Abundância e sazonalidade do ácaro-rajado em cultivares de gérbera

Sulzbach, Manuela; Ott, Ricardo; Schäfer, Gilmar; Ott, Ana Paula

doi:10.1590/0103-8478cr20131494

Cited by 3 publications

(4 citation statements)

References 21 publications

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“…Campos-Farinha (2006) reports that sucking insects are among the main arthropods that damage ornamental plants and can, on many occasions, be easily found associated with these plants. In addition to these insects, the spider mite is an important pest in ornamentals and potted flowers (Tamai et al, 2000, Feres et al, 2009Santos et al, 2010;Sulzbach et al, 2015). According the figure 2, December was the month with major number of infested plants (n= 17).…”

Section: Resultsmentioning

confidence: 99%

Plant infesting arthropods sold in supermarkets in the Federal District, Brazil

Castro¹,

Montalvão

2020

J. Biotechnol. Biodivers.

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Many Brazilian supermarkets offer ornamental and fruit plants for sale, and many become infested by insects and other arthropods during commercialization. This work reflects the importance of knowing the pests that occur in these plants, to verify possible dissemination of these arthropods to other areas. This study was carried out with monthly visits to five supermarkets chosen at random in the Federal District, Brazil. The plants were identified and visually inspected for the presence of insects and other arthropods. The collected specimens were preserved in jars containing 70% alcohol. Their respective levels of infestation and damage were also observed and noted. Each specimen collected was identified according to specific books and keys for each taxonomic group collected. As a result, 65 plants were found to be infested with insects and mites. Of these, 48 contained sucking insects (Hemiptera) and 17 had spider mites (Tetranychus urticae Koch). Although the insects found are relatively common and have already been reported to be associated with several ornamental plants, this is the first work that records the occurrence of arthropods in ornamentals sold in commercial establishments.

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Section: Resultsmentioning

confidence: 99%

Plant infesting arthropods sold in supermarkets in the Federal District, Brazil

Castro¹,

Montalvão

2020

J. Biotechnol. Biodivers.

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“…The Gerbera (G. jamesonii L. ) is one of the most important ornamental species for the cut flowers sector (Cardoso & Imthurn, 2018), and is traditionally known for its variety of colors and shapes (Bashandy et al, 2015). The flower is among the most commercialized cut flowers in the national market and its beauty causes consumer acceptance (Menegaes et al, 2015;Sulzbach et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Crop coefficient of cut gerbera with water supplementation in a protected environment

Piroli

Peiter

Robaina

et al. 2020

Agraria

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The determination of the crop coefficient (Kc) is vital since, although gerbera cultivation is constantly expanding, there is little research on the evapotranspiration of the crop cultivated under a protected environment to obtain the correct irrigation management. The objective of this work was to evaluate the evapotranspiration and crop coefficients of cut gerbera, cultivated in protected environment. The reference evapotranspiration (ETo) and crop evapotranspiration (ETc) were obtained through the Penman and weighing lysimetry methods, respectively. The experimental design used was completely randomized, consisting of five irrigation treatments (120, 100, 80, 60, and 40% of the water retention capacity), with ten replicates each, totalizing 50 experimental units. The Kc was evaluated using the irrigation lamina that presented the highest production of floral stems among the tested treatments, obtained through the relation between ETc and ETo. The mean of the crop coefficient ranged from 0.72 in vegetative period I, 0.81 in vegetative period II, 0.85 in flowering I, 0.89 in full flowering II, 1.33 in full flowering III, and 1.06 in end of the flowering I. The water consumption for the cut gerbera crop in the treatments with water availability ranged from 225.87 to 523.58 mm. Therefore, the crop coefficients proposed for the different phenological stages of the gerbera were efficient for irrigation management.

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“…Studies on cotton, gerbera, strawberry, tomato and papaya cultivars have demonstrated that significant differences in the population fluctuation of T. urticae might occur in varieties of different genotypes (Lourenção et al 2000, Maruyama et al 2002, Esteves Filho et al 2010, Moro et al 2012, Sulzbach et al 2015). These differences can be attributed to different volatile types produced by plants when attacked by phytophagous mites (Dicke 1988, Pallini et al 1997.…”

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confidence: 99%

“…In the present study, the mite density was low when compared to studies using other commercial crops. Sulzbach et al (2015) observed an average density of 25.5 mites per gerbera leaf in Três Irmãos County, RS, and Noorbo et al (2018) recorded an average population of 8.5 to 15.0 mites/leaf in 20 varieties of roses, yet for a better comparison, it is necessary to consider the leaf area of each species.…”

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confidence: 99%

POPULATION FLUCTUATION OF Tetranychus urticae (ACARI: TETRANYCHIDAE) IN DIFFERENT CHRYSANTHEMUM VARIETIES IN GREENHOUSES

et al. 2020

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This research aimed at verifying the population fluctuation of the phytophagous spider mite Tetranychus urticae in four chrysanthemum (Chrysanthemum morifolium Ramat: Asteraceae) cultivars: Convington (Yellow - CVT), Kalamazoo (White - KLZ), White diamond (Cream - WD) and Royal Time (Pink - RT). Samples were taken every two weeks during two production cycles (March to April and August to October). In each sampling, leaves from 20 chrysanthemum plants were collected from each cultivar, one apical and one basal (40 leaves/cultivar sample). A total of 583 T. urticae individuals were collected, 41.9 % of the individuals in WD, 38.0 % in KLZ, 15.1 % in RT and 5.0 % in CVT. There were no significant differences in the populational density among the evaluated varieties (p > 0.05). Thus, the results indicated no significant differences in plant susceptibility to the phytophagous mite, suggesting that the four varieties are equally adapted to avoid T. urticae attack.

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Abundância e sazonalidade do ácaro-rajado em cultivares de gérbera

Cited by 3 publications

References 21 publications

Plant infesting arthropods sold in supermarkets in the Federal District, Brazil

Plant infesting arthropods sold in supermarkets in the Federal District, Brazil

Crop coefficient of cut gerbera with water supplementation in a protected environment

POPULATION FLUCTUATION OF Tetranychus urticae (ACARI: TETRANYCHIDAE) IN DIFFERENT CHRYSANTHEMUM VARIETIES IN GREENHOUSES

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