Efeitos da radiação gama sobre os diferentes estágios de desenvolvimento da broca do café hypothenemus hampei Ferr., 1867 (Coleoptera scolytidae
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1973-10
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Manuel Passos de Castro
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An experiment was conducted at the -cENTRO D ENER - GIA NUCLEAR NA AGRICULTURA" of the Escola Superior de Agricultura "'Luiz de Queiroz- - USP - Piracicaba, são Paulo'i'Brazil to study the control of the coffee berry borer Hipohenemuó hampei Ferr., 1867, using gamma irradiation from a source of Cobalt 60. The lethal dosage necessary for the adults outside nd inside the grafns were 475 an 525 krad, respectively. It was also evident that there was absorption of radiation by the grains. For 1arve the lethal dose was 350 krad an for pupas 4)0 krad. A mixed group of the coffee berry boere were treated w1th 15 krad. The 1arve lived for 21 days; the pupae·15 however the adults were the most resitant 1iving for 60 after treatment. Up to now we have not made efforts to observe the
progeny, however steril dosage is greater tham 15 krad.
According to the results obtained it is concludede ' that the best range of treatment for the coffee berry borer is between 25 an 50 krad. Using that range adults were controlled in 36 days. The phases which do the most damage, larval adult. stopped eating 3 days after treatment.
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SILVA, Antônio Lopes da. Efeitos da radiação gama sobre os diferentes estágios de desenvolvimento da broca do café hypothenemus hampei Ferr., 1867 (Coleoptera scolytidae). Anais da Escola de Agronomia e Veterinária, Goiânia, v. 3, n. 1, p. 64-78, jan./dez. 1973. Disponível em: <https://www.revistas.ufg.br/pat/article/view/2032/1922>.