Mechanical production of pellets for the application of entomopathogenic nematodes: factors that determine survival time of<i>Steinernema glaseri</i>

Matadamas-Ortiz, P.T.; Ruiz-Vega, Jaime; Vázquez-Feijoo, Juan Alejandro; Cruz-Martínez, H.; Cortés-Martínez, Carlos I.

doi:10.1080/09583157.2013.852161

Cited by 18 publications

(9 citation statements)

References 15 publications

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“…More recently, Matadamas-Ortiz, Ruiz-Vega, Vazquez-Feijoo, Cruz-Martínez, and Cortés-Martínez (2014) developed a method to mechanically formulate EPNs into pellets using different proportions of various materials including diatomaceous earth, attapulgite clay, and coatings comprised of double-distilled water and Opuntia ficus-indica (L.) (Caryophyllales: Cactaceae) mucilage or gelatin. The most promising combination of ingredients in terms of EPN survivability consisted of 100 % diatomaceous earth or 50:50 diatomaceous earth: attapulgite clay with O. ficus-indica mucilage; temperature, IJ age, and moisture levels also impacted EPN survival (Matadamas-Ortiz et al, 2014). Baits could be useful in relatively small or enclosed arenas such as urban environments.…”

Section: Improved Methods Of Applicationmentioning

confidence: 99%

Entomopathogenic Nematode Application Technology

Shapiro‐Ilan

Dolinski

2015

Nematode Pathogenesis of Insects and Other Pests

121

151

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Section: Improved Methods Of Applicationmentioning

confidence: 99%

Entomopathogenic Nematode Application Technology

Shapiro‐Ilan

Dolinski

2015

Nematode Pathogenesis of Insects and Other Pests

121

151

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“…In review, we verified the microstructure of pellets produced mechanically by Matadamas-Ortiz et al (2014) with scanning electron microscopy (Figure 1), where we observed that the particle form-size and pore characteristics are not uniform. Thus, the survival time of the EPNs in granular reservoirs could be improved by controlling the moisture content of the granular structure.…”

Section: Formulations For Storage and Transportmentioning

confidence: 96%

“…Grewal (2000b) stored s. carpocapsae, s. feltiae and s. riobravis for 5 months achieving 90% survival at 25°C. Recently, Matadamas-Ortiz et al (2014) encapsulated s. glaseri in diatomaceous earth pellets (Celite 209) by means of the downward vertical flow of hygroscopic clays in converging hoppers, with storage conditions at room temperature and ambient moisture, and reported 56% survival after 14.1 days. They proposed the mechanisation of the pellet production process.…”

Section: Formulations For Storage and Transportmentioning

confidence: 99%

Formulation of entomopathogenic nematodes for crop pest control - a review

et al. 2017

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Cruz-Martínez H., Ruiz-Vega J., Matadamas-Ortíz P.T., Cortés-Martínez C.I., Rosas-Diaz J. (2017): Formulation of entomopathogenic nematodes for crop pest control -a review. Plant Protect. Sci., 53: 15-24.The different materials and methods used to develop biopesticides with entomopathogenic nematodes (EPNs) still limit the quality of the final product, reducing field efficacy and complicating application strategies. Therefore, the objective of this review is to identify priority areas to improve the EPN formulation process based on the scientific and technological research developed so far. The results show great progress in the EPN survival time, from 7 days to 180 days, through two types of formulations: water dispersible granules and calcium alginate capsules. Also, EPNs formulated and applied as insect cadavers showed higher efficacy for the pest control than the EPNs applied in an aqueous solution. We consider that the priority areas of research are: automated massive formulation and exploration of new additives with better properties that may lead to increase the infectivity in the field. It is concluded that the study of these aspects requires a systemic approach with greater involvement of the invertebrate physiology and systems modelling disciplines.

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“…In reference [48] the molecular kinetic theory was used to model the droplet spreading, and Darcy's law to describe the one-dimensional liquid penetration into the substrate. Particularly, this approach is of interest for applications of formulation of EPNs because the elemental principle of the methods of formation of GBs is to deposit droplets of aqueous suspension containing EPNs over a layer of a mixture of material (carrier and adjuvants) and then the penetration of the liquid carrier happened [5,9]. After that, the materials are mixed and compacted in different ways (i.e.…”

Section: Drying Of Dropletsmentioning

confidence: 99%

“…Natural ingredients are often used in formulations in order to maintain the environmentally "green" concept associated with biopesticides. Polymers are a usual material for pelletisation of EPNs and often include natural carbohydrate and/or protein polymers such as starch, sodium alginate, acacia gum, lignin and gelling agents amongst others [6,8,9].…”

Section: Problem Statement Of Moisture Evaporation From Granular Biopmentioning

confidence: 99%

Moisture Evaporation from Granular Biopesticides Containing Quiescent Entomopathogenic Nematodes

Cortés-Martínez¹,

Ruiz-Vega²,

Martínez-Gutiérrez³

2017

Current Perspective to Predict Actual Evapotranspiration

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The moisture evaporation process from granular biopesticides (GBs) containing entomopathogenic nematodes (EPNs) has influence in the shelf-life of these biological products, but the approach to design GBs with desired transport properties lacks of theoretical support to get closer in a better way to formulations design of long-term storage. In this chapter we review the state of art in theoretical studies about the physics of the moisture evaporation to elucidate what are the mechanisms of drying of GBs. We found that several external and internal factors influence the transport process of moisture exchange among others phenomenon that happened in a porous media such as GBs; consequently, complex and highly dynamic interactions between medium properties, transport processes, and boundary conditions result in a wide range of evaporation behaviors. The theory of drying process in two stages for porous materials with high moisture content seems to be a good starting point to explore further the drying of GBs at different scales and mechanistic and correlative models of evaporation are available to analyze the desiccation in different stages of the elaboration process, which is also of interest in the subject area of science and technology of the formulation of EPNs.

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Mechanical production of pellets for the application of entomopathogenic nematodes: factors that determine survival time ofSteinernema glaseri

Cited by 18 publications

References 15 publications

Entomopathogenic Nematode Application Technology

Entomopathogenic Nematode Application Technology

Formulation of entomopathogenic nematodes for crop pest control - a review

Moisture Evaporation from Granular Biopesticides Containing Quiescent Entomopathogenic Nematodes

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