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Title

Impact of Ultraviolet-Blocking Plastic Films on Insect Vectors of Virus Diseases Infesting Crisp Lettuce

AuthorsDíaz Desani, Beatriz M. ; Biurrun, R.; Moreno, Aránzazu ; Nebreda, Miguel; Fereres, Alberto
KeywordsLactuca sativa
UV-blocking film
Photoselective barrier
Aphids
Thrips
Whiteflies
Virus
Pests
TSWV
Potyvirus
Issue Date1-Jun-2006
PublisherAmerican Society for Horticultural Science
CitationHortscience 41(3): 711-716(2006)
AbstractUltraviolet (UV)-absorbing plastic films are being used as a photoselective barrier to control insect vectors and associated virus diseases in different horticultural crops. A 2-year experiment was carried out in northeastern Spain (Navarra) to evaluate the impact of a UV-blocking film (AD-IR AV) on the population density of insect pests and the spread of insect-transmitted virus diseases associated with head lettuce [Lactuca sativa (L.)]. Results showed that the UV-absorbing plastic film did not loose its ability to filter UV radiation after three lettuce crop cycles (14 months). The UV-absorbing plastic film was effective in reducing the abundance and in delaying the colonization of lettuce by aphids [Macrosiphum euphorbiae (Thomas) and Acyrthosiphum lactucae (Passerini)]. A significant increase in the percentage of marketable plants was achieved under UV-absorbing films due to a reduction in the number of plants infested by aphids and by insect-transmitted virus diseases (mainly potyviruses). Also the UV-absorbing plastic films were effective in reducing the population density of Frankliniella occidentalis (Pergande) and the spread of tomato spotted wilt virus (TSWV) as well as the population density of the lepidopteran pest, Autographa gamma (L.), a common pest of lettuce in Spain. However, no effective control of the greenhouse whitefly Trialeurodes vaporariorum (Westwood) was achieved. The results showed that UV-absorbing plastic films are a very promising tool to protect greenhouse lettuce from the main pests and insect-transmitted virus diseases occurring in northeastern Spain
Publisher version (URL)http://hortsci.ashspublications.org/cgi/content/abstract/41/3/711
URIhttp://hdl.handle.net/10261/11161
ISSN0018-5345
Appears in Collections:(ICA) Artículos
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