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In this study, we report the occurrence of Selenisa sueroides (Guenée, 1852) in soybean crops in Brazil. S. sueroides worms were observed defoliating soybean crops in the municipality of Itaporã, state of Mato Grosso do Sul. The occurrence of this species has also been reported in the cities of Laguna Carapã, Itaquiraí, Dourados, Aral Moreira, and...
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... were sent to the Laboratory of Applied Entomology of Universidade Federal da Grande Dourados (UFGD), maintained in rearing facilities at 25±2ºC, 70±10% relative humidity, and photoperiod of 12 hours in order to obtain adults. They were kept in plastic contain- ers (100 mL) and fed soybean leaves variety BMX Potência until reaching the pupal phase (Fig. 2).The adults (Fig. 3) obtained were maintained in cylindrical polyvinyl chlo- ride (PVC) cages (15×22 cm) and fed a 10% honey solu- tion in an attempt to rear the species under laboratory con- ditions, which was unsuccessful. The duration of the pupal phase was 15 days (n=7 pupae), and adult life span, 16 to 18 days (n=5 ...
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Citations
This study reports the first occurrence of legume caterpillar moth Selenisa sueroides (Guenée) (Lepidoptera: Noctuidae) attacking soybeans in northern Brazil, being the second record in this crop in the country. This report resulted from periodic monitoring of soybean pests and natural enemies using the beat cloth in the region of Paragominas, state of Pará, during the 2015-2017 seasons. The presence of S. sueroides larvae was recorded in all crop seasons, and in the latter higher infestations were observed and required chemical control in some areas. Population surveys of S. sueroides in soybeans will be continued in the following seasons for monitoring its occurrence and expansion in the region. Basic research on the insect biology and host preference is highly encouraged since this information is still lacking for the Brazilian conditions.Ocorrência de lagarta das leguminosas em soja no norte do BrasilResumo: Este estudo reporta a primeira ocorrência da lagarta-pinça Selenisa sueroides (Guenée) (Lepidoptera: Noctuidae) atacando plantas de soja no norte do Brasil, sendo seu segundo registro de ocorrência na cultura no país. O relato de sua ocorrência é proveniente de monitoramentos periódicos de pragas e inimigos naturais de soja por meio de batida de pano na região de Paragominas, estado do Pará, durante as safras 2015-2017. A presença de lagartas de S. sueroides foi registrada em todas as safras, sendo que na última safra altas infestações foram observadas, necessitando controle químico em algumas áreas. Levantamentos populacionais de S. sueroides em soja serão continuados nas safras seguintes para monitorar sua ocorrência e expansão na região. Pesquisa básica sobre a biologia e preferência hospedeira do inseto é altamente recomendada, uma vez que essas informações ainda estão faltando para as condições brasileiras.
