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Natural enemies recovered from Spodoptera frugiperda JE Smith (Lepidoptera: Noctuidae) larvae infesting the cartridge, ear and stem of corn plants under conventional and organic farming systems in Brazil
被引:0
|作者:
da Silva, Rafael B.
[1
]
Cruz, Ivan
[2
]
Figueiredo, Maria de Lourdes C.
[3
]
Redoan, Ana carolina M.
[2
]
Shimbori, Eduardo M.
[4
]
Tavares, Wagner de S.
[5
]
Dias, Angelica Maria P. M.
[6
]
机构:
[1] Ctr Univ Sete Lagoas, Dept Ciencias Biol, Programa Posgrad Biotecnol & Gestao Inovacao, Ave Marechal Castelo Branco 2765, BR-35701242 Sete Lagoas, MG, Brazil
[2] Embrapa Milho & Sorgo, Rodovia MG 424 Km 45,Caixa Postal 151, BR-35701970 Sete Lagoas, MG, Brazil
[3] Inst Mineiro Agr, Coordenadoria Reg Patrocinio, Ave Joao Alves Nascimento 1353,3 Andar, BR-36740000 Patrocinio, MG, Brazil
[4] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Ave Padua Dias 11,Caixa Postal 9, BR-13418900 Piracicaba, SP, Brazil
[5] PT Itci Hutani Manunggal IHM, Balikpapan 76114, East Kalimantan, Indonesia
[6] Univ Fed Sao Carlos, Dept Ecol & Biol Evolut, Rodovia Washington Luiz,Km 235,Caixa Postal 676, BR-13565905 Sao Carlos, SP, Brazil
来源:
关键词:
cropping system;
fall armyworm;
natural enemy;
biological control;
corn field;
FALL ARMYWORM LEPIDOPTERA;
ZEAMAIS COLEOPTERA-CURCULIONIDAE;
J;
E;
SMITH;
CAMPOLETIS-FLAVICINCTA;
ANNOTATED CHECKLIST;
CROTALARIA-JUNCEA;
HYMENOPTERA CHALCIDOIDEA;
POPULATION-DYNAMICS;
1ST REPORT;
MAIZE;
D O I:
10.1590/0001-3765202320200042
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
The corn cropping system can influence the natural enemy identity and the number of Spodoptera frugiperda J.E. Smith, 1797 (Lepidoptera: Noctuidae) individuals infesting the cartridge, ear and stem of this plant. The objectives were to identify the S. frugiperda natural enemies and differences in the number of individuals infesting the cartridge, ear and stem of corn plants under conventional and organic cropping systems, in Brazil after an initial collection of adult males through semiochemical traps. We also evaluated key morphometrical parameters of the larva and factors contributing with the viability of S. frugiperda. A total of 16 and 136 adult males was trapped, and 1,124 and 1,112 larvae was recovered from conventional and organic systems with 4.7 and 6.7% of them parasitized by dipteran and hymenopteran, respectively. Most of the parasitoids recovered had occurrence in both cropping systems, except Cremastinae and Ophion flavidus Brulle, 1846 (Hymenoptera: Ichneumonidae), which were recorded only in organic and Campoletis sp. (Hymenoptera: Ichneumonidae) only in conventional corns. The number of parasitoids recovered was similar in corn plant samples between both cropping systems. A total of 152 and 31 larvae was recovered from corn ears under conventional and organic systems, respectively. Doru luteipes (Scudder, 1876) (Dermaptera: Forficulidae) was recovered from all samples under conventional system. The larva length was overall similar between cropping systems. Parasitism by dipteran and hymenopteran, infection by microorganisms, larva mortality by undetermined causes, and differences in viability of S. frugiperda stages were factors contributing with the supression of this pest. The new associations and parasitoids reported represent possibilities of expanding the biological control strategies to manage S. frugiperda in corn crops.
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