Lady beetle (pest species)
While most species of the family Coccinellidae are beneficial predators, the subfamily Epilachninae consists of harmful phytophagous insects. These lady beetles act as significant pests by feeding on various plant tissues, which can cause severe economic losses in vegetable production.
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Scymnus nanus
Scymnus nanus
Scymnus nigrinus
Scymnus nigrinus
Scymnus nubes
Scymnus nubes
Scymnus nubilus
Scymnus nubilus
Scymnus ornatulus
Scymnus ornatulus
Scymnus pallidivestis
Scymnus pallidivestis
Scymnus plebejus
Scymnus plebejus
Scymnus puncticollis
Scymnus puncticollis
Scymnus quadrillum
Scymnus quadrillum
Scymnus roseicollis
Scymnus roseicollis
Scymnus rubromaculatus
Scymnus rubromaculatus
Scymnus scapuliferus
Scymnus scapuliferus
Scymnus sordidus
Scymnus sordidus
Scymnus soudanensis
Scymnus soudanensis
Scymnus subvillosus
Scymnus subvillosus
Scymnus suturalis
Scymnus suturalis
Scymnus syriacus
Scymnus syriacus
Scymnus terminatus
Scymnus terminatus
Scymnus trepidulus
Scymnus trepidulus
Semiadalia
Semiadalia
Semiadalia undecimnotata
Semiadalia undecimnotata
Serangium
Serangium
Serangium montazerii
Serangium montazerii
Serangium parcesetosum
Serangium parcesetosum
Seven-spot ladybird
Coccinella septempunctata
Sirex woodwasp
Orcus
Six-spotted ladybug
Cheilomenes sexmaculata
Sixteen-spot ladybird
Tytthaspis sedecimpunctata
Spilocaria
Spilocaria
Spilocaria bissellata
Spilocaria bissellata
Spotted lady beetle
Coleomegilla maculata
Spotted lady beetle (Epilachna)
Henosepilachna guttatopustulata
Spotted potato ladybird
Henosepilachna sparsa
Squash lady beetle
Epilachna borealis
Squash ladybird
Epilachna paenulata
Steelblue ladybird
Halmus chalybeus
Stethorus
Stethorus punctillum
Stethorus
Stethorus picipes
Stethorus
Stethorus punctum
Stethorus
Stethorus
Stethorus gilvifrons
Stethorus gilvifrons
Stethorus japonica
Stethorus japonica
Stethorus nanus
Stethorus nanus
Sticholotis
Sticholotis
Sticholotis madagassa
Sticholotis madagassa
Synharmonia
Synharmonia
Tea moth
Thea
Ten-spotted ladybird
Adalia decempunctata
Thea bisoctonotata
Thea bisoctonotata
Thea variegata
Thea variegata
Thirteen-spot ladybird
Hippodamia tredecimpunctata
Transverse ladybird
Coccinella transversoguttata
Twelve-spotted leaf beetle
Epilachna dodecastigma
Twenty-eight-spotted potato ladybird
Epilachna vigintioctopunctata
Twenty-four-spot ladybird
Subcoccinella vigintiquatuorpunctata
Twenty-two-spot ladybird
Thea vigintiduopunctata
Twenty-two-spot ladybird
Psyllobora vigintiduopunctata
Two-spot ladybird
Adalia bipunctata
Tytthaspis
Tytthaspis
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Lady beetle (pest species)
These insects belong to the order Coleoptera and the family Coccinellidae. Unlike their predatory relatives that control aphid populations, these specific beetles have evolved to consume plant material, making them an important target for agricultural pest management strategies.
They mainly attack solanaceous crops such as potatoes, tomatoes, and eggplants, as well as various cucurbits. The damage manifests as skeletonized leaves, where the beetles and their larvae scrape away the epidermis, leaving only the veins behind, which severely stresses the plant.
The life cycle involves egg, larval, pupal, and adult stages. Females lay clusters of eggs on the underside of leaves. The larvae are often characterized by branched spines and are highly destructive, as they consume the leaf tissue voraciously, often resulting in complete defoliation if left unchecked.
Effective management includes integrated pest management (IPM) techniques. Cultural practices such as removing crop residues, rotating crops, and weeding are essential. In cases of high infestation, chemical control with appropriate insecticides is necessary to prevent significant yield losses during the growing season.