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RESUMOPassiflora quadrangularis L. é uma espécie originária do neotrópico, conhecida no Brasil como maracujá-melão devido ao tamanho e formato dos seus frutos. Tem sido amplamente disseminada nas regiões tropicais do mundo onde é produzida em pequena escala para comercialização dos frutos, o que ocorre bem próximo às regiões de cultivo, em função da dificuldade de conservação pós-colheita. As plantas são trepadeiras bastante vigorosas, com flores abundantes, grandes e perfumadas, o que amplia o seu valor e a torna particularmente interessante para caramanchões e cercas-vivas. O uso efetivo de passifloras no mercado de plantas ornamentais depende de estudos da fenologia floral. Neste trabalho foram estudadas algumas características da fenologia floral e o perfume das flores de P. quadrangularis, sob cultivo protegido. São apresentados os dados relativos ao período de floração, picos de florescimento e intensidade relativa das flores, bem como algumas características do perfume floral. Conclui-se que a espécie representa uma nova alternativa de cultivo para fins ornamentais, por apresentar múltiplas flores em antese simultânea, abundantes, grandes, fragrantes e coloridas, com longo período de floração no ano, além de frutos comestíveis, folhas exuberantes e medicinais que oferecem amplo sombreamento para áreas externas de lazer e/ou outras plantas cultivadas. Palavras-chave: Passifloraceae, Badea, ornamental, fragrância floral.ABSTRACT Passiflora quadrangularis L. it's a neotropical species, commonly known in Brazil as the melon passion fruit due to the size and format of its fruits. Currently, it has been widely disseminated throughout the tropics and it is commercially produced on a small scale, but mostly locally consumed because the fruits bruise easily when shipped. The plants of P. quadrangularis are vigorous climbers with abundant foliage and big beautiful scented flowers for which its use as ornamental plant seems particularly interesting. It has been stipulated that for the effective use of passion flowers in the ornamental plant market, studies need to be done on the flowering phenology. For this reason, we investigated some features regarding the flowering phenology and the composition of the scent produced by the flowers of P. quadrangularis cultivated at greenhouse. We present data concerning to the flowering period, blossom pick, relative blossom intensity and some characteristics of the flower scent. We conclude that P. quadrangularis represents a novel alternative as an ornamental plant in Brazil, because it's abundant, big, scented, colorful, anthesis-simultaneous and flowers with long period of blossom. Also because it´s edible fruit and the medicinal properties of the exuberant foliage that could offer a nice shading for outdoor leisure areas and/or shade plants.

RESUMENSe estudió la eficacia de juveniles infectivos (JI) de Steinernema sp. JCL024 y Heterorhabditis sp. SL0708 sobre adultos y ninfas de Collaria scenica Stal bajo condiciones de invernadero. Se evaluaron 5 dosis (2, 16, 78, 160 JIs)/cm 2 foliolo) para cada nematodo. El experimento fue observado durante 21 días cada 24 horas, realizando el conteo de mortalidad y valoración del daño del pasto kikuyo. Las chinches presentaron 100 % de mortalidad después de 15 días. Cada chinche produjo en promedio 13.000 JI/6 días. En cuanto al daño, no alcanzó el nivel 2 en los 21 días respecto al tratamiento sin nematodos que presentó daño 3 con necrosis y enrollamiento apical de las hojas. Por ende, Steinernema sp. JCL024 y Heterorhabditis sp. SL0708 ejercieron control en la chinche de los pastos y mantuvieron bajo el daño en el follaje.Palabras clave: control biológico, juvenil infectivo, Steinernema sp., Heterorhabditis sp., Pennisetum clandestinum Control of pasture Collaria scenica bug (Hemiptera: Miridae) with entomopathogenic nematodes in greenhouse ABSTRACTWe studied the efficacy of infective juveniles (IJ) of Steinernema sp. strain JCL024 and Heterorhabditis sp. strain SL0708 on adults and nymphs of Collaria scenica under greenhouse conditions. Five doses were evaluated (2, 16, 78, 160 IJ) cm -2 leaf) for each nematode. The experiment was evaluated for 21 days every 24 hours, making mortality counts and assessment of damage on Kikuyo grass. The bugs showed 100% mortality after 15 days. Each bug produced an average of 13,000 IJ/6 days. As for the damage did not reach level 2 within 21 days prior to treatment without nematodes that damage introduced 3 with necrosis and apical leaf curl. Thus, Steinernema sp. strain JCL024 and Heterorhabditis sp. strain SL0708 exercised control bug on the grass and kept under the level of damage to the foliage.

El presente trabajo se desarrollo con el objetivo de evaluar o efeito insecticida del extracto etanólico de semillas de Neem (Azadirachta indica A. Juss) sobre ninfas de la chinche de los pastos Collaria scenica Stal. Para eso, se elaboró un extracto a partir de frutos inmaduros de Neem mediante rotaevaporación. El extracto fue diluido en tres concentraciones de ppm que corresponden a los tratamientos. Por medio de cromatografías en capa delgada se determinó la presencia de Azaridactina. Se realizó un experimento DCA de 4 tratamientos y 5 repeticiones que incluyó las tres concentraciones del extracto y un control. En cada repeticion se usaron 15 ninfas, colocadas aleatoriamente en cajas plásticas herméticas con alimento y la concentración correspondiente. Diariamente se realizó una aplicación del extracto y se registró porcentaje de mortalidad, número de exuvia y número de individuos que llegaron al estado adulto en cada tratamiento. Los resultados fueron analizados con prueba Kruskal-wallis y Games-Howell para cada variable. Las tres concentraciones del extracto de semillas de Neem presentaron un efecto negativo sobre el desarrollo de las chinches. El tratamiento más concentrado (250ppm) fue el más eficaz presentando una mortalidad del 97%, menor número de exubias y menor número adultos al final del ensayo. Insecticide Effect of Neem (Azadirachta indica A. Juss) Seed Extract against Collaria scenica Stal (Hemiptera: Miridae) Abstract. This work was developed with the objetive to evaluate the insecticidal effect of the Neem (Azadirachta indica A. Juss) seeds against grass bug nymphs Collaria scenica Stal. For that, an extract was prepared from green fruits of Neem by rotaevaporación. The extract was diluted in three ppm concentrations corresponding to treatments. Using thin-layer chromatography we identified the presence of Azaridactina. DCA essay was carried out with 4 treatments and 5 repetitions that included the three extract concentrations and a control. In each repetition were used 15 nymphs, randomly placed in plastic boxes with food and the corresponding concentration. Every day an extract application was made and recorded mortality percentage, number of exuviae and number of individuals who came to adulthood in each treatment. The results were analyzed using Kruskal-Wallis and Games-Howell for each variable. The three concentrations of Neem seed extract had a negative effect on the development of the bugs. The more concentrated treatment (250 ppm) was the most effective, showing a 97% mortality, fewer exuvias and and fewer adults in the end of the experiment.

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