Acaricidas utilizados na citricultura convencional e orgânica: manejo da leprose e populações de ácaros fitoseídeos

Andrade, Daniel Júnior de; Oliveira, Claudio; Pattaro, Fernando César; Siqueira, Diego Silva

doi:10.1590/s0100-29452011005000013

Cited by 10 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The B. phoenicis life cycle, its population fluctuation, and the climatic effect have been studied by Haramoto (1966), Oliveira (1986), Czermainski (2006 and Andrade et al (2010). These studies have several elements in common: (1) they were performed in areas with a history of acaricide application, (2) they focused on counting mites on plant organs, (3) they did not describe the infestation process from an epidemiological point of view and (4) their measurement of the influence of climatic variables was qualitative or only partial.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Infestation dynamics of Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae) in citrus orchards as affected by edaphic and climatic variables

Laranjeira

Silva²,

Andrade

et al. 2015

Exp Appl Acarol

View full text Add to dashboard Cite

Brevipalpus phoenicis (Geijskes) is a cosmopolitan and polyphagous mite that transmits important phytoviruses, such as coffee ringspot virus, passion fruit green spot virus and Citrus leprosis virus C. To characterise the dynamics of the probability and the rate of B. phoenicis infestation in response to edaphic and climatic factors, monthly inspections were performed in nine orchards in a citrus region of the State of Bahia, Brazil, for 35 months. Three fruits per plant were examined using a magnifying glass (10×) on 21 plants distributed along a "W"-shaped path in each orchard. Meteorological data were collected from a conventional station. To determine the correlations among the climatic variables, the data were analysed using Spearman correlations. Variables were selected by principal component analysis, and those that contributed the most to differentiate the groups were evaluated via a Mann-Whitney test. Using the quantile-quantile method, the limit values for the following climatic variables were determined: temperature (24.5 °C), photoperiod (12 h), relative humidity (83%), evapotranspiration (71 mm) and rainy days (14 days). The combination of longer days, higher temperatures, lower relative humidity levels and lower evapotranspiration increased the probability of B. phoenicis infestation, whereas successive rain events decreased that risk. Infestation rates were negatively affected by relative humidity levels above 83% and were positively affected by a decreasing available soil-water fraction and increasing insolation and photoperiod.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Although instrumental for understanding mite biology, they do not allow further inferences to be made about the infestation process nor the impact on disease spreading rate. Andrade et al (2010) showed that a reduction in leprosis intensity is not directly proportional to a reduction in mite numbers after spraying acaricides.…”

Section: Introductionmentioning

confidence: 99%

Infestation dynamics of Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae) in citrus orchards as affected by edaphic and climatic variables

Laranjeira

Silva²,

Andrade

et al. 2015

Exp Appl Acarol

View full text Add to dashboard Cite

show abstract

“…For predators of the Arachnida class, sulfur + calcium (3.5 Ba) was less selective, causing a reduction in the populations of the predatory mite Iphiseiodes zuluagai and Euseius spp. in citrus (ANDRADE et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

Selectivity of pesticides used in peach orchards to eggs and pupae of the predators Chrysoperla externa and Coleomegilla quadrifasciata

Armas

Grützmacher

Nava

et al. 2019

SCA

View full text Add to dashboard Cite

This study aimed to assess, under laboratory conditions, the selectivity of nine pesticides used in peach to the egg and pupal stages of the predators Chrysoperla externa and Coleomegilla quadrifasciata. Tests consisted of the direct application of pesticides on eggs and pupae of predators and assessment of sublethal effects on fertility and fecundity of emerged adults. For eggs, the pesticides were classified according to the effects on the reduction of the percentage of larval hatching, while for pupae they were classified as a function of the total effect, according to the toxicity scale proposed by the International Organization for Biological and Integrated Control (IOBC). All the pesticides (used dose) were harmless (class 1) to eggs of C. externa, but abamectin (80) and copper + calcium (1%) were considered slightly harmful (class 2) to pupae. In bioassays with C. quadrifasciata, abamectin (80), deltamethrin (40), and malathion (150) were classified as slightly harmful (class 2), while fenitrothion (100) was moderately harmful (class 3) to predator eggs; in the pupal stage, abamectin (80), fenitrothion (100), and malathion (150) were considered harmful (class 4). Azadirachtin (1%), chlorantraniliprole (14), deltamethrin (40), copper + calcium (25% + 10%), and sulfur + calcium (3.5 Ba) were harmless (class 1) to eggs and pupae of C. externa and C. quadrifasciata and thus should be prioritized in sprayings for pest control in the IPM of peach.

show abstract

“…In conventional citrus orchards, this mite species is controlled mainly with chemical acaricides, which reduce mite populations below the economic injury level (NEVES et al, 2002). However, the only product available to control this mite in organic citrus orchards has been lime sulfur (ANDRADE et al, 2010;KIM et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Lime sulfur to control citrus flat mite and its interactions with the entomopathogenic fungus Lecanicillium muscarium

Alves¹,

Casarin

Gonçalves-Gervásio

et al. 2022

Arq. Inst. Biol.

View full text Add to dashboard Cite

Lime sulfur is one of the few products indicated to control Brevipalpus yothersi in Brazilian organic citrus orchards. Other strategies, such as the use of entomopathogenic fungi should be evaluated, and Lecanicillium muscarium is one of the basic choices for pest management. Knowledge of the interactions between lime sulfur and this entomopathogen is critical for developing control strategies. With this goal, it was conducted the toxicological characterization of lime sulfur to B. yothersi and the compatibility evaluation with L. muscarium. Finally, the effects of L. muscarium and lime sulfur mixtures on B. yothersi control were evaluated. Product evaluation for B. yothersi was done through direct and residual contact bioassay, and different concentrations of lime sulfur mixed in potato dextrose agar culture medium were used to evaluate compatibility with L. muscarium. Lime sulfur was effective against adults of B. yothersi and caused eggs unviability of up to 71.0%, at a dose of 80 L per 2,000 L of H 2 O. The lethal concentration (LC 50 and LC 99 ) of lime sulfur estimated for mite adults were 246.62 and 858.5 μg of sulfur per mL of H 2 O (ppm a.i.). Lime sulfur concentrations of 180 to 560 ppm a.i. showed promise for use in combination with L. muscarium. However, concentrations of 1,000 and 5,600 ppm significantly reduced colony size and the number of spores/colony. The mixture of 100 and 180 ppm a.i. of lime sulfur with L. muscarium (10 8 conidia•mL -1 ) was not able to reduce the lethal time of entomopathogen on B. yothersi.

show abstract

Acaricidas utilizados na citricultura convencional e orgânica: manejo da leprose e populações de ácaros fitoseídeos

Cited by 10 publications

References 14 publications

Infestation dynamics of Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae) in citrus orchards as affected by edaphic and climatic variables

Infestation dynamics of Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae) in citrus orchards as affected by edaphic and climatic variables

Selectivity of pesticides used in peach orchards to eggs and pupae of the predators Chrysoperla externa and Coleomegilla quadrifasciata

Lime sulfur to control citrus flat mite and its interactions with the entomopathogenic fungus Lecanicillium muscarium

Contact Info

Product

Resources

About