Planococcus spp. can cause losses close to 100% of the conilon coffee production in highly infested crops. It is a polyphagous pest that affects several cultures and can be present in host plants that appear spontaneously in the cultivation areas. In this context, the objective was to carry out the survey of weed hosts for mealybug in conilon coffee crops relating to the phenological stage of the culture. For this, the survey was carried out in two areas cultivated with conilon coffee in the northwest region of the state of Espírito Santo, Brazil. Weed collections were carried out monthly, in both locations, for a period of 12 months. 17 weed species were found, distributed within 9 different botanical families, being: Asteraceae, Malvaceae, Poaceae, Amaranthaceae, Cyperaceae, Solanaceae, Commelinaceae, Portulacaceae e Cucurbitaceae. Thus, Planococcus spp. it can stay and complete its cycle in weeds, being a source of inoculum that can contribute to infestations in the reproductive phase of the conilon coffee.

O plantio de mudas com alto padrão de qualidade é um dos pontos chaves para o sucesso da cafeicultura. O objetivo deste trabalho foi quantificar as limitações causadas pelas dimensões dos tubetes plásticos, em altura e diâmetro, sobre o crescimento e a qualidade de mudas clonais de cafeeiro Conilon. O experimento foi conduzido em viveiro de produção de mudas na Fazenda Experimental de Marilândia (Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural – Incaper). O experimento seguiu um esquema fatorial 2×4, combinando duas alturas (18 e 22 cm) e quatro diâmetros (25, 32, 50 e 75 mm) de tubetes plásticos, totalizando 8 tratamentos que foram distribuídos em delineamento inteiramente casualizado, com quatro repetições. Para a multiplicação assexuada, foi utilizada a técnica de estaquia, coletando-se secções medianas de ramos ortotrópicos de brotações de plantas matrizes. Após o preparo das estacas, as mesmas foram plantadas nos tubetes de diferentes dimensões. Características de crescimento, produção de biomassa, fotossíntese e qualidade das mudas foram avaliadas aos 165 dias após a estaquia. Observou-se que as limitações das dimensões dos tubetes, em altura e em diâmetro, causaram perdas no crescimento, na produção de biomassa e na qualidade das mudas de cafeeiro Conilon, chegando a causar perdas de até 82,3% na área foliar total, 74,2% na matéria seca total e 28,6% no índice de qualidade. Pode-se concluir que as dimensões dos tubetes podem influenciar o desenvolvimento das mudas, tanto a altura quanto o diâmetro dos tubetes apresentam efeitos significativos. Parece haver um efeito mais limitador causado pela diminuição do diâmetro do tubete do que pela diminuição da sua altura, considerando o intervalo amostrado para ambos os fatores.

O objetivo deste trabalho foi avaliar a eficiência técnica da colhedora automotriz de hastes vibratórias em lavouras de café conilon (Coffea canephora) e sua influência nos custos de colheita.  Os ensaios foram realizados em lavoura comercial, com espaçamento de 3,50 x 0,50 m. Nos ensaios foram comparadas a velocidade de colheita (1,0; 1,6 e 2,0 km h-1), a frequência de vibração (700, 800 e 900 rpm) e o número de passadas da colhedora (primeira, segunda e única). Eficiência de derriça (ED) e de colheita (EC), percentual de frutos perdidos no chão (FPC) e não derriçados (FND) e desfolha foram medidos nos clones bamburral e 153/143. O custo operacional horário da colheita mecanizada foi calculado a partir dos custos fixos e variáveis. O custo total da colheita mecanizada foi obtido pelo somatório dos custos de colheita, repasse de solo e planta e perdas no chão. O aumento da velocidade e a redução da frequência e do número de passadas reduziram a ED e EC e aumentaram os FND dos clones em estudo. O uso da colhedora de café apresentou custo operacional de R$ 279,21 h-1, sendo 49% fixo e 51% variável, enquanto o manual foi de R$ 15,30 por saco (80 L). Observou-se uma redução no custo da colheita mecanizada de 33 a 50% em relação a colheita manual, com uma velocidade de 0,60 e 2,00 km h-1. O aumento da velocidade e da eficiência de colheita da máquina automotriz reduziram o custo total e unitário da colheita em relação à manual.

The damage caused by the citrus mealybug attack, Planococcus spp., on Coffea canephora crops is becoming more and more frequent, and may cause losses close to 100%. Knowledge of aspects related to pest behavior and adoption of methods to monitor crop incidence are important tools for integrated pest management. Thus, the objective was to study the behavior of citrus mealybug along the phenological stages of C. canephora and to propose methods to monitor its occurrence in the crops. The study was carried out in an area consisting of adult C. canephora plants of the variety Diamante ES 8112. The study was carried out using four sampling methods: 1) soil and root sampling with a probe; 2) opening small trenches; 3) plagiotropic branches and 4) weed sampling. Evaluations were carried out monthly by checking and confirming the presence of citrus mealybug in the sampled regions. The information obtained was used to describe the behavior of citrus mealybug and to analyze the applicability of the monitoring methods studied. In the absence of the reproductive phase, citrus mealybug lodges in the root system of coffee and weeds, in the region close to the colon, moving to the aerial part of the plants (rosettes) at the beginning of the flowering of the crop. Probe sampling was not efficient, while opening small trenches is a difficult procedure and causes damage to the root system of the coffee tree. The sampling of plagiotropic branches and weeds allows the monitoring of citrus mealybug during all the phenological phases of C. canephora.

Chrysanthemum is one of the most important plants in the national and international market of ornamental plants since it has relevant commercial value and presents short cycle and extensive diversity of inflorescences and colors. The present work aimed to evaluate the productive performance of the Puritan cultivar grown in pots under different irrigation depths, in greenhouse conditions in the northwest region of Espírito Santo. The experiment was set up in a completely randomized design with 6 treatments defined by crop evapotranspiration daily replacements (ETc) of 50% 75%, 100%; 125%, 150% and 175%, with 20 repetitions (pots) each treatment. An auto compensating trickle irrigation system was used, a dripper per pot, discharging 1.3 liters per hour. The evaluations were made at 90 days after planting, when measurements of fresh and dry mass of roots, fresh and dry mass of shoot system, plant height, stem diameter, dry mass of the flowers and flowers diameter were performed. The analysis of variance at 5% probability, showed significant quadratic effect for the dry matter characteristics of the aerial part and height of the plant and significant linear positive effect for the other evaluated characteristics. Under the conditions of the study, daily replacements of 175% of the crop evapotranspiration, which corresponded to daily average depths of 12.25 mm, conferred the best results in all evaluated parameters.

The present work aimed to evaluate the productive performance of chrysanthemum cultivated in an open field under different irrigation depths. The experiment was conducted in a completely randomized design, consisting of 6 treatments with 20 repetitions each. The treatments consisted of different levels of irrigation, with daily replacement of 50, 75, 100, 125, 150 and 175% of the crop evapotranspiration (ETc). The ETc was determined daily by drainage lysimeters installed at the base of six pots, used as reference (100% ETc). For the application of the treatments an auto compensating trickle irrigation system was used, with a dripper per pot flowing 1.3 liters per hour. The evaluations were made at 90 days after planting, when measurements of fresh mass of shoot Original Research Article

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