Optical Filters against Grey Mould of Greenhouse Crops

Nicot, Philippe C.; Morison, Nicolas; Mermier, M.

doi:10.1007/978-3-662-04584-8_9

Cited by 6 publications

(6 citation statements)

References 16 publications

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“…The use of UV‐ and blue‐absorbing polyethylene films for disease and insect control has gained increased attention (44–51). The prospect of using UV‐blocking covering materials as an IPM approach to control fungal diseases and insect‐borne diseases should become increasingly popular as consumers clamor for fruits and vegetables that are grown organically.…”

Section: Discussionmentioning

confidence: 99%

“…To date, most studies of the use of UV‐blocking barriers to impede insects and reduce the prevalence of fungal diseases have been conducted in plastic greenhouses and other completely enclosed structures (46–51). Whether similar protection can be obtained to the same extent in season‐extending high tunnel houses in which the side curtains are opened and closed nearly every day remains to be determined.…”

Section: Discussionmentioning

confidence: 99%

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Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels^†

Krizek

Clark

Mirecki

2005

Photochem & Photobiology

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The spectral properties of selected UV-blocking and UV-transmitting covering materials were characterized by means of a UV-VIS spectroradiometer or a UV-VIS spectrometer to provide researchers and growers with guidelines for selecting suitable materials for use in studying the effects of ambient solar UV radiation on the production of tomatoes and other high-value crops in high tunnels. A survey was made of a wide range of plastic covering materials to identify commercially available products that had the desired characteristics of transmitting high levels of photosynthetically active radiation and of being stable under ambient solar UV radiation. The study was focused on evaluating films that either blocked or transmitted UV wavelengths below 380 nm to determine comparative growth, yield and market quality and to provide a tool for integrated pest management. Based on this survey, two contrasting covering materials of similar thickness (0.152 mm) and durability (4-year polyethylene), one a UV-blocking film and the other a UV-transmitting film, were selected and used to cover two high tunnels at Beltsville, MD. Spectroradiometric measurements were made to determine comparative spectral irradiance in these two high tunnels covered with these materials and under ambient solar UV radiation. Comparative measurements were also made of selected glass and plastic materials that have been used in UV exclusion studies.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels^†

Krizek

Clark

Mirecki

2005

Photochem & Photobiology

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“…:Fr., is one of the most damaging diseases in greenhouse tomato (Solanum lycopersicum) production. In heated glasshouses, symptoms generally consist of stem lesions which result from the infection of the pruning wounds left by the removal of leaves and axillary buds throughout the growing season (21,23). Moderate temperature, high relative humidity, and free moisture on plant surfaces are considered to be highly conducive to disease development (23,24).…”

mentioning

confidence: 99%

Rapid Change in the Genetic Diversity of Botrytis cinerea Populations After the Introduction of Strains in a Tomato Glasshouse

Decognet¹,

Bardin²,

Trottin-Caudal³

et al. 2009

Phytopathology®

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In tomato glasshouses, the population structure of airborne inoculum of Botrytis cinerea depends on the production of endogenous inoculum on diseased plants as well as on incoming exogenous inoculum. Both types of inocula may contribute differently to the development of epidemics. Two strains of B. cinerea were introduced in each of four separate compartments of an experimental tomato glasshouse. We monitored their impact on disease development and on the genetic diversity of B. cinerea populations using microsatellite markers. The naturally occurring airborne inoculum of B. cinerea displayed a high level of genetic diversity and was rapidly displaced in the glasshouse, as isolates with microsatellite profiles identical to the introduced strains amounted to 66% of the inoculum sampled from the air 14 days after inoculation and 91% of those collected from stem lesions 60 days after inoculation. This suggested an important role of secondary inoculum in disease development, which is compatible with the hypothesis of a polycyclic development of gray mold epidemics in tomato glasshouses. In controlled-environment tests on tomatoes, a wide range of aggressiveness levels was observed, both for isolates sampled from the air and from lesions on plants. Hypotheses are proposed to explain the negligible impact of naturally incoming isolates on the epidemics observed inside the four glasshouse compartments.

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“…Cases of resistance (or reduced sensitivity) of plant pathogens to physical control methods have also been described. Thus, the phytopathogenic fungus Botrytis cinerea is able to become gradually accustomed to the inhibitory effect of UV-filtering films (Nicot et al, 2001). Filtering out the small amounts of near-UV radiation provided by natural light causes a sharp reduction in spore production by this fungus.…”

Section: Durability Of Plant Protection Against Pestsmentioning

confidence: 99%

Durability of efficacy of microbial bioprotectants against plant diseases

Bardin¹,

Pressecq²,

Nicot³

et al. 2021

Burleigh Dodds Series in Agricultural Science

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Plant pathogens can develop resistance to conventional plant protection products but their ability to overcome the effect of microbial bioprotectants is still poorly known. However, various studies show that susceptibility of plant pathogens to microbial bioprotectants can be highly variable. This may contribute to the inconsistent efficacy of microbial bioprotectants sometimes observed in the field. An important question is whether the widespread use of microbial bioprotectants in the field could conduct to the selection of even more resistant phenotypes of plant pathogens. This chapter highlights current knowledge concerning erosion of microbial bioprotectants against plant pathogens and its possible consequences for field efficacy.

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Optical Filters against Grey Mould of Greenhouse Crops

Cited by 6 publications

References 16 publications

Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels^†

Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels^†

Rapid Change in the Genetic Diversity of Botrytis cinerea Populations After the Introduction of Strains in a Tomato Glasshouse

Durability of efficacy of microbial bioprotectants against plant diseases

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Optical Filters against Grey Mould of Greenhouse Crops

Cited by 6 publications

References 16 publications

Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels†

Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels†

Rapid Change in the Genetic Diversity of Botrytis cinerea Populations After the Introduction of Strains in a Tomato Glasshouse

Durability of efficacy of microbial bioprotectants against plant diseases

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Product

Resources

About

Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels^†

Spectral Properties of Selected UV‐blocking and UV‐transmitting Covering Materials with Application for Production of High‐value Crops in High Tunnels^†