Espécies de Trichogramma (Hymenoptera: Trichogrammatidae) coletadas em armadilha de sucção em reserva florestal

Querino, Ranyse B.; Zucchi, Roberto A.

doi:10.1590/s1519-566x2004000400009

Cited by 4 publications

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“…The inverse correlation of M . transvaalensis adult numbers captured with precipitation was similar to that reported for the decrease of Trichogramma (Hymenoptera: Trichogrammatidae) species numbers collected with increasing precipitation in Piracicaba, São Paulo state, Brazil 41 . This may be related to environmental resistance with physical and biological factors reducing insect population growth and climatic variables such as temperature and seasonal rainfall affecting these population structures 42 .…”

Section: Discussionsupporting

confidence: 84%

Megastigmus seed wasp damage on native Schinus terebinthifolia drupes in ecological restoration area in Brazil

Ghiotto

Prado

Giuliani

et al. 2019

Sci Rep

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Megastigmus transvaalensis Hussey (Hymenoptera: Torymidae) parasitizes drupes of Rhus genus plants in Africa and Schinus (Anacardiaceae) in South America. This exotic wasp damages Schinus terebinthifolia Raddi drupes in native forests and ecological restoration areas in Brazil. The objective of the present study was to investigate the precipitation, temperature and relative humidity effects on M . transvaalensis flight activity, and to determine the parasitism rate and sex ratio of this wasp on S . terebinthifolia plants. The study was conducted with yellow sticky traps and S . terebinthifolia drupes collected in an ecological restoration area, from August 2014 to September 2015, in the Sorocaba municipality, São Paulo state, Brazil. Megastigmus transvaalensis populations were negatively correlated with maximum and minimum temperatures and precipitation, with population peaks at the end of May 2015, with 927 insects per evaluation (48.8 adults per trap). The M . transvaalensis sex ratio was higher in the laboratory (0.42) than in the field (0.08). The parasitism rate of S . terebinthifolia drupes by M . transvaalensis ranged from zero to 36.3% under natural environmental conditions. Megastigmus transvaalensis can be monitored with yellow sticky traps. Damage by M . transvaalensis in S . terebinthifolia drupes may decrease the germination of the seeds and the establishment of this plant in native and restoration ecological areas.

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Section: Discussionsupporting

confidence: 84%

Megastigmus seed wasp damage on native Schinus terebinthifolia drupes in ecological restoration area in Brazil

Ghiotto

Prado

Giuliani

et al. 2019

Sci Rep

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Note: Flight capacity, parasitism and emergence of fiveTrichogramma (Hymenoptera: Trichogrammatidae) species from forest areas in Brazil

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A re-examination of Tuta absoluta parasitoids in South America for optimized biological control

et al. 2019

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We conducted a review of published information on Tuta absoluta parasitoids for the Neotropical region to (1) corroborate species records, (2) analyze associations including the T. absoluta, other insect and plant hosts and (3) identify research directions for enhancing their use as biological control agents. The literature review shows more than 50 species or morphospecies of Hymenoptera associated with T. absoluta, but less than a half (23) could be confirmed as parasitizing T. absoluta. Erroneous reports or invalid names of species, two new species records were found. Over a 100 pests and non-economically important insect and cultivated and non-cultivated plants directly or indirectly interact with T. absoluta in the region. Four T. absoluta parasitoid species include in their host range predatory insects or act as hyperparasitoids, a negative feature considered for a biological control agent. Five larval parasitoids have a narrow host range and could be considered for classical biological control programs in the areas of new invasion. Six Trichogrammatidae species are commercially used in various countries; of those, T. minutum and T. pretiosum are considered to be moderately generalist, being able to exploit several insect hosts. Apart from Apanteles gelechiidivoris and Pseudapanteles dignus, other native species have been the subject of field studies as biological control agents. The review presented here provides useful insights for identifying species that deserve further evaluation as T. absoluta biological control agents through augmentative or conservation strategies in South America, as well as for potential classical biological control programs in other continents. Keywords Taxonomy • Parasitoid ecology • South American tomato pinworm • Host range • Food webs Key message• We provide a review of published records on Tuta absoluta parasitoids of the Neotropics. • From more than 50 parasitoid species or morphospecies reported, only 23 hymenopteran species were confirmed as T. absoluta natural enemies. • Other insect hosts, their host plants and the current knowledge on their potential as biological control agents were tracked. • The low number of available parasitoids and those thathave not yet been identified suggest that much work remains for optimizing the existing biological control services provided by T. absoluta parasitoids.Communicated by M. Traugott.SPECIAL ISSUE 2019: The South American tomato pinworm Tuta absoluta: recent advances in management methods against the background of an ongoing worldwide invasion.

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Espécies de Trichogramma (Hymenoptera: Trichogrammatidae) coletadas em armadilha de sucção em reserva florestal

Cited by 4 publications

References 1 publication

Megastigmus seed wasp damage on native Schinus terebinthifolia drupes in ecological restoration area in Brazil

Megastigmus seed wasp damage on native Schinus terebinthifolia drupes in ecological restoration area in Brazil

Note: Flight capacity, parasitism and emergence of fiveTrichogramma (Hymenoptera: Trichogrammatidae) species from forest areas in Brazil

A re-examination of Tuta absoluta parasitoids in South America for optimized biological control

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