OCORRÊNCIA DE PARASITISMO EM LARVAS DE LIOGENYS SUTURALIS BLANCHARD, 1851 (COLEOPTERA: MELOLONTHIDAE) POR PTILODEXIA BRAUER &amp; BERGENSTAMM, 1889 (DIPTERA: TACHINIDAE)

Santos, Vanessa Pillon dos; Ávila, Crébio José

doi:10.1590/1808-1657v76p7452009

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…In Brazil, a reduction of 50% in the yield has been calculated for winter crops, while in maize this species reduced the yield by 100% (Santos and Ávila, 2007). Despite the vast yield loses experienced from 2004 to 2013 in Brazil, effective control pest management strategies have been poorly explored so far (Santos and Ávila, 2009b). In Argentina, where L. suturalis has been seen causing yield loses in soybean at least until 2013, cultural control of the pest avoiding early sown soybean (October) in affected fields combined with seed treatment was used in fields with larval population density reaching 20 larvae m −2 .…”

Section: Discussionmentioning

confidence: 99%

First report of Liogenys suturalis (Blanchard) (Coleoptera: Scarabaeidae: Melolonthinae) in Argentinian crops and the first report of damage on soybean

et al. 2021

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Liogenys Guérin-Méneville is one of the most species rich genera in the Scarabaeidae family endemic to South America. Some species of this genus are important rootfeeding pests of maize, soybean, wheat and oat in their larval stage. Prior to the present study, all known reports of damage caused by any Liogenys species were from Brazil. Since 2006 in Argentina white grubs of the genus Liogenys (not previsouly identified to species level) have been recorded causing a decrease in soybean yields. This research confirms that the Argentinian species is L. suturalis (Blanchard), an important pest already recorded in Brazil but associated with yield losses of maize crops instead of soybean. Taxonomical and biological data observed in Argentinian populations are presented. This is the first record of L. suturalis damaging soybean and its first report in Argentinian crops. K E Y W O R D S Diplotaxini, root-feeders, scarab beetles, soil pest species, white grubs Premier signalement de Liogenys suturalis (Blanchard) (Coleoptera : Scarabaeidae : Melolonthinae) sur cultures en Argentine et premier signalement de ses dégâts sur soja Liogenys Guérin-Méneville est un des genres comportant la plus grande diversité d' espèces au sein de la famille des scarabéoïdes (Scarabaeoidea). Il est endémique à l'Amérique du Sud. Certaines espèces de ce genre sont, au stade larvaire, d'importants organismes nuisibles rhizophage du maïs, du soja, du blé et de l'avoine. Précédemment à cette étude, tous les signalements connus de dégâts causés par des espèces de Liogenys provenaient du Brésil. Depuis 2006, en Argentine, des vers blancs du genre Liogenys (qui n' ont pas été précédemment identifiés au niveau de l'espèce) ont été signalés, provoquant une baisse des rendements de soja. Cette étude confirme que l'espèce responsable de ces dégâts en Argentine est L. suturalis (Blanchard), un organisme nuisible important, déjà signalé au Brésil mais associé dans ce pays à des pertes de rendement des cultures de maïs plutôt que de soja. Les données taxonomiques et biologiques observées dans les populations argentines sont présentées ici. Il s'agit du premier signalement de L. suturalis causant des dégâts sur soja, et de son premier signalement sur cultures en Argentine.

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Section: Discussionmentioning

confidence: 99%

First report of Liogenys suturalis (Blanchard) (Coleoptera: Scarabaeidae: Melolonthinae) in Argentinian crops and the first report of damage on soybean

et al. 2021

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Essential dependence on wild pollination service: a medicinal plant under threat Minthostachys verticillata (Lamiaceae)

Glinos

Condat

Mulieri

et al. 2019

Arthropod-Plant Interactions

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Occurrence of Phytophagous Scarabaeidae (Coleoptera) in a pasture area at the Balsamo municipality, São Paulo, Brazil

Menis

Rodrigues

2021

EntomoBrasilis

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Pasture areas have been decreasing over the years in Brazil, largely due to the expansion of agricultural areas, mainly in the Southeast region. Natural or planted pastures are subject to attack by insects that can become pests depending on their level of infestation and among them are the Scarabaeidae beetles. The scarce information on the species of this family existing in the region of Bálsamo (São Paulo) makes a study on the occurrence of these species necessary, thus generating data that can contribute to identification and information on possible existing pest species. During September 2018 to August 2019, collections of phytophagous Scarabaeidae species were done in pasture areas with a light trap. A total of 446 adults from the subfamilies Dynastinae, Melolonthinae and Rutelinae were collected. In Dynastinae the genera Bothynus, Coelosis, Cyclocephala, Chalepides and Actinobolus were collected, in Melolonthinae the genera Plectris and Liogenys and in Rutelinae the genera Anomala, Geniates, Leucothyreus, Lobogeniates, Byrsopolis and Trizogeniates were found. Among the species collected, some are described as pests in crops, including pastures, such as Liogenys suturalis Blanchard, which was the species that had the largest number of individuals during the collection period, being indicated as a species worthy of more detailed studies.

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OCORRÊNCIA DE PARASITISMO EM LARVAS DE LIOGENYS SUTURALIS BLANCHARD, 1851 (COLEOPTERA: MELOLONTHIDAE) POR PTILODEXIA BRAUER & BERGENSTAMM, 1889 (DIPTERA: TACHINIDAE)

Cited by 6 publications

References 5 publications

First report of Liogenys suturalis (Blanchard) (Coleoptera: Scarabaeidae: Melolonthinae) in Argentinian crops and the first report of damage on soybean

First report of Liogenys suturalis (Blanchard) (Coleoptera: Scarabaeidae: Melolonthinae) in Argentinian crops and the first report of damage on soybean

Essential dependence on wild pollination service: a medicinal plant under threat Minthostachys verticillata (Lamiaceae)

Occurrence of Phytophagous Scarabaeidae (Coleoptera) in a pasture area at the Balsamo municipality, São Paulo, Brazil

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