Conduziu-se este trabalho, com o objetivo de inventariar as plantas visitadas por abelhas em uma área de cerrado no município de Cassilândia/MS (19°06'48"S; 51°44'03"W), classificando-as para a elaboração de um catálogo de pasto apícola. Os dados foram obtidos quinzenalmente, de março/2003 a fevereiro/2004, em uma trilha com 3000 metros de extensão. A flora apícola foi representada por 49 espécies pertencentes a 41 gêneros e 26 famílias. A família Malpighiaceae apresentou maior número de espécies visitadas (12,2%) e a família Sapindaceae o maior número de abelhas coletadas (18%). Com relação ao nicho trófico ocupado pelas abelhas, apenas Apis mellifera e Trigona spinipes apresentaram atividade de forrageamento em um grande número de plantas, sendo 36,7% do total de espécies identificadas visitados pelas duas espécies. Os diferentes períodos de florescimento das espécies vegetais existentes no cerrado garantem oferta de recurso alimentar durante todo o ano.

Corn (Zea mays) is one of the world's main agricultural crops, and Spodoptera frugiperda (J. E. Smith) is its most important pest. In order to find natural controlling alternatives, this study aimed to determine the effect of plant oils on the feeding preference of first-and second-instar caterpillars. The experimental design was completely randomized in a 6 x 5 factorial combination (turmeric, clove, palmarosa, tea tree, common juniper, and neem oils) at five concentrations (0, 25, 50, 100, and 200 µL mL-1), plus a control consisting of acetone 100.0%, with five replicates per treatment. Twenty-five-day-old corn leaf sections received the corresponding treatments in addition to the control and were deposited along orthogonal axes in an arena arranged in Petri dishes. Ten 1 st instar caterpillars were released at the center of the plates, and results were obtained after 8h and 24h from the release, based on the number of caterpillars found on each treatment. For 1 st instar caterpillars, the best results were observed for clove and palmarosa, which negatively influenced caterpillar feeding activity in both evaluation periods, followed by turmeric oil, which showed the same effectiveness in the last period only. For second-instar caterpillars, the best effects were observed for neem, turmeric, palmarosa, and clove oil in the first evaluation period. Furthermore, the effectiveness of the first three oils was maintained in the second evaluation period. These results emphasize the potential capability of plant oils when used in management programs against this pest, in which the oils of turmeric, clove and palmarosa showing the best controlling potential of this pest from the lowest concentration corresponding to 25 µL mL-1 .

High quality forest seedlings are essential for the implementation of a commercial forest system, and it is therefore necessary to study their development in different environments, seeking to identify the most favorable environment for their production. In view of the above, the purpose of this essay was to evaluate the production of quamwood seedlings in different environments and workbenches with reflective material. The study was conducted at the State University of Mato Grosso do Sul-Cassilândia-MS from August to November 2017, in a completely randomized design within each environment and the environments compared by the joint analysis of the data. At the opportunity, produced quamwood seedlings under shade levels of 0% (full sun), 30% under sombrite, 35% under thermo-reflective screen and the agricultural greenhouse with thermo-reflective screen under the film with 42/50% shading. In the interior of each environment the seedlings were placed on cultivation benches with reflective material (aluminum paper) and without reflective material. The environments were compared by the joint analysis, and the results of molt height and lap diameter were measured at 30, 55 and 72 days after transplanting. The experiment was completed at 72 days after transplanting and the destructive analysis of the seedlings was performed, subjecting them to drying in a forced ventilation oven until reaching a constant dry mass. Based on the results obtained, the total dry mass, height and diameter ratio, root dry mass ratio and dry mass root system, absolute growth rate and Dickson quality index were calculated. The protected environments were favorable to the formation of paricá seedlings. The environment in full sun formed small, but more rustic seedlings. The use of reflective material had a positive effect only in the plastic coverage environment with 42/50% shading screen.

O estudo foi desenvolvido com o objetivo de determinar a eficácia do extrato etanólico de própolis (EEP) e óleo de nim (Azadirachta indica L.) no controle dos fungos Lasiodiplodia theobromae e Colletotrichum gloesporioides, principais patógenos que acometem os frutos da manga (Mangifera indica L.). O método compreendeu o desenvolvimento colonial desses fungos em meio de cultura batata-dextrose-ágar (BDA), acrescido das referidas substâncias, em diferentes concentrações. O delineamento experimental foi inteiramente casualizado (DIC) em esquema fatorial 2 x 6: dois extratos (própolis e óleo de nim) e seis concentrações de aplicação (0, 4, 8, 16, 32 e 64 mL L-1), com cinco repetições. Paralelo aos testes, foi estabelecido um tratamento com fungicida para comparação das médias. O desenvolvimento dos fungos nos diferentes tratamentos foi determinado através do crescimento micelial da colônia (média de duas medidas diametralmente opostas) obtido após 24, 48 e 96 h de inoculação do fungo. Apenas o óleo de nim na maior concentração testada apresentou eficácia no controle dos fungos L. theobromae e C. gloesporioides, tornando-se uma opção viável nos tratamentos alternativos podendo ser utilizado nos programas de manejo integrado.