Pests

Larvae of broad-bean weevil bore into bean seeds, causing direct damage that can range from mild to severe. Small infestations may go unnoticed, while more significant ones lead to considerable yield losses. The quality of affected beans deteriorates, impacting both farmers' income and food supply. In large numbers, this pest poses a real threat to legume crops.

More Effects of Broad-bean weevil

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