Data/hora: 17/06/2024 02:06:07

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 20/05/2024
Data da última atualização: | 20/05/2024
Autoria: | FOERSTER, L. A.; IEDE, E. T.; SANTOS, B. B.
Afiliação: | L . A. FOERSTER, UNIVERSIDADE FEDERAL DO PARANÁ; EDSON TADEU IEDE, CNPF; B. B. SANTOS, UNIVERSIDADE FEDERAL DO PARANÁ.
Título: | Efeitos do ataque de Epinotia aporema (WALSINGHAM, 1914) (Lepidoptera: Tortricidae) em diferentes períoos de desenvolvimento da soja.
Ano de publicação: | 1983
Fonte/Imprenta: | Anais da Sociedade Entomológica do Brasil, v. 12, n. 1, 1983.
Idioma: | Português
Conteúdo: | The effects of damage by the budworm Epinotia aporema (Wal singham, 1914) on the development and yield of soybeans were evali:i° ated on late-planted 'UFV-1' soybeans. The following exposure pe riods of l arval attack were establis hed, with the respective proportions of damaged plants at the e nd of each period : ve ge ta tive sta ge (83,57.), flowering (65 , 57.) , reproductive stage (45 , 07.), exposed throughout the cicle (86,77.) , and control (undamaged) . Larval attack during the vegetative stage caused r eductions in plant size and height of the first pod, and an increa se in the number of secondary branches , which compen sated for losses caused by larval attack in the main stem. Desp i te the comparat ively short period of damage during flo wering in relation to the other treatments, yields were lower with budworm damage during flowering , indicating that this is the most critica! stage of soybeans to the attack of the budworm . It is co n cluded that high levels of incidence of E. aporema during the vege ta tive stage and after pod-set do not advers.ely affect s oy bean yiel ds, while 407. - 507. of damaged plants c a.n be tolerated during flower ing without significant reductions in yield.
Thesagro: | Epinotia Aporema; Praga de Planta.
Thesaurus Nal: | Lepidoptera; Tortricidae.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1164331/1/AnSocEntomolBrasil-1983-Iede-et-al.pdf
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (58942-1) - UPC - AP - DD -  -  -  - DIS