Parâmetros biológicos e tabela de vida de fertilidade de Neopamera bilobata (Hemiptera: Rhyparochromidae) em morangueiro

Abstract

Resumo -O objetivo deste trabalho foi avaliar os parâmetros biológicos e determinar a tabela de vida de fertilidade de Neopamera bilobata (Hemiptera: Rhyparochromidae) em morangueiro. O experimento foi realizado no Laboratório de Entomologia da Embrapa Uva e Vinho, em Bento Gonçalves, RS, em câmara climatizada (a 23±1°C, 70±10% UR e fotófase de 12 horas). Utilizaram-se folíolos, flores, frutos verdes e maduros de morangueiro 'Aromas' como alimento para os percevejos. O desenvolvimento das fases imaturas e os parâmetros biológicos dos adultos foram monitorados diariamente. O percevejo N. bilobata não completou o ciclo biológico em folíolos e flores de morangueiro. Em frutos maduros e verdes, o tempo de desenvolvimento da ninfa ao adulto foi de 32,8±9,12 e 36,7±6,80 dias, com viabilidade de 27,3 e 51%, respectivamente. O período de oviposição foi de 34,7±21,2 dias, com 319,1±262,7 ovos em frutos maduros, e de 43,9±18,3 dias, com 318,2±144,7 ovos em frutos verdes. Neopamera bilobata completa seu ciclo biológico na cultura do morangueiro. Frutos verdes de morangueiro são mais adequados ao desenvolvimento deste inseto do que frutos maduros.Termos para indexação: Neopamera bilobata, Fragaria x ananassa, "catfacing", deformação dos frutos, pequenas frutas, percevejo. Biological parameters and fertility life table of Neopamera bilobata (Hemiptera: Rhyparochromidae) on strawberryAbstract -The objective of this work was to evaluate the biological parameters and to determinate the fertility life table of Neopamera bilobata (Hemiptera: Rhyparochromidae) on strawberry. The experiment was carried out in the Laboratory of Entomology of Embrapa Uva e Vinho, in Bento Gonçalves, RS, Brazil, in a climatic chamber (at 23±1°C, 70±10% RH, and 12-hour photoperiod). Leaflets, flowers, and green and ripe fruit of 'Aromas' strawberry were used to feed the insects. The development of immature stages and the biological parameters of adults were daily monitored. The bug N. bilobata did not complete the life cycle on strawberry leaflets and flowers. On mature and green fruit, the nymph-adult development time was of 32.8±9.12 and 36.7±6.80 days, with viability of 27.3 and 51%, respectively. The oviposition period was of 34.7±21.2 days, with 319.1±262.7 eggs on ripe fruit, and of 43.9±18.3 days, with 318.2±144.7 eggs on green fruit. Neopamera bilobata completes its biological cycle on strawberry crop. Green fruit of strawberry are more suitable for this insect development than ripe ones.

Chinese chives and garlic in intercropping in strawberry high tunnels for Neopamera bilobata Say (Hemiptera: Rhyparochromidae) control

“…In Brazil, the most important strawberry pests are aphids ( Chaetosiphon fragaefolii Cockerell and Aphis forbesi Weed), mites ( Tetranychus urticae Koch and Phytonemus pallidus Banks), and thrips Frankliniella occidentalis (Pergande) (Bernardi et al , 2015). Most recently, three species with high potential to become important pests have been reported as causing injuries and damage to strawberries fruits or plants: Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) (Deprá et al , 2014), Duponchelia fovealis (Zeller) (Lepidoptera: Crambidae) (Zawadneak et al , 2016), and Neopamera bilobata Say (Hemiptera: Rhyparochromidae) (Kuhn et al , 2014).…”

“…N. bilobata feeds on strawberry achenes and causes imperfections in fruits (‘catfacing’) (Bernardi et al , 2015). Although these insects feed on strawberry leaves, they complete their development only when feeding on green or mature strawberry fruits (Kuhn et al , 2014). The life of cycle of this species is completed within 42 days (egg-adult), and females lay up to 320 eggs (Bernardi et al , 2015).…”

Manejo integrado de pragas na cultura do morangueiro no sul de Minas Gerais

“…de Moraes (não publicado) em outra propriedade de Bom Repouso. Alta incidência de percevejo-do-fruto em morangueiro foi relatada no estado do Rio Grande do Sul por Kuhn et al (2014). O besouro Colaspis sp.…”

Environmental management strategies for pest control in strawberry crop

“…Drosophilidae), and beetles (Maecolaspis sp., reported as Colaspis sp., Coleoptera, Chrysomelidae-Eumolpinae) (Kuhn et al 2014, Dara 2016. The African-fig-fly, Zaprionus indianus Gupta is a primary pest of figs and a secondary pest of more than 70 other fruit species, always attacking preferably rotting fruits (Joshi et al 2014), for the difficulty of females to oviposit in undamaged fruits (Fartyal et al 2014).…”

“…The two-spotted spider mite (Tetranychus urticae Koch, Acari: Tetranychidae) has traditionally been considered one of its main pests in Brazil and elsewhere . Additionally, several other pests are considered important to the crop worldwide, such as thrips (Frankliniella occidentalis (Pergande), Thysanoptera: Thripidae); aphids (Chaetosiphon fragaefolli (Cockerell), Hemiptera: Aphididae); whiteflies (Trialeurodes vaporariorum (Westwood), Hemiptera: Aleyrodidae); bugs (Neopamera bilobata (Say), Hemiptera: Rhyparochromidae); flies (Drosophila suzukii (Matsumura), Diptera: Drosophilidae) and beetles (Maecolaspis sp., reported as Colaspis sp., Coleoptera, Chrysomelidae-Eumolpinae) (Kuhn et al 2014;Dara 2016.…”