Preferência alimentar do percevejo, barriga-verde, Dichelops furcatus (f.) em plantas de trigo em diferentes estádios fenológicos.

Editores técnicos: Joseani Mesquita Antunes, Ana Lídia Variani Bonato, Márcia Barrocas Moreira Pimentel

Preferência para oviposição e alimentação de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) por folhas de Eucalyptus benthamii de diferentes idades.

Resumo

Efeito de Eucalyptus spp na alimentação e excreção de honeydew de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae).

Resumo

Manejo integrado dos percevejos barriga-verde, Dichelops spp. em trigo.

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PO-0773: Reirradiation by extracranial stereotactic treatment: preliminary results of a dose escalation study

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Sustainable development goals and 2030 agenda: Awareness, knowledge and attitudes in nine Italian universities, 2019

Sustainable Development Goals (SDGs) and 2030 Agenda represent global development programs. Education can widen the acknowledgement of their relevance and their applications. This survey aims to assess awareness, knowledge and attitudes towards SDGs and sustainability among first-year students in nine Italian Universities. A Likert scale-based online questionnaire of 70 items was compiled by students from March to July 2019. It examined knowledge and expectations referred to sustainable development concepts, indicators and documents/models accounting for sociodemographic variables. Statistical analyses performed were Chi-square test, Fisher\u2019s Exact test, Kendall\u2019s W correlation coefficient, univariate and multivariate analysis. The questionnaire was completed by 1676 students. A low percentage referred a good knowledge of SDGs and 2030 Agenda, most of them had never attended related educational activities previously. Better knowledge of SDGs and 2030 Agenda was observed in case of previous specific educational activities (p < 0.001). The expectation towards university guaranteeing an education on SDGs was high, both for personal wisdom and for usefulness in future professional context. A significant difference (p < 0.001) in such expectations was found, as healthcare students were less interested than colleagues of other areas. The results showed low knowledge but interest towards sustainable development. A scheduled implementation of academic initiatives should be considered

Seletividade de atrazine e [paraquat + diuron] em Crotalaria spp. e controle de soja voluntária.

Resumo: Na sucessão soja-milho+crotalária, há dificuldade no controle da soja voluntária no consórcio. Por isso, objetivou-se neste estudo, identificar doses, épocas e modalidades de aplicação de atrazine e de [paraquat+diuron] em pré-emergência para o controle da soja voluntária seletivos para Crotalaria ochroleuca e Crotalaria spectabilis. Foi conduzido um ensaio para cada cultura com 12 tratamentos {testemunha sem aplicação, combinações de doses (250 g i.a ha-1 e 500 g i.a ha-1) e modalidades/épocas de aplicação de atrazine [pré-emergência (PRÉ), PRÉ e pós-emergência (PÓS) aos 14 dias ou 21 dias após a semeadura (DAS) e sequencial em PÓS aos 14 DAS e 28 DAS), além dos tratamentos de [paraquat+diuron] [500+250 g i.a ha-1] em PRÉ, associado ou não às duas doses de atrazine em PÓS aos 28 DAS]}. Apenas as aplicações sequenciais de atrazine em PÓS e as de 500 g i.a ha-1 de atrazine em PÓS aos 14 DAS e 21 DAS controlaram a soja voluntária. Entre esses tratamentos, C. spectabilis foi altamente suscetível a eles e apenas atrazine (500) PRÉ/atrazine (500) PÓS aos 21 DAS apresentou menor intoxicação de C. ochroleuca. Concluiu-se que apenas a aplicação atrazine (500) PRÉ/atrazine (500) PÓS aos 21 DAS pode ser aplicada em C. ochroleuca para o controle de soja voluntária. | Abstract: In the soybean-corn+crotalaria succession, there is difficulty in controlling volunteer soybeans in the intercropping. Therefore, the aim of this study was to identify doses, times and modalities of application of atrazine and [paraquat+diuron] in pre-emergence for the control of volunteer soybeans selective for Crotalaria ochroleuca and Crotalaria spectabilis. A trial was conducted for each crop with 12 treatments {control without application, dose combinations (250 g ai ha-1 and 500 g ai ha-1) and atrazine application modalities/times [pre-emergence (PRE), PRE and post-emergence (POST) at 14 days or 21 days after sowing (DAS) and sequentially in POST at 14 DAS and 28 DAS), in addition to treatments of [paraquat+diuron] [500+250 g ai ha-1] in PRE, associated or not with two doses of atrazine POST at 28 DAS]}. Only sequential applications of atrazine POST and 500 g ai ha-1 of atrazine POST at 14 DAS and 21 DAS controlled volunteer soybeans. Among these treatments, C. spectabilis was highly susceptible to them and only atrazine (500) PRE/atrazine (500) POST at 21 DAS showed less intoxication of C. ochroleuca. It was concluded that only the application of atrazine (500) PRE/atrazine (500) POST at 21 DAS can be applied for volunteer soybeans control in C. ochroleuca